Check Valve Unit For Solid Ink Reservoir System

A check valve unit is provided for a high-speed phase change ink image producing machine between a reservoir for receiving and holding a volume of melted ink from a source and a receiving unit, which may be a printhead system. The check valve unit includes a plurality of ball elements trapped between upper and lower housings defining a like plurality of inlet and discharge passageways. The passageways are configured to optimize flow of melted ink through the unit during charging of the secondary reservoir. The check valve unit is scalable as to size and number of reservoirs for a particular application. The unit further incorporates features that simplify the manufacturing and assembly process while maintaining optimal performance.

LIGHTWEIGHT TITANIUM ALUMINIDE VALVES AND METHODS FOR THE MANUFACTURE THEREOF

Embodiments of a lightweight, high temperature airborne valve are provided. In one embodiment, the airborne vale includes a valve element and a flowbody. The flowbody is formed at least partially from a titanium aluminide alloy and has a flow passage therethrough in which the valve element is movably mounted. Embodiments of a method for producing such a lightweight, high temperature airborne valve are also provided. In one embodiment, the method includes the steps of forming a lightweight flowbody at least partially from a titanium aluminide alloy, hot isostatically pressing the lightweight flowbody, and machining the lightweight flowbody to desired dimensions. 1. A method for producing a lightweight , high temperature airborne valve , the method comprising the steps of:selecting a near-stoichiometric titanium aluminide alloy having a density between approximately 3.5 grams per cubic centimeter and approximately 5.0 grams per cubic centimeter;pouring the selected near-stoichiometric titanium aluminide alloy into a mold in an enclosure substantially devoid of oxidants to form a lightweight flowbody having a flow passage extending therethrough;removing the lightweight flowbody from the mold;hot isostatic pressing the lightweight flowbody;machining the lightweight flowbody to desired dimensions; andmounting a valve element in the flow passage of the lightweight flowbody.2. The method of wherein the lightweight flowbody is fabricated to include a radial mounting flange claim 1 , and wherein the method further comprises installing the lightweight claim 1 , high temperature airborne valve within a pneumatic avionic system deployed aboard an aircraft and utilized to regulate the flow of pressurized air or combustive gasses bled from a gas turbine engine during operation thereof.3. The method of further comprising applying an oxidation-resistant coating over at least one surface of the lightweight flowbody after machining the lightweight flowbody to desired dimensions.4. ...

METHOD FOR MOUNTNG SHIELDING ON A TURBINE CASING, AND MOUNTING ASSEMBLY FOR IMPLEMENTING SAME

A method and structure negating thermal inertia of a solid portion, such as shielding, which influences mechanical behavior of parts of an engine structure, by reducing forces transmitted to the engine structure during an event in which a turbine blade ruptures, while preserving mechanical strength and vibratory positioning. The structure includes a flexible fastener for a shield, enabling producing a fusible section. An assembly for mounting a shielding onto a casing of the engine structure of a turbine includes connection lugs and points for attachment to the casing and shielding. The attachment points are sufficiently spaced apart in accordance with curvature of the shielding and casing so connection between the lugs and the shielding or casing, and connection of the attachment points, are substantially tangential. The lugs are sized so the connection has sufficient flexibility to control vibratory positioning thereof and ensure sufficient mechanical strength under thermo-mechanical loads. 110-. (canceled)11. A shield mounting method for retention on a casing of an engine structure of a turbine , comprising:coupling a shield on a carter through a tangential connection oriented in a circumferential direction between points of the shield and the casing sufficiently spaced apart in accordance with a curvature of the shield and the casing between such points so as to implement a flexible coupling between the shield and the casing, configured to provide a vibratory positioning and a sufficient mechanical strength under a thermo-mechanical load.12. A mounting method according to claim 11 , wherein a vibration dampening is provided in connection with the coupling between the shield and the casing.13. A mounting method according to claim 11 , wherein a connection sizing is determined in accordance with the thermo-mechanical load to which the connections are submitted.14. A mounting method according to claim 11 , wherein a number of connections is determined and ...

MICRO-VALVE HAVING AN ELASTICALLY DEFORMABLE VALVE LIP, METHOD FOR PRODUCING SAME AND MICRO-PUMP

The present invention relates to a micro-valve which is formed from two firmly connected substrates and preferably has an actuator element, for example that is diaphragm-driven, for the controlled opening and closing of a first and/or second passage. The invention further relates to a method for producing such a micro-valve and to a micro-pump which uses at least one such micro-valve. Said micro-pump is intended to be used in particular in conjunction with the development of an artificial sphincter. The micro-valve has a first substrate and a second substrate which are non-detachably joined to each other in order to form a controllable fluid flow section, and at least one first passage and at least one second passage. According to the invention, the micro-valve has at least one elastically deformable seal structure which, for example, can be formed by a photostructurable silicone, to seal off the first and/or second passage. 1112114. A micro-valve having a first substrate () and a second substrate () which are non-detachably joined to each other in order to form a controllable fluid flow section , and{'b': 102', '104, 'with at least one first passage () and at least one second passage (),'}{'b': 100', '110', '111, 'where said micro-valve () comprises at least one elastically deformable seal structure (, ) for sealing against fluid.'}2102104110. The micro-valve according to claim 1 , where said seal structure for sealing said first and/or second passage ( claim 1 , ) comprises at least one elastically deformable valve lip ().3110. The micro-valve according to claim 2 , where said valve lip () is under deformation when said valve is closed.4106108102104. The micro-valve according to further comprising at least one actuator element ( claim 1 , ) for the controlled opening and closing of said first and/or second passage ( claim 1 , ).5106108102104. The micro-valve according to claim 4 , where said actuator element ( claim 4 , ) is operatable for opening said first and/ ...

Pump Housing, in Block Form, of a Vehicle Brake System, and Method for Producing the Same

In a pump housing, in block form, of a vehicle brake system, having a top side which is manufactured to final dimensions and a bottom side which is manufactured to final dimensions, the final dimensions of the top side and of the bottom side are obtained by means of a non-cutting deformation process starting from a blank.

METHOD FOR MANUFACTURING HOLLOW ENGINE VALVE

A method for manufacturing a hollow engine valve includes a step for performing rotational plastic working on a follow engine valve body semifinished product which is configured from a shaft part and a valve umbrella part forming portion connected to the shaft part. A columnar hole part is formed from the shaft part to an enlarged diameter section of the valve umbrella part forming portion to thereby reduce the diameter of the shaft part. A necking step follows the rotational plastic working step, necking the hollow engine valve body semifinished product to thereby reduce the outer diameter and the inner diameter of the shaft part. A sealing step seals the leading end of the shaft part to obtain the hollow engine valve. 1. A method for manufacturing a hollow engine valve having a hollow portion formed from a stem part to a widening portion of a valve head part , characterized in that the method comprises:a first rotary plastic working step of performing rotary plastic working on a semifinished hollow engine valve body which includes a stem part and a valve head part forming part connected to the stem part, to thereby narrow the stem part, the semifinished hollow engine valve body having a columnar hole portion formed from the stem part to a widening portion of the valve head part forming part;a necking step of, after the first rotary plastic working step, performing necking on the semifinished hollow engine valve body to thereby reduce an outer diameter and an inner diameter of the stem part, the necking using as many dies as the number of narrowing operations to thereby narrow the widening portion of the valve head part forming part and the stem part of the semifinished hollow engine valve body stepwisely, the dies being configured to press the widening portion and the stem part and having die holes with inner diameters decreasing slightly and successively according to a sequence of the operations; anda sealing step of, after the necking step, sealing a tip of the ...

METHOD FOR MANUFACTURING VALVE TRAIN PARTS USING METAL POWDER INJECTION MOLDING

Disclosed is a method for manufacturing a plurality of valve train parts using metal powder injection molding, comprising: obtaining a raw material for injection molding by mixing a metal powder and a binder; forming a formed body by injecting the obtained raw material for injection molding into a mold of a valve train part shape; solvent extracting the formed body; forming a sintered body by debinding and sintering the solvent extracted formed body; sizing processing the sintered body; vacuum carburizing the sizing processed sintered body; and polishing the vacuum carburized sintered body. 1. A method for manufacturing a plurality of valve train parts using a metal powder injection molding comprising:obtaining a raw material for injection molding by mixing a metal powder and a binder;forming a formed body by injecting the obtained raw material for injection molding into a mold of a valve train part shape;solvent extracting the formed body;forming a sintered body by debinding and sintering the solvent extracted formed body;sizing processing the sintered body;vacuum carburizing the sizing processed sintered body; andpolishing the vacuum carburized sintered body.2. The method for manufacturing the plurality of valve train parts using metal powder injection molding according to claim 1 , wherein claim 1 , in obtaining the raw material for injection molding claim 1 , the metal powder of about 93% by weight and the binder of about 7% by weight is mixed.3. The method for manufacturing the plurality of valve train parts using metal powder injection molding according to claim 2 , wherein the metal powder comprises: nickel (Ni) about 2% by weight claim 2 , molybdenum (Mo) about 0.5% by weight claim 2 , carbon (C) about 0.25% by weight and the remaining percent by weight of iron (Fe) of the entire composition.4. The method for manufacturing the plurality of valve train parts using metal powder injection molding according to claim 1 , wherein claim 1 , in forming a sintered ...

Method for making lubrication spray orifice for valve actuating mechanism

A method of making a lubrication spray orifice for a valve actuating mechanism includes the steps of forming a dome socket for a finger follower of a valve actuating mechanism of an engine, forming a pocket in the dome socket and thinning out material of the pocket, and forming an elongated slit opening by expanding the pocket in a single lancing operation to lance a surface of the pocket to create a lubrication spray metering orifice.

Cam follower for a valve train of an internal combustion engine

A cam follower for a valve train of an internal combustion engine, the cam follower being formed as a lever, which is U-shaped in cross-section, and produced from steel sheet without machining, and which has a floor wall ( 3 ) and lateral walls ( 4 and 5 ) extending therefrom, wherein a valve stem support ( 10 ) is disposed as a groove ( 11 ) at one end of the lever in a surface of the floor wall ( 3 ) facing away from the lateral walls ( 4 and 5 ). Lateral guide walls ( 12 and 13 ) of the valve stem support ( 10 ) are formed by chipless shaping so as to extend from and counter to the lateral walls ( 4 and 5 ) and are connected to a support wall ( 14 ) that forms a valve stem support surface ( 10 a ). The valve stem support surface ( 10 a ) extends in a first plane ( 10 b ), which is spaced from a second plane ( 16 a ), which extends through an internal transition ( 15, 16 ) between the lateral walls ( 4 and 5 ) and the adjacent guide walls ( 12 and 13 ), in the direction of ends ( 19, 20 ) of the lateral walls ( 4 and 5 ). In order to reduce stress and resulting cracks, an inner radius R is provided at the transition ( 15 and 16 ), by which radius a free space ( 17, 18 ) is created between the lateral wall ( 4, 5 ) and the guide wall ( 12, 13 ), which free space narrows towards the end ( 19, 20 ) of the respective lateral wall ( 4, 5 ).

AXLE ASSEMBLY INCLUDING A WHEEL END AND METHOD OF MANUFACTURE

An axle housing assembly includes an axle housing that includes a center portion and a first arm portion that extends from the center portion. The axle housing assembly further includes a wheel end housing that includes a wheel end body that extends from the first arm portion and a spindle that extends from the wheel end body. 1. A method of manufacturing an axle housing assembly comprising:providing an axle housing having a center portion and first and second arm portions extending in opposing directions from the center portion, the first arm portion including an end surface that faces away from the center portion; a wheel end body having an inboard end surface and an outboard end surface disposed opposite the inboard end surface;', 'a spindle having a first spindle end surface and a second spindle end surface disposed opposite the first spindle end surface, wherein the spindle is mounted to the wheel end body by engaging the first spindle end surface to the outboard end surface and welding the spindle to the wheel end body; and', 'a mounting flange that is welded to the wheel end body and is spaced apart from the spindle; and, 'providing a wheel end housing that includesmounting the wheel end housing to the axle housing by engaging the inboard end surface to the end surface and welding the wheel end housing to the axle housing, wherein the mounting flange is axially positioned closer to the axle housing than the spindle.2. The method of wherein the mounting flange is axially positioned closer to the axle housing than the outboard end surface.3. The method of wherein providing the wheel end housing further comprises mounting claim 1 , a suspension interface plate to the wheel end body between the inboard end surface and the outboard end surface.4. The method of claim I wherein the inboard end surface is a ring having a first inner diameter claim 1 , the outboard end surface is a ring having a second inner diameter claim 1 , and the first inner diameter is greater ...

Method for producing a kinetic energy storage system

A flywheel energy storage system incorporates various embodiments in design and processing to achieve a very high ratio of energy stored per unit cost. The system uses a high-strength steel rotor rotating in a vacuum envelope. The rotor has a geometry that ensures high yield strength throughout its cross-section using various low-cost quenched and tempered alloy steels. Low-cost is also achieved by forging the rotor in a single piece with integral shafts. A high energy density is achieved with adequate safety margins through a pre-conditioning treatment. The bearing and suspension system utilizes an electromagnet that off-loads the rotor allowing for the use of low-cost, conventional rolling contact bearings over an operating lifetime of several years.

ENGINE VALVE WITH RAISED RING OR DIMPLE

An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple. 1. An engine head assembly for an internal combustion engine comprising:an engine head having a fluid conduit formed therein; andan engine valve including a stem, a head comprising an outer lip surface, a seating surface interposed between the stem and the outer lip surface, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface;wherein the combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple, and the engine valve includes a body of revolution, defining an axis of revolution, and the raised ring defines a lower axial extremity of the engine valve.2. The engine head assembly of wherein the body of revolution of the engine valve claim 1 , defines an axis of revolution claim 1 , a radial direction perpendicular to the axis of revolution claim 1 , and a circumferential direction about the axis of revolution claim 1 , and the raised ring and the dimple extend circumferentially about the axis of revolution.3. The engine head assembly of wherein the first convex arcuate surface is spaced away a first radial distance from the outer lip surface claim 2 , and the first concave arcuate surface is spaced away from the outer lip surface a second radial distance from the outer lip ...

METHOD OF REMANUFACTURING A ROCKER ARM

A method of remanufacturing a rocker arm is provided. The rocker arm includes a body defining a center hole for receipt of a shaft, a first arm extending radially away from the center hole, and a second arm extending radially away from the center hole in a direction opposite the first arm. The second arm is configured to be operatively engaged with a valve mechanism and includes a contact surface configured to engage with a braking member. The contact surface includes a worn upper hardened surface. The method includes machining the contact surface to a depth less than a predefined tolerance limit to remove the worn upper hardened surface and create a generally planar unhardened contact surface. The method further includes hardening the unhardened contact surface using a laser to create a repaired contact surface with a surface hardness of greater than at least Rockwell C 50. 1machining the contact surface to a depth less than a predefined tolerance limit to remove the worn upper hardened surface and create a generally planar unhardened contact surface; andhardening the unhardened contact surface using a laser to create a repaired contact surface with a surface hardness of greater than at least Rockwell C 50.) A method of remanufacturing a rocker arm, the rocker arm including a body defining a center hole for receipt of a shaft, a first arm extending radially away from the center hole for engaging a camshaft, and a second arm extending radially away from the center hole in a direction opposite the first arm, the second arm configured to be operatively engaged with a valve mechanism and having a contact surface configured to engage with a braking member, the contact surface having a worn upper hardened surface, the method comprising: The present disclosure relates to a method of remanufacturing a rocker arm.Rocker arms are typically used in an engine to actuate various valve train components, such as intake and exhaust valves. During normal operation of the engine, ...

Circular Hydraulic Press and Method for Reforming and Resizing a Chamber Opening in a Combustion Chamber Housing

A circular hydraulic press reforms and resizes a chamber opening in a combustion chamber housing. The press comprises a bar having a U-shaped end and a pair of free ends. The press comprises a panel having a C-shaped edge, a mounting edge, and a pair of slotted edges. The U-shaped end of the bar and the C-shaped edge of the panel buttress the perimeter of the chamber opening. The slotted edges and a pair of tubes on the slotted edges slidably receive the free ends of the bar to enable displacement of the panel towards the bar. A disk having a predetermined annular shape and circumference positions in the chamber opening. A hydraulic piston displaces the C-shaped edge of the panel towards the U-shaped end of the bar to press the chamber opening against the disk, and thereby reform the disk to substantially the same shape and circumference as the disk. 1. A circular hydraulic press for reforming and resizing a chamber opening in a combustion chamber housing , the press comprising:a bar defined by a generally U-shaped end and a pair of free ends;a panel defined by a generally C-shaped edge, a mounting edge, and a pair of slotted edges, the pair of slotted edges configured to slidably receive the pair of free ends of the bar;a pair of tubes fixedly disposed along the pair of slotted edges of the panel, the pair of tubes configured to receive the pair of free ends of the bar;a disk defined by a predetermined shape and circumference, the disk disposed between the C-shaped edge of the panel and the U-shaped end of the bar;a hydraulic piston disposed to join with the mounting edge of the panel, the hydraulic piston configured to apply a unidirectional force on the panel;a pump configured to generate the unidirectional force being applied on the hydraulic piston, the pump further configured to increase and decrease the unidirectional force; andat least one force adjustment member configured to increase and decrease the unidirectional force in conjunction with, or ...

POWER END FRAME ASSEMBLY FOR RECIPROCATING PUMP

A plate segment for a reciprocating pump power end frame assembly, the power end frame assembly having a pair of end plate segments and at least one middle plate segment disposed between the end plate segments. The plate segment consists of the middle plate segment or one of the pair of end plate segments and includes a plate having a front wall, a rear wall, a top wall, a bottom wall and a pair of sidewalls and at least one opening forming a bearing support surface, the opening extending through the plate. The plate segment further includes at least one extension extending from at least one of the sidewalls of the plate at a position to align with and contact a corresponding extension on an adjacently positioned plate. 1. A plate segment for a reciprocating pump power end frame assembly , the power end frame assembly having a pair of end plate segments and at least one middle plate segment disposed between the end plate segments , the plate segment consisting of the middle plate segment or one of the pair of end plate segments , comprising:a plate having a front wall, a rear wall, a top wall, a bottom wall and a pair of sidewalls;at least one opening forming a bearing support surface, the opening extending through the plate; andat least one extension extending from at least one of the sidewalls of the plate at a position to align with and contact a corresponding extension on an adjacently positioned plate.2. The plate segment of claim 1 , wherein the at least one extension is integrally formed with at least one of the sidewalls of the plate.3. The plate segment of claim 1 , wherein the extension is a gusset extending from at least one of the sidewalls of the plate.4. The plate segment of claim 1 , wherein the at least one extension includes a plurality of extensions extending from at least one of the sidewalls of the plate adjacent the bearing support surface.5. The plate segment of claim 1 , wherein the at least one extension forms at least a portion of the front ...

Support for reciprocating pump

A skid for supporting a reciprocating pump assembly, the reciprocating pump assembly including a power end frame assembly having a pair of end plates and a plurality of middle plates disposed between the end plates. The end plates each have at least a pair of feet and the middle plates each having at least one foot. The skid includes a base and a plurality of pads extending from the base. At least a portion of the plurality of pads correspond to the end plate feet and at least another portion of the plurality of pads correspond to the at least one foot of each middle plate.

ELECTRIC BALL VALVE AND MANUFACTURING METHOD THEREFOR

An electric ball valve and a manufacturing method therefor. The electric ball valve comprises a control component, a gear decelerating mechanism, a valve body component, and a housing component, wherein the control component comprises a cover and a rotator component provided in the cover, the housing component comprises an upper housing part and a lower housing part, the cover, the upper housing part and the lower housing part are made out of a stainless steel material by machining, the cover is fixed to the upper housing part by welding, the upper housing part is fixed to the lower housing part by welding, and the lower housing part is fixed to a valve body by welding. 1. An electric ball valve , comprising a control component , a gear reduction mechanism , a valve body component and a housing component , whereinthe control component comprises a cover body and a rotor component arranged in the cover body;the gear reduction mechanism is arranged in an inner cavity of the housing component, the gear reduction mechanism comprises an input gear component and an output gear carrier, and a rotating shaft of the rotor component is configured to drive the input gear component to rotate in a circumferential direction;the valve body component comprises a valve body, a valve stem, a first valve seat, and a valve core;the first valve seat is fixedly connected with the valve body, and the valve core is arranged in an inner cavity of the valve body component;one end of the valve stem extends into a central hole of the output gear carrier, and the output gear carrier is configured to drive the valve stem to rotate in the circumferential direction; another end of the valve stem extends into a groove of the valve core, and the valve stem is configured to drive the valve core to rotate in the circumferential direction; andthe housing component comprises an upper housing portion and a lower housing portion,the cover body, the upper housing portion and the lower housing portion are ...

METHOD FOR FILLING WITH METALLIC SODIUM

Provided is a method for filling a stem-side hollow area of an engine valve with metallic sodium. The method includes injecting melted metallic sodium into a cylinder having a larger diameter than an inner diameter of the hollow area of the engine valve, forming a solidified metallic sodium rod having a substantially uniform structure in the cylinder, inserting the metallic sodium into the hollow area of the engine valve through a nozzle having a small diameter, and sealing the engine valve. 15-. (canceled)6. A method for filling a hollow area of a hollow engine valve with metallic sodium , the method comprising:injecting melted metallic sodium into a cylinder having a larger diameter than an inner diameter of the hollow area of the engine valve under a directional solidification condition, at a speed slightly faster than a speed at which a droplet solidifies, and in a form in which no discontinuity occurs;forming a solidified metallic sodium rod having a substantially uniform structure in the cylinder;inserting metallic sodium into the hollow area of the engine valve through a nozzle shaped die having a small diameter while keeping the uniform structure of the metallic sodium rod;cutting the inserted metallic sodium; andsealing the engine valve.7. The method for filling with metallic sodium according to claim 6 , wherein the melted metallic sodium is injected into the cylinder with a boundary of the metallic sodium in the cylinder kept in a semi-solidified condition.8. The method for filling with metallic sodium according to claim 6 , wherein the melted metallic sodium is injected into the cylinder by dripping.9. The method for filling with metallic sodium according to of claim 6 , wherein an inner diameter of the cylinder is within a range of 20 mm to 50 mm claim 6 , a temperature of the metallic sodium is within a range of 180° C. to 250° C. claim 6 , and an injection speed is within a range of 150 g/min to 300 g/min.10. A method for purifying metallic sodium ...

RELIEF VALVE FOR A TURBOCHARGER AND PROCESS FOR MANUFACTURING A RELIEF VALVE

The present invention relates to a relief valve () for a turbocharger, in which the crank arm () is made of a first material and the shaft () is made of a second material different from the first material used for manufacturing the crank arm (), each of the materials containing a composition that provides the necessary properties according to the application of each component of the relief valve (). The present invention also relates to a process for manufacturing the relief valve (), which allows the crank arm () and the shaft () to be manufactured separately, using different materials for the manufacture of each component. 115-. (canceled)1611. A relief valve () for a turbocharger , the relief valve () comprising:{'b': '2', '#text': 'a valve flap (); and'}{'b': ['3', '4'], '#text': 'a support element, the support element being formed by a crank arm () and a shaft (),'}{'claim-text': [{'b': '3', '#text': 'the crank arm () is made of a first material; and'}, {'b': ['4', '3'], '#text': 'the shaft () is made of a second material different to the first material used for manufacturing the crank arm ().'}], '#text': 'wherein:'}1713. The relief valve () according to claim 16 , wherein the first material used for manufacturing the crank arm () is composed of a nickel-based material with at least 30% nickel by weight.1813. The relief valve () according to claim 17 , wherein the first material used for manufacturing the crank arm () contains up to 0.08% carbon by weight claim 17 , 0.5% silicon by weight claim 17 , up to 0.5% manganese by weight claim 17 , up to 0.015% phosphorus by weight claim 17 , up to 0.01% sulphur by weight claim 17 , between 13.5% and 15.5% chrome by weight claim 17 , between 30% and 33.5% nickel by weight claim 17 , between 0.4% and 1% molybdenum by weight claim 17 , between 1.6% and 2.2% aluminum by weight claim 17 , and iron as residue.1913. The relief valve () according to claim 16 , wherein the first material used for manufacturing the crank arm ...

BEARING SYSTEM FOR RECIPROCATING PUMP AND METHOD OF ASSEMBLY

A power end frame assembly for a reciprocating pump that includes a first and second end plate segment each including annular bearing support surfaces configured to support a crankshaft bearing assembly. At least one middle plate segment is disposed between the first and second end plate segments and includes an annular bearing support surface configured to support a crankshaft bearing assembly. The annular bearing support surfaces of the first and second end plate segments and the at least one middle plate segment each have a diameter and are coaxially aligned. The diameter of at least one of the first and second end plate segments is different from the diameter of the at least one middle plate segment to facilitate insertion and removal of the crankshaft bearing assembly from the power end frame assembly. 1. A method of securing a crankshaft to a power end for a reciprocating pump assembly , the power end including a pair of end plate segments and at least two middle plate segments disposed between the end plate segments , each of the end plate segments and middle plate segments including an opening forming a bearing support surface , the bearing support surfaces of the end plate segments having a diameter larger than the diameter of the bearing support surfaces of the middle plate segment , the method comprising:inserting a first bearing race through the bearing support surface of one of the end plate segments and inserting a second bearing race through the bearing support surface of the other end plate segment; andinstalling the first and second bearing races onto respective middle plate bearing support surfaces.2. The method of claim 1 , further comprising installing third and fourth bearing races onto each of the bearing support surfaces of the end plate segments.3. The method of further comprising installing a carrier member onto each of the bearing support surfaces of the end plate segments.4. The method of claim 1 , further comprising:providing a crankshaft ...

PROCESS AND DEVICE FOR MANUFACTURING HOLLOW, INTERNALLY COOLED VALVES

A matrix for shaping a valve preform has a circular through opening and a reduced conical section. The reduced conical section tapers from an outer diameter to a reduced cone inner diameter, the outer diameter being greater than or equal to the initial outer diameter of the valve preform, and the matrix inner diameter being smaller than the initial outer diameter. 112-. (canceled)13. A tapering machine for shaping a valve preform , comprising a matrix for shaping a valve preform , the matrix having a circular through opening and a reduced conical section , wherein the reduced conical section tapers from an outer diameter of the opening of the matrix to a reduced cone inner diameter of the matrix , and wherein the outer diameter of the opening of the matrix is greater than or equal to an initial outer diameter of the valve preform , and the matrix reduced cone inner diameter is smaller than the initial outer diameter , and further including a pressing device an a pressing device controller than are configured for pressing the valve preform with a stem section thereof into the matrix with an oscillating motion.14. The tapering machine for shaping a valve preform according to claim 13 , wherein the reduced conical section of the matrix comprises a first reduced conical section claim 13 , and wherein the matrix also includes a second reduced conical section claim 13 , and wherein a transition section is situated between the first and the second reduced conical sections.15. The tapering machine for shaping a valve preform according to claim 14 , wherein the transition section between the first and the second reduced conical sections is cylindrical.16. The tapering machine for shaping a valve preform according to claim 14 , wherein the transition section expands between the first and the second reduced conical sections.17. The tapering machine for shaping a valve preform according to claim 14 , wherein the matrix includes a cylindrical calibration section behind the ...

VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

There is provided an engagement groove () which is formed in a first shoe (S) of first to fourth shoes (S), (S), (S), (S) at a circumference position at which the engagement groove () is not overlapped an abutment surface () with a first vane (V), which includes a pair of side surfaces () and () that are substantially parallel to the abutment surface (), and with which a positioning pin () protruding from a sprocket () is engaged, so as to match phases of a housing main body () and the sprocket () in a rotation direction. 1. A valve timing control device for an internal combustion engine , the valve timing control device comprising:a housing main body which has a cylindrical shape having openings formed on both end sides in an axial direction, and which includes a plurality of shoes formed on an inner circumference side of the housing main body to protrude from the inner circumference side;a vane rotor which is fixed on a cam shaft, which is received within the housing main body, which is arranged to be rotated relative to the housing main body, and which includes a plurality of vanes each separating a portion between the shoes to an advance angle operation chamber and a retard angle operation chamber;a pair of plate members closing the both end side openings of the housing main body;a plurality of bolts arranged to fix the housing main is body and the pair of the plate members together through bolt insertion holes formed in the shoes to penetrate the shoes;a specific vane of the vanes which has a circumferential width larger than circumferential widths of the other vanes;a specific shoe of the shoes which includes an abutment surface on which one circumferential side surface of the specific vane is abutted;a recessed portion which is formed in the specific shoe at a predetermined circumferential position at which the recessed portion is not overlapped with the abutment surface of the specific shoe in a radial direction of the housing main body, and which includes a ...

METHOD AND APPARATUS FOR MANUFACTURING STEPPED MEMBER

A method and an apparatus for manufacturing a stepped member are provided. An intermediate portion of a shaft workpiece is radially enlarged while being compressed in an axial direction by applying alternating load to the intermediate portion in a direction intersecting the axial direction in a state in which pressure that compresses the shaft workpiece in the axial direction is applied to both ends of the shaft workpiece. The enlarged intermediate portion of the shaft workpiece is cat in a direction perpendicular to the axial direction so that the shaft workpiece is divided into two stepped members. Each of the stepped members has a shaft portion and a head portion provided at an axial end of the shaft portion, and the head portion has a larger diameter than the shaft portion. 1. A method for manufacturing a stepped member having a shaft portion and a head portion provided at an axial end of the shaft portion , the head portion having a larger diameter than the shaft portion , the method comprising:radially enlarging an intermediate portion of a shaft workpiece while compressing the shaft workpiece in an axial direction of the shaft workpiece, the radially enlarging including applying alternating load to the intermediate portion of the shaft workpiece in a direction intersecting the axial direction in a state in which pressure that compresses the shaft workpiece in the axial direction is applied to both ends of the shalt workpiece; anddividing the shaft workpiece into two stepped members, the dividing including cutting the enlarged intermediate portion of the shaft workpiece in a direction perpendicular to the axial direction.2. The method according to claim 1 , wherein the shaft workpiece has a pipe shape claim 1 , and wherein the cutting includes cutting the enlarged intermediate portion of the shaft workpiece at a center of the intermediate portion such that the intermediate portion is divided equally with respect to the axial direction.3. The method according ...

SPLINED POWER TRANSMISSION COMPONENTS MADE USING HEAT-ASSISTED CALIBRATION PROCESS AND METHOD OF FORMING SUCH SPLINED POWER TRANSMISSION COMPONENTS

A method for forming a component utilizing ultra-high strength steel and components formed by the method. The method includes the step of providing a flat blank of ultra-high strength 22MnB5 steel. The next step of the method is cold forming the flat blank into an unfinished shape of a component while the blank is in an unhardened state. Then, heating the unfinished shape of the component and generating a spline form thereon. The method proceeds by forming a finished shape of the component using a quenching die resulting in a fine-grained martensitic component material structure and enabling net shape processing to establish final geometric dimensions of the component. 1. A method for forming splines in a component utilizing ultra-high strength steel including the steps of:providing a flat blank of ultra-high strength steel;forming the flat blank into an unfinished shape of a component;heating the unfinished shape of the component; andforming a finished shape of the component including splines using a quenching die having a radially-movable segmented tool.2. The method of claim 1 , further comprising:providing an inert atmosphere; andheating the unfinished shape of the component in the inert atmosphere.3. The method of claim 2 , wherein the step of heating the unfinished shape of the component in the inert atmosphere is further defined as heating the unfinished shape of the component in the inert atmosphere at a temperature between 850° C. and 950° C.4. The method of claim 1 , wherein the step of heating the unfinished shape of the component is further defined as heating the unfinished shape of the component at a temperature between 850° C. and 950° C.5. The method of claim 1 , wherein the step of forming the flat blank into an unfinished shape of a component is further defined as forming the flat blank into a cup-shaped preform without splines.6. The method of claim 5 , further comprising:installing the cup-shaped preform on a fixed mandrel, wherein the fixed ...

Method of Manufacturing Two Tubes Simultaneously and Machine for Use Therein

A method is used to manufacture a tube having a hollow interior for housing an axle shaft. The tube is formed in a single machine having a fixed base and a single press structure movable toward the fixed base. The single machine includes first and second die assemblies coupled to the fixed base and first and second mandrels coupled to the single press structure. The method includes the steps of placing a billet into the first die assembly, pressing the billet into the first die assembly with the first mandrel to producing a pre-formed billet, and moving the pre-formed billet from the first die assembly to the second die assembly. THE method further includes the steps of pressing the pre-formed billet into the second die assembly with the second mandrel to elongate the pre-formed billet and form a hollow interior therein to produce an extruded tube. 141-. (canceled)42. A method of manufacturing a tube having a hollow interior for housing an axle shaft , which transmits rotational motion from a prime mover to a wheel of a vehicle , with the tube formed in at least a first machine and a second machine each having a fixed base and a press structure movable toward the fixed base , a first die assembly coupled to the fixed base of the first machine , a second die assembly coupled to the fixed base of the first machine and further defined as an initial stage second die assembly and a later stage second die assembly , a first mandrel coupled to the press structure of the first machine , a second mandrel coupled to the press structure of the first machine and spaced from the first mandrel further defined as an initial stage second mandrel and a later stage second mandrel , a third die assembly coupled to the fixed base of the second machine , and a third mandrel coupled to the press structure of the second machine , said method comprising the steps of:placing a billet into a cavity of the first die assembly;pressing the billet into the cavity of the first die assembly with ...

VEHICLE WHEEL HAVING A HAMMER-DEBOSSED TEXTURE

Wheels for use on vehicles and methods of manufacturing vehicle wheels are described in the present disclosure. According to one embodiment, a method includes a step of manufacturing a wheel that includes a rim, a center disk, and a plurality of spokes. The rim may include a substantially-cylindrical barrel adapted to seal a tubeless tire. The center disk may include a central bore adapted for engagement with an axle of a vehicle. Also, the plurality of spokes may be adapted to connect the center disk to the rim. The method further includes the step of deforming outwardly-facing surfaces of the spokes using one or more hammering or punching instruments. 1. A vehicle wheel , comprising:a rim having a substantially-cylindrical barrel adapted to seal a tubeless tire;a center disk having a central bore adapted for engagement with an axle of a vehicle; anda plurality of spokes adapted to connect the center disk to the rim;wherein the plurality of spokes include a plurality of outwardly-facing hammered or punched surfaces formed by a metalworking process utilizing one or more hammering or punching instruments.2. The wheel of claim 1 , wherein the metalworking process includes one or more of an embossing process and a debossing process.3. A method of forming a vehicle wheel claim 1 , comprising the steps of:providing a wheel that includes a rim, a center disk, and a plurality of spokes, where the rim has a substantially-cylindrical barrel adapted to seal a tubeless tire, where the center disk has a central bore adapted for engagement with an axle of a vehicle, and where the plurality of spokes are adapted to connect the center disk to the rim; anddeforming one or more outwardly-facing surfaces of the plurality of spokes using one or more hammering or punching instruments.4. The method of claim 3 , further comprising the step of plating the one or more outwardly-facing surfaces of the plurality of spokes with an overlaid layer of material including at least one of chromium ...

BAR MATERIAL TRANSFER METHOD AND CONVEYOR

[Object] To provide a bar material transfer method of, even in the case where an entire length of a bar material serving as a workpiece is short, accurately inserting the bar material from one end thereof into a predetermined positioning hole. 1. A conveyor comprising gripping means having a pair of grippers which is capable of expanding and contracting , the conveyor grips a bar material held by holding means on one end part side of the bar material more than a portion held by the holding means with the pair of grippers of the gripping means , to receive the bar material from the holding means , and conveys the received bar material to a predetermined positioning hole , to insert the bar material from the one end part of the bar material into the predetermined positioning hole , the conveyor whereinfirst and second gripping means are included so as to be installed adjacent to one another as the gripping means,respective pairs of grippers in the first and second gripping means are disposed so as to be the same in expanding and contracting direction of the respective pairs of grippers, and face one another,the first gripping means is set to grip the bar material on the one end part side of the bar material more than a portion held by the holding means when the pair of grippers of the first gripping means receives the bar material from the holding means, and to release the gripping of the bar material when the bar material is inserted from the one end part of the bar material into the predetermined positioning hole, andthe second gripping means is set to grip the portion, which has been held by the holding means, of the bar material after the pair of grippers of the second gripping means receives the bar material, and before the bar material is inserted from the one end part of the bar material into the predetermined positioning hole.2. The conveyor according to comprising:first and second gripper adjusting means for respectively adjusting expanding and contracting ...

INTERNALLY COOLED VALVE HAVING A VALVE BOTTOM, AND METHOD FOR THE PRODUCTION THEREOF

A method for manufacturing an internally cooled valve (), includes providing a valve body () having a valve stem () that ends in a valve head (). The valve body () has a cavity () that is open toward the valve head () and with a valve base element () by friction welding the valve base element () to the valve head (). The valve bottom element () is preferably a sintered component. 1. A method for manufacturing an internally cooled valve , comprisingproviding a valve body having a valve stem that ends in a valve head,wherein the valve body has a cavity that is open toward the valve head,providing a valve base element, andclosing the cavity with the valve base element by friction welding the valve base element to the valve head,whereinthe valve base element and/or the valve body have/has an engagement structure with which the valve base element and/or the valve body are/is centrally clamped, and/or a torque is transmitted to the valve base element and/or to the valve body,and wherein thevalve base element is fabricated as a green compact or brown compact by metal powder injection molding and sintered and wherein the valve base element is provided with a cooling rib structure and/or flow-influencing structure on a surface facing the cavity.2. The method according to claim 1 , wherein the friction welding is carried out as inductive friction welding.3. The method according to claim 1 , further comprising at least partially filling the cavity with a coolant before the cavity is closed by friction welding.4. The method according to claim 1 , wherein the engagement structure is subsequently removed and/or ablated.5. The method according to claim 1 , wherein the valve base element and the valve body have a welding surface contour claim 1 , which in the friction welding operation produces a weld expulsion in the cavity in a desired shape of a cooling rib.6. The method according to claim 5 , wherein an outer portion of the weld expulsion is subsequently removed.7. An ...

CHECK VALVE, AIR-CONDITIONING APPARATUS, AND METHOD OF MANUFACTURING CHECK VALVE

A check valve includes a container body and a valve body. The container body includes a cylindrical valve-body housing portion, an inlet portion, an outlet portion, and a valve seat. The inlet portion is formed at one end portion of the valve-body housing portion, and the outlet portion is formed at the other end portion of the valve-body hosing portion. The valve seat is protruded at an inner circumferential surface of the valve-body housing portion. The valve body is provided in the container body and movable in the axial direction thereof.

Appliance for Making Isotropically Finished Seal Ring of Seal Assembly for Machine

A seal ring for a seal assembly includes a body and a seal flange. The body is generally cylindrical, extending along a longitudinal axis between a load end and a seal end. The seal flange is disposed adjacent the seal end of the body, projecting radially in a circumscribing manner from the body. The seal flange includes a sealing face having a sealing band for sealing contact with a mating seal ring. A layer of coating composition formulated to help increase the corrosion resistance of the seal ring is applied to at least the body. A mask is applied to the seal ring to cover at least a portion of the seal ring having the layer of coating composition applied thereto such that the sealing band remains exposed. The sealing band is polished by an isotropic finishing process. The mask is removed after the sealing band is isotropically polished. 114-. (canceled)15. An appliance for use in a method of making an annular seal ring of a seal assembly , the annular seal ring having a load end , a seal end , a loading surface , and a sealing face , the loading surface extending axially between the load end and the seal end , the sealing face extending radially at the seal end , and the sealing face having a sealing band , the appliance comprising:a masking member, the masking member defining a circumferential groove;wherein the circumferential groove being configured such that the annular seal ring is disposable within the circumferential groove with the load end being within the circumferential groove, the loading surface being covered by the masking member, and the sealing band being exposed.16. The appliance according to claim 15 , wherein the masking member is made from an acid-resistant material that is non-reactive with a predetermined polishing media for an isotropic finishing process.17. The appliance according to claim 15 , wherein the masking member includes a first masking part and a second masking part claim 15 , the first masking part including an inner sidewall ...

Hollow engine valve and manufacturing method therefor

The present invention provides a hollow engine valve achieving high durability while suppressing an increase in manufacturing cost, and a manufacturing method therefor. A manufacturing method for a hollow engine valve comprises: a step of forming, by forging, a solid round bar as a material of a valve main body into a valve main body intermediate member provided with a semifinished product valve head portion corresponding to a valve head portion and a solid stem portion corresponding to a valve stem portion; a step of performing cutting process with respect to the valve main body intermediate member across the solid stem portion and the semifinished product valve head portion for forming a semifinished product hollow hole with a bottom corresponding to a hollow hole, thereby forming the valve main body intermediate member into a valve main body semifinished product provided with the semifinished product valve head portion and a semifinished product valve stem portion; and a step of performing necking process with respect to the valve main body semifinished product for squeezing the semifinished product valve stem portion step by step, thereby reducing the diameter of the semifinished product valve stem portion and increasing the length of the stem of the semifinished product valve stem portion, to form the valve main body semifinished product into the valve main body.

METHODS OF FORMING COMPONENTS UTILIZING ULTRA-HIGH STRENGTH STEEL AND COMPONENTS FORMED THEREBY

A component and method for forming the component utilizing ultra-high strength steel is provided. The method includes the steps of providing a blank of ultra-high strength steel and forming the blank into an unfinished component. Next, heating the unfinished component and moving an inner tooling member and an outer tooling member relative to one another to sandwich the heated component therebetween. Further, moving a punch member from a withdrawn, unactuated position to an extended, actuated position to contact the component while sandwiched between the inner and outer tooling members to form a feature including at least one of a thickened region having an increased thickness relative to an adjacent region, a recessed annular groove, a recessed pocket, a through hole, a flange, a through hole having a tab extending outwardly therefrom, or spline teeth. Then, quenching the feature. 1. A method for forming a component utilizing ultra-high strength steel including the steps of:providing a blank of ultra-high strength steel;forming the blank into an unfinished component;heating the unfinished component;moving an inner tooling member and an outer tooling member relative to one another to sandwich the heated component therebetween;moving a punch member from a withdrawn, unactuated position to an extended, actuated position to contact the component while sandwiched between the inner and outer tooling members to form a feature including at least one of a thickened region having an increased thickness relative to an adjacent region, a recessed annular groove, a recessed pocket, a through hole, a flange, a through hole having a tab extending outwardly therefrom, or spline teeth; andquenching the feature.2. The method as set forth in claim 1 , further including maintaining the inner tooling member in a stationary position and moving the outer tooling member from a withdrawn claim 1 , unactuated position to an extended claim 1 , actuated position to sandwich the heated ...

PRODUCTION METHOD OF BATHROOM HARDWARE SHELLS

A method that includes heating a bar having an outer diameter and a length to a first temperature for a first time; extruding the heated bar to form a hollow blank having a wall thickness; forming a semi-finished blank by closing one end; bending the semi-finished blank to have an angle between first and second parts of the semi-finished blank; placing the bent semi-finished blank in a die, which is heated to a second temperature; forming a shell by injecting a gas onto or into the bent semi-finished blank after closing the die through a gas inlet in the die at a pressure for a second time, which causes the bent semi-finished blank to fit a cavity of the bathroom hardware shell shaping die; removing the shell from the die and forming a water faucet hole therein; and plating an outer surface of the shell with a coating. 1. A method of producing bathroom or kitchen hardware shells , comprising:providing a bar having an outer diameter and a length;heating the bar to a first temperature for a first time;extruding the heated bar to form a hollow blank having a substantially uniform wall thickness;forming a semi-finished blank by closing one end of the hollow blank;bending the semi-finished blank to have an angle between first and second parts of the semi-finished blank;placing the bent semi-finished blank in a bathroom hardware shell shaping die, wherein the bathroom hardware shell shaping die is heated to a second temperature;forming a shell by injecting a gas onto or into the bent semi-finished blank, after closing the bathroom hardware shell shaping die, through a gas inlet in the bathroom hardware shell shaping die at a pressure for a second time, which causes the bent semi-finished blank to fit a cavity of the bathroom hardware shell shaping die;removing the shell from the bathroom hardware shell shaping die and forming a water faucet hole therein; andplating an outer surface of the shell with a coating.2. The method of claim 1 , wherein providing the bar comprises: ...

METHOD FOR PRODUCING A HOLLOW VALVE FOR INTERNAL COMBUSTION ENGINES

A method for producing a valve body of a hollow valve includes providing a workpiece blank or semi-finished product, spin extruding the workpiece to produce a preform having a cup with a hollow shape formed by the cup wall. A hollow valve produced by this method is also provided. 111-. (canceled)12. A method for producing a valve body of a hollow valve , comprising the following steps:providing a workpiece blank;spin extruding the workpiece to create a preform, which has a cup comprising a hollow mold formed by the cup wall;flow forming of the preform after the spin extrusion to provide a reduced shaft diameter, wherein,there is a radial and an axial offset between at least three flow forming rollers during the flow forming step, wherein a radial distance of the flow forming rollers from a central axis is different, wherein a first of the flow forming rollers first machines the workpiece, said first flow-forming roller having a largest radial distance from the central axis, followed by another second flow forming roller having a second-largest radial distance from the central axis.13. The method according to claim 12 , whereinthe spin extruding stop is carried out by means of a molding die, which is pushed against the workpiece with an axial force, and whereinthe at least three flow forming rollers are pushed onto the workpiece with a radial force.14. The method according to claim 13 , whereinthe preform has a valve head/plate and a valve shaft comprising a shall diameter, which is reduced during flow forming compared to the valve plate.15. The method according to claim 14 , whereinthe workpiece is received in a workpiece holder at a spindle and rotates around a longitudinal axis of the holder, and the molding die rotates synchronously to the spindle.16. The method according to claim 15 , whereinthe at least three flow forming rollers and the molding die synchronously carry out an axial movement.17. The method according to claim 12 , wherein the method is carried ...

Automobile undercarriage component

An automobile undercarriage component has at least three elongated arms, each including a web and a rib having an inner wall surface. One of the three elongated arms is a first arm having a first one of the ribs and at least one of the three elongated arms is a second arm having a second one of the ribs. For each of the second ones of the ribs, the leading end of the respective second one of the ribs has a width in the direction parallel to the plane of the web and transverse to the direction of elongation of the arm which is narrower than the width of a leading end of the first one of the ribs, as an inner wall surface is disposed closer to an opposing outer wall surface in the respective second one of the ribs as compared to the first one of the ribs.

POPPET VALVE

A poppet valve includes: a valve body comprising a valve stem body, a valve head body with a valve combustion face, and a valve fillet body interconnecting the valve stem body and the valve head body. The valve fillet body surface has an increased thermal resistance compared to the valve combustion face. 1. A poppet valve , comprising:a valve body comprising a valve stem body, a valve head body with a valve combustion face, and a valve fillet body interconnecting the valve stem body and the valve head body,whereinthe valve fillet body surface has an increased thermal resistance compared to the valve combustion face.2. The poppet valve according to claim 1 , wherein a thermal barrier coating is arranged on the valve fillet body to provide an increased thermal resistance.3. The poppet valve according to claim 2 , wherein the thermal barrier coating comprises ferrite particles arranged by crystal growth claim 2 , a silica based inorganic compound claim 2 , spray painting of hollow ceramic balls claim 2 , or a thermal spray of Yttria-stabilized zirconia.4. The poppet valve according to claim 2 , wherein a bond coating is interposed between the thermal barrier coating and the valve fillet body.5. The poppet valve according to claim 2 , wherein a coating thickness is between 0.1 mm and 0.6 mm.6. The poppet valve according to claim 1 , wherein the valve combustion face is uncoated.7. The poppet valve according to claim 1 , wherein a cavity is arranged in the valve body claim 1 , andwherein the cavity is filled with a heat conducting material.8. A method for manufacturing the poppet valve according to claim 1 , which method comprises the steps of:providing the poppet valve having the valve body comprising the valve stem body, the valve head body with the valve combustion face, and a valve fillet body interconnecting the valve stem body and the valve head body; andusing either atmospheric plasma spraying (APS) or high velocity oxygen fuel spraying (HVOF) to arrange a thermal ...

METHOD FOR PRODUCING A CYLINDRICAL COMPONENT

The invention relates to a method for producing a cylindrical component, particularly of turbomachines. In the process, a heated blank is provided. The blank is then formed to create a flat blank (). The flat blank () is next bent and/or rolled to form a cylindrical half-shell (). 1. A method for producing a cylindrical component for turbomachines , comprising the steps of:providing a heated blank;{'b': '2', 'press forming the heated blank to form a flat blank ();'}{'b': 2', '40, 'bending or rolling the flat blank () into a cylindrical half-shell ().'}22. The method according to claim 1 , wherein the flat blank () is substantially rectangular in shape.3213151719. The method according to claim 1 , wherein the flat blank () has a machining allowance on at least one of its contours ( claim 1 , claim 1 , claim 1 , ).4. The method according to claim 3 , wherein the machining allowance is between 0 and 10 mm.518202224262830323412. The method according to claim 1 , wherein at least one rib ( claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , claim 1 , ) and/or one eyelet ( claim 1 , ) is formed in at least one surface () of the blank.6131540. The method according to claim 1 , wherein at least one contact surface ( claim 1 , ) of the cylindrical half-shell () is machined to a final dimension.7. The method according to claim 1 , wherein the step of press forming is accomplished by drop forging.8. The method according to claim 1 , further comprising the step of:{'b': '40', 'providing at least two cylindrical half-shells ();'}{'b': 40', '40, 'forming the at least two cylindrical half-shells () into a housing; the two half-shells () having identical outer contours after the step of press forming is complete.'}9. The method according to claim 8 , further comprising the step of:providing the housing as a cylindrical component in a turbomachine. The invention relates to a method for producing a cylindrical component in accordance with the present invention.Blanks for cylindrical ...

PROCESS FOR MANUFACTURNIG AN INTERNALLY COOLED VALVE HAVING A COOLING STRUCTURE, AND VALVE MANUFACTURED BY SAID METHOD

The invention relates to a process for manufacturing an internally cooled valve, said process involving providing an externally at least partly cylindrical semifinished product (), creating or increasing the depth of an at least partly cylindrical cavity in the semifinished product () in a hot-working procedure using a male die such that a valve blank is formed; during the hot-working procedure, a recess on an end face of the male die forms a structure on the bottom of the cavity. 111-. (canceled)12. A method for producing a valve blank for an internally cooled valve , comprising providing a semifinished product having an at least partially cylindrical exterior , and creating an at least partially cylindrical cavity in the semifinished product by heat forming , using a stamp , thus producing a valve blank , wherein the hot forming encompasses backward extrusion , wherein a structure is formed on a base of the cavity during the hot forming via a recess at n end face of the stamp.13. The method for producing a valve blank according to claim 12 , wherein the structure includes cooling ribs that extend in a circular or star shape.14. The method for producing a valve blank according to claim 12 , wherein the structure includes pins claim 12 , cones claim 12 , or truncated cones that act as cooling elements.15. The method for producing a valve blank according to claim 12 , wherein the structure includes blades that are able to set a coolant in a valve into rotation.16. The method for producing a valve blank according to claim 12 , wherein a valve head is formed onto the valve blank during the hot forming.17. A method for manufacturing an internally cooled valve claim 16 , wherein after the valve head is formed according to claim 16 , a diameter of the valve blank next to the valve head is reduced in the axial direction in order to form a valve stem.18. The method for manufacturing an internally cooled valve according to claim 17 , wherein the valve stem is formed by ...

HOLLOW POPPET VALVE AND MANUFACTURING METHOD THEREFOR

A poppet valve, in particular a hollow poppet valve, includes: a valve stem; a valve body having along a longitudinal axis, a first end with a neck portion to which the valve stem is coaxially arranged and having along a longitudinal axis a second end with a first conical contact face portion, the valve body including a cavity with a first opening towards the first end and a second opening towards the second end; and a valve cap coaxially arranged to the valve body on the second end for closing the second opening, the valve cap having a second conical contact face portion to form together with the first conical contact face portion a valve head contact face. 1. A poppet valve , in particular a hollow poppet valve , comprising:a valve stem;a valve body having along a longitudinal axis, a first end with a neck portion to which the valve stem is coaxially arranged and having along a longitudinal axis a second end with a first conical contact face portion, the valve body comprising a cavity with a first opening towards the first end and a second opening towards the second end; anda valve cap coaxially arranged to the valve body on the second end configured to close the second opening, the valve cap having a second conical contact face portion to form together with the first conical contact face portion a valve head contact face.2. The poppet valve according to claim 1 , wherein both the first and second conical contact face portion comprise a circumferential groove portion to form together a circumferential face groove claim 1 , andwherein a layer of seat facing material is arranged in the circumferential face groove.3. The poppet valve according to claim 1 , wherein the valve cap is welded to the valve body claim 1 , which weld is arranged between the first and second conical contact face portions.4. The poppet valve according to claim 1 , wherein the valve cap comprises a cylindrical upright wall claim 1 , which extends into the second opening of the cavity and is ...

SUPPORT FOR RECIPROCATING PUMP

A skid for supporting a reciprocating pump assembly, the reciprocating pump assembly including a power end frame assembly having a pair of end plate segments and a plurality of middle plate segments disposed between the end plate segments. The end plate segments each have at least a pair of feet and the middle plate segments each having at least one foot. The skid includes a base and a plurality of pads extending from the base. At least a portion of the plurality of pads correspond to the end plate segment feet and at least another portion of the plurality of pads correspond to the at least one foot of each middle plate segment. 1. A skid for supporting a reciprocating pump assembly , the reciprocating pump assembly comprising a power end frame assembly having a pair of end plates and a plurality of middle plates disposed between the end plates , the end plates each having at least a pair of feet and the middle plates each having at least one foot , the skid comprising:a base having a pair of side segments including a top wall, a bottom wall, and a sidewall extending between the top and bottom walls forming a c-shaped channel;at least one transverse segment coupled to and extending between the pair of side segments;a plurality of spaced apart gussets disposed within the channels, the gussets extending between and connecting to the bottom wall and the top wall of the c-shaped channel; anda plurality of spaced apart pads extending from the base, the plurality of pads corresponding to the end plate feet and at least another portion of the plurality of pads corresponding to the at least one foot of each middle plate.2. The skid of claim 1 , wherein the plurality of pads have different thicknesses to accommodate bending of the base such that a top surface of each of the plurality of pads lies in substantially the same plane.3. The skid of claim 1 , wherein the spaced apart gussets are vertically secured within the channel so as to perpendicularly intersect the top and ...

METHOD FOR THE PRODUCTION OF HOLLOW CHAMBER VALVES

Disclosed is a method for the production of a valve body of a hollow chamber valve, said method comprising: providing a bowl-shaped semi-finished product having an annular wall, which surrounds a hollow chamber, and a bottom portion, followed by a lengthening of the wall and a final reducing of an outer diameter of the annular wall in order to obtain a predetermined valve shaft outside diameter of a valve that is to be produced. Further disclosed is a hollow chamber valve produced by means of said method. 110-. (canceled)11. A method for manufacturing a valve body of a hollow valve , comprising the following steps:providing a bowl-shaped semi-finished product, the semi-finished product having an annular wall that surrounds a cylindrical cavity of the semi-finished product, and a base section;forming a valve had from the base section;lengthening the annular wall in an axial direction by forming, wherein a mandrel is inserted into the cavity during the forming;reducing an outer diameter of the annular wall by rotary swaging to obtain a valve stem of the finished valve boy having a predetermined outer diameter (D);wherein multiple mandrels having different diameters are used during the lengthening of the annular wall.12. The method according to claim 11 , wherein the provision of the bowl-shaped semi-finished product includes:providing an at least partially cylindrical blank; andforming the bowl-shaped semi-finished product from the blank.13. The method according to claim 12 , wherein the forming of the bowl-shaped semi-finished product takes place via a hot forming process comprising backward can extrusion or forging.14. The method according to claim 11 , wherein the forming of the valve head takes place via a hot forming process comprising backward can extrusion or forging.15. The method according to claim 11 , wherein the lengthening of the annular side wall takes place via rotary swaging with a mandrel claim 11 , or ironing via a mandrel.16. The method according to ...

METHOD FOR PRODUCING A HOLLOW VALVE WITH AN OPTIMISED INTERIOR STEM GEOMETRY FOR INTERNAL COMBUSION ENGINES

A method for producing a valve body of a hollow valve with optimised interior stem geometry includes a preform with a valve plate and a tubular wall surrounding a cavity. Flow forming the tubular wall over a flow-forming mandrel, which is inserted into the cavity to enlarge a length of the tubular wall. An interior area of the tubular wall is embossed with a structure either due to the fact that the flow-forming mandrel is a structuring mandrel having a surface structure, or alternatively, because the method includes a further step of reducing an outer diameter of the tubular wall by swaging or drawing and ironing over a structuring mandrel. Furthermore, a hollow valve is produced by this method. 115-. (canceled)16. A method for producing a valve body of a hollow valve with optimized interior stem geometry , comprising the steps:providing a preform with a valve head and a tubular wall surrounding a cylindrical cavity;flow forming the tubular wall over a mandrel, which is interested into the cavity, to enlarge a length of the tubular wall,wherein multiple forming rollers are used in the flow forming process;a structuring mandrel having a non-cylindrical surface structure, and wherein the mandrel is the multiple forming rollers are offset radially and axially to each other during the flow forming process.17. The method according to claim 16 , wherein providing the preform comprises:providing a bowl-shaped semi-finished product, wherein the semi-finished product has the tubular wall surrounding the cylindrical cavity of the semi-finished product and has a bottom section; andforming the valve head from the bottom section.18. The method according to claim 17 , wherein the valve head is formed impact extrusion or forging.19. The method according to claim 17 , wherein providing the bowl-shaped semi-finished product comprises:providing an at least partially cylindrical blank; andforming the bowl-shaped semi-finished product from the blank.20. The method according to claim ...

Lash adjuster and method of making same

A method of manufacturing a lash adjuster body for use in a lash adjuster assembly can include forming a lash adjuster body to an as-formed condition including an outer cylindrical surface and an inner cylindrical surface. The inner cylindrical surface can have a leak down portion and a blind bore. The method can also include imparting a wear resistant surface layer to at least the leak down portion of the inner cylindrical surface with a sub-critical temperature process. The method can also include preserving the leak down portion in the as-formed condition during imparting of the wear resistant surface layer.

COVER WITH OIL STORAGE FUNCTION FOR A HOUSING OF AN ELECTROHYDRAULIC VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE

A cover () with an integrated oil storage function for a housing of an electrohydraulic valve drive for at least one intake valve of an internal combustion engine. According to the invention, an oil storage cavity () of each cylinder of the internal combustion engine is directly attached to the cover (). 1. A cover assembly with integrated oil storage for a housing of an electrohydraulic valve drive for at least one intake valve of an internal combustion engine , the cover assembly comprising a cover plate and a separate oil storage cavity attached directly on the cover plate for each cylinder of the internal combustion engine.2. The cover assembly according to claim 1 , wherein the cover plate is formed of stamped sheet steel.3. The cover assembly according to claim 1 , wherein the oil storage cavity is formed of deep-drawn sheet steel.4. The cover assembly according to claim 2 , wherein the oil storage cavity is soldered onto the cover plate.5. The cover assembly according to claim 1 , wherein the cover plate and the oil storage cavity are made from plastic.6. The cover assembly according to wherein at least one cover plate opening is provided on the cover plate underneath each of the oil storage cavities.7. The cover assembly according to claim 6 , further comprising a recess in an area of the oil storage cavity claim 6 , and the cover plate opening is provided at a lowest point of the recess.8. The cover assembly according to claim 7 , wherein the recess has a groove shape or funnel shape.9. The cover assembly according to claim 1 , wherein the oil storage cavity has a ventilation opening on a top side thereof.10. A method for producing a cover assembly with integrated oil storage for a housing of an electrohydraulic valve drive of an internal combustion engine claim 1 , comprising the following steps:stamping a cover plate from sheet steel,embossing formed elements on the sheet steel,producing at least one cover plate opening for each oil storage cavity in the ...

WHEEL FOR A COMMERCIAL VEHICLE, AND USE THEREOF

A commercial vehicle wheel including a rim configured to hold a tire and a wheel disc attached to the rim with an attachment region for removable attachment to a wheel carrier. The wheel disc is formed from at least two parts, which are joined together. At least one of the parts consists of a multiphase steel alloy or a heat-treatable steel alloy. 111.-. (canceled)12. A commercial vehicle wheel , comprising:a rim configured to hold a tire, anda wheel disc attached to the rim, the wheel disc including an attachment region configured to removably attach to a wheel carrier, wherein the wheel disc is formed from at least two parts, which are joined together,wherein at least one of the wheel disc parts consists of a multiphase steel alloy or a heat-treatable steel alloy.13. The commercial vehicle wheel of claim 12 , wherein the multiphase steel alloy is a dual-phase steel claim 12 , a complex-phase steel claim 12 , a ferrite-bainite steel or a martensite-phase steel alloy claim 12 , wherein the structure of the multiphase steel alloy consists of at least two of the phases: ferrite claim 12 , bainite claim 12 , austenite or martensite claim 12 , or the heat-treatable steel alloy is a hot forming steel or air hardening steel alloy claim 12 , wherein the structure of the heat-treatable steel alloy consists predominantly of martensite.14. The commercial vehicle wheel of claim 13 , wherein the multiphase steel alloy has a tensile strength of at least 500 MPa.15. The commercial vehicle wheel of claim 13 , wherein the heat-treatable steel alloy has a tensile strength of at least 700 MPa.16. The commercial vehicle wheel of claim 13 , wherein more than 90% of the structure of the heat-treatable steel alloy consists of martensite.17. The commercial vehicle wheel of claim 12 , wherein the at least two parts each consist of a multiphase steel alloy or a heat-treatable steel alloy.18. The commercial vehicle wheel of claim 12 , wherein the wheel disc is substantially shell-shaped ...

METHOD OF MANUFACTURING A DRUM OF AN AXIAL PISTON MACHINE

The present invention relates to a method of manufacturing a drum of an axial piston machine by machining a cylindrical round metal, with the machining comprising a forging and with at least one structural element of the drum being produced or prefabricated by the forging. 1. A method of manufacturing a drum of an axial piston machine by machining a cylindrical blank , whereinthe machining comprises a forging; andat least one structural element of the drum is produced or prefabricated by the forging.2. A method in accordance with claim 1 , wherein the machining comprises the manufacture of a preforged blank from the round metal claim 1 , and the preforged blank is then further machined in a cutting manner.3. A method in accordance with claim 1 , wherein the forging is a drop forging process.4. A method in accordance with claim 13 , wherein the die division is arranged in a region of the preforged blank that is removed from the blank as part of the further cutting machining.5. A method in accordance with claim 1 , wherein the forging is a cold forging process or a semi-hot forging process claim 1 , with the temperature of the round metal preferably being below 950° C.6. A method in accordance with claim 1 , wherein the structural element produced or prefabricated by forging is a neck region that projects from an end face of the drum in the axial direction and surrounds the region of the center bore.7. A method in accordance with claim 1 , wherein a structural element produced or prefabricated by forging is a section of the center bore.8. A method in accordance with claim 1 , wherein a structural element produced or prefabricated by forging is a toothed ring at the center bore or at the jacket surface.9. A method in accordance with claim 1 , wherein the structural element produced or prefabricated by forging is a depression at an end face of the drum and/or a marginal web surrounding such a depression.10. A method in accordance with claim 1 , wherein a structural ...

WEBBED IDLER WHEEL ASSEMBLY FOR TRACKED MACHINES

An idler wheel for a tracked machine can comprise a cylindrical hub defining a central axis, an annular tread disposed concentrically about the cylindrical hub, a pair of side plates connecting the cylindrical hub and the annular tread, and a webbing connecting the cylindrical hub and the annular tread between the pair of side plates. A method for manufacturing an idler wheel comprises assembling a cylindrical hub, an annular tread, first and second side plates and at least one web. 1. An idler wheel for a tracked machine , the idler wheel comprising:a cylindrical hub defining a central axis;an annular tread disposed concentrically about the cylindrical hub;a pair of side plates connecting the cylindrical hub and the annular tread; anda webbing connecting the cylindrical hub and the annular tread between the pair of side plates.2. The idler wheel of claim 1 , wherein the pair of side plates comprises first and second side plates claim 1 , the first and second side plates each comprising:a round disk-shaped body; anda hub bore located at a center of the disk-shaped body.3. The idler wheel of claim 1 , wherein the webbing comprises a pair of webs comprising first and second webs claim 1 , the first and second webs each comprising:a radially extending rim portion; anda web portion extending outwardly from the rim portion at an oblique angle to the central axis.4. The idler wheel of claim 3 , wherein the cylindrical hub comprises:a sleeve portion extending into the pair of side plates; anda first shoulder radially extending from the sleeve portion between the pair of side plates, the pair of webs radially extending from the first shoulder.5. The idler wheel of claim 4 , wherein the cylindrical hub further comprises:a second shoulder radially extending from the first shoulder, the pair of webs being axially positioned between the second shoulder and the pair of side plates.6. The idler wheel of claim 5 , wherein the pair of side plates claim 5 , the pair of webs and the ...

METHOD OF MANUFACTURING A VALVE FOR AN INTERNAL COMBUSTION ENGINE

A method of manufacturing a valve for an internal combustion engine, comprises: (i) a primary step of forging a bulging portion at one end of a rod material to form a generally disk-shape valve head of the valve having a tapered periphery; (ii) an thickness adjustment step of machining an excessively thick portion of the valve head; and (iii) a secondary step of forging a peripheral region of the valve head to create radial slip deformations therein to form a valve face of the valve head. In the step of thickness adjustment, only the front end of the disk-shape valve head is machined without harming dense grain flow lines induced in the tapered face () in the primary forging while advantageously saving the valve material and reducing thickness adjustment time. In the secondary forging, the hardness of the valve face is further enhanced. 1. (canceled)2. A method of manufacturing a valve for an internal combustion engine , comprising:a step of primary forging in which a bulging portion at one end of a rod material is forged to form a generally disk-shape valve head of the valve by means of a primary forging die unit having a first die and a first punch;a step of adjusting the thickness of the disk-shape valve head formed in the step of primary forging by machining an excessively thick portion thereof; anda step of secondary forging in which a periphery of the disk-shape valve head is forged to create therein radial slip deformations by means of a secondary forging die unit having a second die and a second punch, the periphery being associated with a valve face that comes into contact with a valve seat of the internal combustion engine,the method characterized in thatthe primary die unit is provided on the die thereof for forging the valve head with a peripheral taper forming face for forming a tapered face associated with the valve face; anda predetermined tapered face that corresponds to the valve face is formed in the step of primary forging along the periphery of ...

METHODS AND APPARATUS TO PRODUCE HIGH PERFORMANCE AXISYMMETRIC COMPONENTS

A material and method for manufacturing components. The method includes squeeze casting the material into a component of a desired shape and flow-forming the component that has been squeeze cast to refine the shape of the component. The method also includes heat treating the component to enhance the microstructure of the component and machining the component to further refine the shape. 1. A method for manufacturing components , said method comprising:squeeze casting a material into a component with a desired shape, wherein the material is a liquid and is poured into a mold and cooled under pressure;flow-forming the component that has been squeeze cast to refine the shape of the component;heat treating the component; andmachining the component to further refine the shape of the component.2. The method according to wherein the material is an alloy that includes 3-6 wt. % Si content and 2-5 wt. % Cu+Mg+Zn content.3. The method according to wherein squeeze casting the material creates a component with a refined microstructure that exhibits strength and ductility that is superior to components made from low pressure die casting.4. The method according to wherein flow-forming the component elongates the component and creates a desired annular or ring shape with a desired thickness.5. The method according to further comprising performing a semi-solid forging process after the component has been squeeze cast and before the component has cooled to a completely sold state.6. The method according to further comprising performing an in-die forging process after the component has cooled to a sold state.7. The method according to wherein squeeze casting the material includes rapidly cooling the component to create a refined microstructure of the component that has strength and ductility that is superior to components that are squeeze cast without rapid cooling.8. The method according to wherein rapidly cooling the component is achieved by providing cooling channels in a squeeze ...

POPPET VALVE AND METHOD FOR MANUFACTURING SAME

A method for manufacturing a poppet valve from an intermediate valve products is disclosed. The intermediate valve products have an intermediate valve head ′ with a pressing protrusions . A peak of the pressing protrusions is located in a normal direction X of the seat surface N, which is positioned on a normal line X passing a reference point P set on a line segment K connecting a base point P in an inner side and a base point P in an outer side of the seat surface N; a position of the reference point P is set such that a relation between a length L from the base point P to the reference point P and a length L from the base point P to the reference point P meets a formula of L/L≦0.5. 1. A method for manufacturing a poppet valve , in which a valve head provided in one end of a valve stem in a longitudinal direction has a seat surface in a direction where an outer diameter is widened toward the one end , by forging an intermediate valve product of the poppet valve , wherein:the intermediate valve product of the poppet valve is provided with a large diameter part as the valve head in the one end of the valve stem in the longitudinal direction, wherein the large diameter part is provided with a pressing protrusions in a region serving as the seat surface after forging, the pressing protrusions having a peak positioned in a region in a normal direction of the seat surface on a basis of the seat surface of the forged valve head;in a sectional view, the peak of the pressing protrusions is positioned on a normal line passing a reference point set on a virtual line connecting a base point in an inner diameter side and a base point in an outer diameter side of the seat surface; and{'b': 1', '2, 'claim-text': {'br': None, 'i': L', 'L, '1/2≦0.5\u2003\u2003(1),'}, 'as viewed in an axial direction of a center line of the valve stem, a position of the reference point is set such that a relation between a length L from the base point in the inner diameter side to the reference ...

Method of Manufacturing Engine Valve Intermediate Product with Boss Portion

A method of manufacturing an engine valve intermediate product with a boss portion formed in integral fashion at an outer circumferential surface at an intermediate location on a stem forming portion. The manufacturing method may comprise a stem retaining operation in which an intermediate location of the stem forming portion is retained by a plurality of intermediate jigs removably installable radially with respect to a center of the stem forming portion, and a base end portion is retained by a base end jig. The manufacturing method may further comprise a stem enlarging operation in which compressive forces are applied from both ends of the intermediate product and the boss portion is formed as the intermediate product is made to rotate and alternating loads that cause tensile forces and compressive forces to act in repeated and alternating fashion at the outer circumferential surface of the stem forming portion are applied.

GAS LIFT VALVE

A gas lift valve is provided with increased longevity and reliability for preventing backflow. A wide cylindrical sliding member stabilizes axial movement of a valve element in the gas lift valve. A wide spring around the sliding member biases the valve element toward closure during back flow. The spring is physically supported and guided by the sliding member and protected from gas flow injection by the same sliding member. A one-piece poppet version of the valve element provides a consistent closing seal, and the sliding member protects the valve seat and poppet from full force of an injected gas. A dart version of the valve element includes a hexagonal race for movement of the sliding member, which prevents rotational wear of components and provides a straight flow path for the injection gas with no sharp transitions to wear and no sharp angles to erode. 1. A gas lift valve , comprising:a first port for receiving a gas from a well annulus;a second port for transferring the gas to a well production tube;a valve seat;a poppet valve element for allowing a one-way flow of the gas past the valve seat and for preventing a back flow of the gas;a sliding barrel attached to the poppet valve element to maintain a sealing surface of the poppet valve element in alignment with a sealing surface of the valve seat; anda spring coiled around the outside diameter of the sliding barrel to bias the poppet valve element in a closed position against the valve seat.2. The gas lift valve of claim 1 , wherein the sliding barrel and the spring have a wide cross-sectional diameter substantially the same as a diameter of the poppet valve element to maintain a sealing interface of the poppet valve element and the valve seat in parallel-planar alignment with each other.3. The gas lift valve of claim 1 , wherein the poppet valve element comprises a one-piece member for alignment of a sealing surface of the poppet valve element with a sealing surface of the valve seat.4. The gas lift valve of ...

METHOD FOR PRE-CONDITIONING A KINETIC ENERGY STORAGE SYSTEM

A flywheel energy storage system incorporates various embodiments in design and processing to achieve a very high ratio of energy stored per unit cost. The system uses a high-strength steel rotor rotating in a vacuum envelope. The rotor has a geometry that ensures high yield strength throughout its cross-section using various low-cost quenched and tempered alloy steels. Low-cost is also achieved by forging the rotor in a single piece with integral shafts. A high energy density is achieved with adequate safety margins through a pre-conditioning treatment. The bearing and suspension system utilizes an electromagnet that off-loads the rotor allowing for the use of low-cost, conventional rolling contact bearings over an operating lifetime of several years. 1. A flywheel device comprising:a hermetically sealed cylinder section;a disc-shaped rotor disposed within the cylinder section, wherein the disc-shaped rotor comprises a forged steel alloy; anda lower bearing housing comprising contact bearings disposed between the disc-shaped rotor and a base plate.2. The flywheel device of claim 1 , wherein the disc-shaped rotor comprises martensitic steel.3. The flywheel device of claim 1 , wherein the steel alloy comprises American Iron and Steel Institute 4340 steel.4. The flywheel device of claim 1 , wherein the disc-shaped rotor comprises a thickness-to-diameter ratio of 15% or less.5. The flywheel device of claim 1 , wherein the disc-shaped rotor comprises a thickness of 0.25 m or less.6. The flywheel device of claim 1 , wherein the disc-shaped rotor comprises a tempered steel alloy.7. The flywheel device of claim 1 , wherein the disc-shaped rotor comprises a yield strength of at least about 1200 mega pascals claim 1 , an ultimate tensile strength of at least about 1300 mega pascals claim 1 , and a ductility of at least about 6 percent.8. The flywheel device of claim 1 , wherein the lower bearing housing is outside of the hermetically sealed cylinder section.9. The flywheel ...

INTEGRAL PUSH FITTING AND VALVE WITH INTEGRAL PUSH FITTING AND METHOD OF MANUFACTURING SAME

A push fitting for a valve includes a body having a longitudinal axis along which a fluid can flow, the body defining an opening at a first end of the body. A push fitting assembly at the first end of the body includes a housing. The housing includes a first end which is integrally formed within a wall of the opening at the first end of the body and a crimpable second end which extends longitudinally beyond the first end of the body. The housing also includes a crimpable material such that the second end of the housing is crimpable to capture elements of the push fitting assembly at the first end of the body. 1. A method of making a push fitting , comprising:forming a body having a longitudinal axis along which a fluid can flow, the body defining an opening at a first end of the body, forming the body comprising forming a first end of a housing integrally within a wall of the opening at the first end of the body; andinstalling elements of a push fitting assembly inside the housing.2. The method of claim 1 , wherein forming the body comprises molding the body integrally with the housing.3. The method of claim 2 , wherein forming the body comprises injection molding the body integrally with the housing.4. The method of claim 1 , wherein the housing comprises a metallic material.5. The method of claim 1 , wherein the housing comprises one of copper and a copper alloy.6. The method of claim 1 , wherein forming the body comprises molding one of plastic claim 1 , Noryl claim 1 , and nylon.7. The method of claim 1 , wherein forming the body comprises injection molding one of plastic claim 1 , Noryl claim 1 , and nylon.8. The method of claim 1 , wherein the elements of the push fitting assembly installed inside the housing include a grip ring for gripping a tubular element connectable to the push fitting.9. The method of claim 1 , wherein the elements of the push fitting assembly installed inside the housing include an O-ring for sealing the push fitting.10. The method of ...

HOLLOW ENGINE VALVE AND MANUFACTURING METHOD THEREFOR

The present invention provides a hollow engine valve achieving high durability while suppressing an increase in manufacturing cost, and a manufacturing method therefor. A manufacturing method for a hollow engine valve comprises: a step of forming, by forging, a solid round bar as a material of a valve main body into a valve main body intermediate member provided with a semifinished product valve head portion corresponding to a valve head portion and a solid stem portion corresponding to a valve stem portion; a step of performing cutting process with respect to the valve main body intermediate member across the solid stem portion and the semifinished product valve head portion for forming a semifinished product hollow hole with a bottom corresponding to a hollow hole, thereby forming the valve main body intermediate member into a valve main body semifinished product provided with the semifinished product valve head portion and a semifinished product valve stem portion; and a step of performing necking process with respect to the valve main body semifinished product for squeezing the semifinished product valve stem portion step by step, thereby reducing the diameter of the semifinished product valve stem portion and increasing the length of the stem of the semifinished product valve stem portion, to form the valve main body semifinished product into the valve main body. 16-. (canceled)7. A manufacturing method for a hollow engine valve including a valve main body in which a hollow hole with a bottom is formed through both a valve head portion and a valve stem portion connected to the valve head portion , characterized in that the manufacturing method comprises the steps of:forming, by forging, a solid round bar which is a material of the valve main body into a valve main body intermediate member having a semifinished product valve head portion to be the valve head portion and a solid stem portion to be the valve stem portion;forming the valve main body intermediate ...

MANUFACTURING METHOD OF CASING

A manufacturing method of a casing, the manufacturing method includes a step of manufacturing a plurality of metal members which are components constituting the casing including a casing body having a tubular shape that extends with an axis as a center; a step of arranging the plurality of metal members according to the casing to be formed; and a step of forming the casing by welding the plurality of metal members to each other, in which in the step of manufacturing the metal members, the plurality of metal members are manufactured by at least two kinds of manufacturing methods among forging, steel plate processing, casting, and a fused metal deposition method. 1. A manufacturing method of a casing , the manufacturing method comprising:a step of manufacturing a plurality of metal members which are components constituting the casing including a casing body having a tubular shape that extends around an axis;a step of arranging the plurality of metal members according to a shape of the casing to be formed; anda step of forming the casing by welding the plurality of metal members to each other,wherein in the step of manufacturing the metal members, the plurality of metal members are manufactured by at least two kinds of manufacturing methods among forging, steel plate processing, casting, and a fused metal deposition method.2. The manufacturing method of a casing according to claim 1 ,wherein in the step of manufacturing the metal members, at least one of the metal members is manufactured by the fused metal deposition method.3. The manufacturing method of a casing according to claim 1 ,wherein the casing body includes an upper half body that is on an upper side of the casing body in a vertical direction and a lower half body that is on a lower side of the casing body in the vertical direction, each of which has a semicircular cross section when viewed from an axial direction in which the axis extends,in the step of manufacturing the metal members, a plurality of body ...

METHOD AND APPARATUS FOR MANUFACTURING WHEEL SUPPORTING BEARING UNIT, AND METHOD OF MANUFACTURING VEHICLE

Rotary forging for forming a hub-side face spline is started in a state in which a caulking section is made to come in contact with a flat surface section that is an inner end surface of an inner ring in an axial direction and a chamfer. In addition, a contact portion between an inner end surface of the caulking section in the axial direction and a processing surface of a roll at the beginning of the rotary forging overlaps a contact portion between the caulking section and the flat surface section and the chamfer of the inner ring in the axial direction. 1. A method of manufacturing a wheel supporting bearing unit , the method comprising:a process of forming a caulking section on a hub main body on which an inner ring is fitted, wherein the caulking section is formed by plastically deforming a cylindrical portion formed on an inner end portion of the caulking section in an axial direction outward in a radial direction, the inner ring has an inner end surface in the axial direction that is a flat surface section perpendicular to a central axis, the flat surface section and an inner circumferential surface of the inner ring are continuous with each other via a chamfer, and the caulking section comes in contact with the flat surface section and the chamfer; anda process of forming a hub-side face spline that is a concavo-convex section in a circumferential direction formed on the inner end surface of the caulking section in the axial direction after the caulking section is formed, wherein a roll is rotated about a central axis of the hub main body in a state in which a processing surface, that is a concavo-convex surface in the circumferential direction, formed on a tip surface of the roll in the axial direction having a central axis inclined with respect to the central axis of the hub main body is pressed against the inner end surface of the caulking section in the axial direction, and the hub-side face spline is formed on the inner end surface of the caulking ...

ENGINE VALVE FORGING SYSTEM

An engine valve forging system includes a molding forging die having a circular hole stem molding portion continued to a tip end of a head type molding portion, to mold an engine valve by extrusion-forging a material from the head type molding portion to the stem molding portion by an upper die, and a stem guide forging die which is coaxially disposed to communicate with a tip end of the stem molding portion, and has a guide portion for a stem portion of an engine valve extruded from the stem molding portion, and a plurality of stem curve restraining portions having a shape gradually tapering toward a central shaft line from a rear end portion to a tip end portion are formed continuously along the central shaft line of the guide portion in the guide portion, to be capable of manufacturing high-precision engine valves with less stem curve. 16.-. (canceled)7. An engine valve forging system comprising:a molding forging die for engine valve which has a circular hole shaped stem molding portion which is formed so as to be continued to a tip end of a head type molding portion, and extrusion-forges a material on the head type molding portion to the stem molding portion by an upper die; anda stem guide forging die which communicates with a tip end of the stem molding portion, and is disposed coaxially with the stem molding portion, and which has a stem curve restraining portion for a stem portion of an engine valve extruded from the stem molding portion, whereinthe stem curve restraining portion has a shape gradually tapering toward a central shaft line of the stem curve restraining portion over the entire area from a rear end portion to a tip end portion which is continued to a tip end of the stem molding portion.8. The engine valve forging system according to claim 7 , wherein a plurality of the stem curve restraining portions are formed continuously along the central shaft line of the stem curve restraining portions.9. The engine valve forging system according to claim 7 ...

APPARATUS FOR PRODUCING A HOLLOW POPPET VALVE

A method of producing a hollow valve comprises the step for forming material having a blind hole along its axis, the step for extruding the material in a shaping hole in a die downward and the step for lowering a lower part of a pin to an upper part of a smaller-diameter portion of the shaping hole to allow the material to plastically flow downward through a gap between the lower part of a pin and the smaller-diameter portion of the shaping hole thereby molding a primary intermediate of the hollow valve having a stem and a head at the upper end of the stem through which a hole is formed. 111-. (canceled)12. An apparatus for producing a hollow poppet valve , the apparatus comprising a first press that comprises:a die having a shaping hole that comprises a larger-diameter portion into which material can be inserted, a squeezing portion which communicates with the larger-diameter portion and tapers downward, and a smaller-diameter portion which communicates with the squeezing portion to form a stem of the poppet valve;a ram that rises and lowers above the die;a punch attached to the ram, a lower end of the punch being capable of moving into the larger diameter portion of the shaping hole in the die; anda pin disposed to move up and down in a vertical guide hole along an axis of the punch and connected to the ram, a smallest portion at a lower end projecting from the punch downward to put into the smaller-diameter portion of the shaping hole.13. The apparatus of claim 12 , further comprising pressing means for forcing the punch downward to press the primary intermediate downward until the pin moves up.14. The apparatus of claim 13 , wherein the pressing means comprise a compression spring.15. The apparatus of claim 12 , further comprising a second press disposed near the first press claim 12 , the second press comprising:a die holder;a ram above the die holder to rise and lower;a die in a recess in the die holder having a shaping hole; anda punch in a recess in the ram ...

Forging press device for valve

A forging press device for valve including an upsetter in which a plurality of primary forming stages are provided, a forging press main body adjacent to the upsetter, that secondarily forms a primary formed workpiece, and a workpiece conveyance/carry-in device which grips and conveys the workpiece, to carry it into the forging press main body, the device in which the workpiece conveyance/carry-in device is composed of a high speed multi jointed robot capable of circling around a vertical shaft, which has an arm (a chuck) gripping the workpiece. In accordance with the invention, it is possible to provide a forging press device for valve in which the number of deliveries of workpiece from the upsetter to the forging press main body is decreased, which speeds up a valve forging line, and improves the production efficiency.

Inspection Mechanism for Metal Blank

An inspection mechanism for metal blank, adapted for sensing the surface condition of a metal blank, includes a framework, a holding device, a shuffling device, and an inductive control device. It mainly utilizes the inductive control device to drive the holding device to hold and position the metal blank and control the shuffling device to move the sensor of the inductive control device to the path of sensing the metal blank, so as to conduct the sensing operation. 1. An inspection mechanism for metal blank , adapted for sensing the surface condition of a metal blank , comprising:a framework, comprising a platform and a foot unit arranged next to said platform;a holding device arranged on said platform for holding the metal blank;a shuffling device, comprising a lateral rail arranged on said foot unit, a perpendicular rail slidably arranged on said lateral rail, and a base arranged on said perpendicular rail; anda inductive control device, comprising a controller and a sensor arranged on said base, wherein said base is adaptable for controllably horizontally and vertically move along said lateral rail and said perpendicular rail, wherein said controller is electrically connected with said holding device, said base, and said sensor, so as to control the actuation of said holding device and the horizontal and vertical moving distance of said base and to record the value of the surface condition of the metal blank sensed by said sensor.2. The inspection mechanism for metal blank claim 1 , as recited in claim 1 , wherein said holding device comprises a shelf arranged on said platform and a holder arranged under said shelf claim 1 , wherein said shelf has four slots provided thereon claim 1 , wherein said holder comprises a telescopic cylinder controlled by said controller and four holding posts driven by said telescopic cylinder to move to or from one another claim 1 , wherein each said holding post protrudes from the surface of said shelf from one said slot ...

VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

A front plate for a valve timing control device is produced which comprises a plate part that closes a front opening of a housing body to seal operation oil chambers in the housing body and a cylindrical part that is integral with and projected forward from an opened central portion of the plate part and after production of the front plate, an annular part of a front surface of the plate part near a root portion of the cylindrical part is pressed, by a press machine, toward a rear surface of the plate part against a supporting tool that intimately supports the rear surface of the plate part, so that the rear surface of the plate part has an improved flatness at an annular area surrounding the opening of the front plate thereby to increase a sealability between the plate part and the front opening of the housing body. 1. A valve timing control device for an internal combustion engine , comprising:a housing body to which a torque is transmitted from a crankshaft, at least one of axial ends of the housing body being opened;a vane rotor that includes a rotor fixed to the camshaft, a plurality of vanes provided on the rotor, the vanes being operatively engageable with a plurality of shoes projected from an inner cylindrical surface of the housing body thereby to constitute delayed angle operation chambers and advanced angle operation chambers, the vane rotor being selectively rotated in a delayed angle side or an advanced angle side relative to the housing body in response to charging or discharging of an operation oil to or from the delayed and advanced angle operation chambers;a front plate including a discal plate part that closes the axial open end of the housing body at its rear surface thereby sealing all of the delayed and advanced angle operation chambers and a cylindrical part that is integrally projected outward from a peripheral edge of a through opening formed in a central portion of the discal plate part; anda torsion spring that has one end engaged to the ...

An Open Die Forging Process for Minimizing End Losses and a Product Made Using it

The invention discloses a process of manufacturing heavy and critical components such as a blowout preventer (BOP) with a combination of open die forging, piercing and machining process which results in to better material utilization and saving in the machining time. The forging process of the invention involves a step of notching, wherein a transverse notch is made near each end of the ingot before cogging said ingot. The invention allows development of safety and critical components with effective material utilisation.

METHOD FOR PRODUCING A HOLLOW ENGINE VALVE

The present invention provides a method for producing a hollow engine valve, with which the production process can be simplified and the processing precision can be improved. To this end, the present invention provides a method for producing a hollow engine valve () which is provided with a valve main body () in which a hollow hole () is formed along a valve umbrella part () and a hollow shaft part (), wherein a solid round bar () forming the material of the valve main body () is moulded to a semi-finished article () by means of a single hot-forging process, the semi-finished article () is subjected to rotary swaging whereby the semi-finished article () is moulded into a semi-finished article (), the semi-finished article () is subjected to necking whereby the semi-finished article () is moulded into the valve main body () , and a shaft end sealing member () is joined to the end part of the hollow shaft part () of the valve main body (). 1. A method for producing a hollow engine valve including a valve body in which a hollow bole extending through a valve umbrella portion and a hollow stem portion connected to the valve umbrella portion is formed , characterized in that the method comprises:shaping a solid round bar which is a raw material of the valve body into a valve body semi-finished product in which a semi-finished product hollow hole is formed, by performing hot forging once, the semi-finished product hollow hole corresponding to the hollow hole and extending through a semi-finished product valve umbrella portion corresponding to the valve umbrella portion and a semi-finished product hollow stem portion corresponding to the hollow seem portion;subjecting the valve body semi-finished product to a rotary swaging process in which an outer peripheral surface of the semi-finished product hollow stem portion is pressed while the valve body semi-finished product is rotated, and thereby reducing a diameter of the semi-finished product hollow stem portion and ...

Non-pneumatic support structure

A wheel and tire assembly for a mobile vehicle in accordance with the present invention includes an inner central rim, a flexible ring mounted on the inner central rim, and a spoke structure extending between the inner central rim and the flexible ring. The spoke structure defines a plurality of cavities and alternating radially extending openings disposed concentrically about the inner central rim and allowing the flexible ring to deflect under load. The spoke structure further defines a plurality of triangular openings disposed at the flexible ring and between the cavities and the inlet openings.

Power end frame assembly for reciprocating pump

A plate segment for a reciprocating pump power end frame assembly, the power end frame assembly having a pair of end plate segments and at least one middle plate segment disposed between the end plate segments. The plate segment consists of the middle plate segment or one of the pair of end plate segments and includes a plate having a front wall, a rear wall, a top wall, a bottom wall and a pair of sidewalls and at least one opening forming a bearing support surface, the opening extending through the plate. The plate segment further includes at least one extension extending from at least one of the sidewalls of the plate at a position to align with and contact a corresponding extension on an adjacently positioned plate.

INTERNALLY COOLED VALVE FOR INTERNAL COMBUSTION ENGINES, AS WELL AS METHOD AND DEVICE FOR THE PRODUCTION THEREOF

A method and a device for the production of an internally cooled inlet or outlet valve for internal combustion engines, together with the resultant valve includes provision of a workpiece, which has a cylindrical stem and a cylindrical hole and, extends in the axial direction from one end of the valve stem. The method includes reshaping the end of the valve stern by form rolling of the cylindrical stem to a smaller diameter, wherein a diameter of the cylindrical hole is reduced, wherein the cylindrical hole remains. The method further includes reshaping by form rolling the section of the workpiece that is adjacent to the valve stem to form the valve head. 2414166. The method for the production of an internally cooled valve () for internal combustion engines claim 1 , in accordance with claim 1 , wherein prior to the form rolling process the workpiece ( claim 1 , ) comprises a diameter of at least that of the valve disk () of the finished valve claim 1 , and further comprising:{'b': '8', 'form rolling of a transition section between the valve head and the valve stem () to form a concave fillet.'}3416. The method for the production of an internally cooled valve () for internal combustion engines claim 1 , in accordance with or claim 1 , wherein the workpiece () is cup-shaped claim 1 , wherein{'b': 14', '16', '16', '6, 'the cup-shaped workpiece (, ) has a diameter at a base of the workpiece () that corresponds at least to that of the valve disk (),'}{'b': 26', '36', '16, 'wherein the cylindrical hole is a blind hole (), which extends from one end of the valve stem () in the direction of the base of the cup-shaped workpiece (), and'}wherein the form rolling process comprises a reshaping of the stem and a shaping of the valve body.44. The method for the production of an internally cooled valve () for internal combustion engines claim 3 , in accordance with claim 3 , wherein{'b': 16', '6, 'an outer surface of the base of the workpiece () already has the shape of the valve ...

Automotive underbody part and method for manufacturing same

The present invention provides an aluminum-alloy automotive underbody part having adequate strength even when using a part forged from an aluminum alloy casting material and an effective method for manufacturing said underbody part. The present invention pertains to an automotive underbody part characterized in being an aluminum alloy forged part in which the average inverse of the Schmid factor, calculated based on the crystal orientation in the direction of load stress in the maximum stress area when external force is applied, is 2.3 or more.

REINFORCED ELECTROMECHANICAL ACTUATOR HOUSING

An electromechanical actuator housing assembly comprising a reinforcement ring is disclosed herein. The design of the electromechanical actuator housing assembly may be directed to improving load measurement accuracy. The design of the electromechanical actuator housing assembly may be directed to reducing housing deflections. A method of manufacture of an EMA housing assembly is also disclosed herein. This method may include an electromechanical actuator housing assembly having a reinforcement ring. 1. A method of manufacture of an EMA housing assembly , comprising:forging an aluminum housing of an electromechanical actuator having a reinforcement ring integrally coupled to the EMA housing, wherein the reinforcement ring comprises a housing geometry with material lying distal to a retaining surface of the EMA housing that decreases in axial distance as measured from a mounting flange while moving towards an axial centerline as measured from an exterior surface of the EMA housing.2. The method of claim 1 , wherein the reinforcement ring is configured to reduce deflections of the EMA housing assembly.3. The method of claim 1 , wherein the reinforcement ring is configured to reduce inaccurate measurements of a load cell coupled to the EMA housing assembly.4. The method of claim 1 , wherein the reinforcement ring is configured to stiffen a braking system associated with the EMA housing assembly.5. The method of claim 1 , wherein the EMA housing assembly comprises aperture surface that bounds a cavity configured to receive an ADU motor retention nut.6. A method of manufacture of an EMA housing assembly claim 1 , comprising:forging a housing of an electromechanical actuator having a reinforcement ring integrally formed in the housing assembly with a retaining surface located axially between the reinforcement ring and a mounting flange of the housing assembly, wherein the retaining surface comprises a polygonal geometry, wherein the reinforcement ring is disposed distal ...

Method of manufacturing a large- or medium-sized wheel disk and a product manufactured thereby

A method of manufacturing a large- or medium-sized wheel disk including using a punch or die in a first step of ironing a blank of a flat plate to a first-stage product. The first-stage product having a cylindrical rising portion with an axially non-constant thickness. The rising portion includes a thick portion located at a tip portion of the rising portion and a thickness-reduced portion which is a remaining portion of the rising portion excluding the thick portion. During the first step, only a portion of the blank corresponding to the thickness-reduced portion is ironed.

A Fluid End and Method of Manufacturing IT

The present invention discloses a Fluid End and its manufacturing method. The conventional fluid end manufacturing methods involve machining of all surfaces. 11232341872382315656. A fluid end () comprising a main block () , a flange () , said main block () and flange () connected by a neck () wherein said fluid end () has a first and a second surface (and ) , said first surface () being the surface of said main block () nearer the flange () and said second surface () being the surface of said main block () away from said flange () , and wherein said fluid end () has a number of assembly () and non-assembly surfaces () , characterised in that assembly surfaces () are finished by machining and at least some of non-assembly surfaces () are left in as-forged condition as indicated in .2. A method of manufacturing a fluid end characterised in that said process comprises the steps ofa. forging of an ingot into a billet using open die method;b. forging said billet by providing blows in multiple steps to achieve near net shaped fluid end;c. rough machining outer surfaces of assembly areas of the said near net shaped fluid end and keeping non-assembly surfaces as forged to achieve rough machined near net shaped fluid end;d. providing heat treatment to said rough machined near net shaped fluid end to achieve a heat treated rough machined near net shaped fluid end;e. providing further semi-finish or partial or rough machining to the said heat treated rough machined near net shaped fluid end;f. drilling for creating internal pathways;g. providing finish machining to produce fluid end.3. A method as claimed in characterised in that said multiple steps of providing blows further comprise the steps of:a. heating said billet to forging temperature and providing a first set of blows to produce a first-heated finisher;b. if required, heating the first-heated finisher further and providing a second set of blows by placing said first-heated finisher in a closed die to produce a second- ...

Multiple Piece Pinion Housing For Vehicle Power Steering

A vehicle power steering assembly has a pinion housing comprised of first, second, and third housings. The first housing is a drawn tube formed from a first material. The second housing is a casting formed from a second material. The third housing is a stamping formed from a third material. The second housing is press fit into the first housing. The third housing is press fit and welded to the first housing. The second material has a lesser unit weight than each of the first and third materials. The first, second, and third housings together form the pinion housing. 1. A method of fabricating a pinion housing for a vehicle power steering assembly , the method comprising the steps of:forming a first housing from a first material;forming a second housing from a second material, wherein the second material has a lesser unit weight than the first material;forming a third housing from a third material, wherein the third housing is a stamping and the third material has a greater unit weight than the second material; andjoining the formed first, second, and third housings together to form the pinion housing, wherein the first, second, and third housings are each formed separately.2. The method of further comprising the steps of:forming a first tube;forming a second tube separately from the first tube; andjoining the formed first and second tubes together to form the first housing.3. The method of further comprising the steps of:forming a pinion tower bottom;forming a pinion bowl separately from the pinion tower bottom; andjoining the formed pinion tower bottom and formed pinion bowl together to form the second housing.4. The method of wherein the first housing is a drawn tube and the second housing is a casting.5. The method of wherein the first and third materials are steel and the second material is aluminum.6. A pinion housing for a vehicle power steering assembly claim 1 , the pinion housing comprising:a first housing formed from a first material; anda second housing ...

Internally cooled valve for an internal combustion engine

An internally cooled valve ( 2 ) includes a valve body having a valve head ( 4 ) and a valve stem ( 6 ). The valve body has at least one cavity ( 8 ) in which coolant ( 10 ) is situated. The coolant is a nanofluid ( 12 ) in which nanoparticles ( 14 ) are dispersed in a dispersion medium ( 16 ).

METHOD OF MANUFACTURING A TUBE AND A MACHINE FOR USE THEREIN

A method is used to manufacture a drawn tube having a hollow low interior for housing an axle shaft. The method includes the steps of placing a billet into a first die assembly and pressing the billet into the first die to producing a pre-formed billet. The method also includes the steps of moving the pre-formed billet from the first die assembly to a second die assembly and pressing the pre-formed billet into the second die assembly to produce an extruded tube. The method further includes the steps of moving the extruded tube from the second die assembly to a third die assembly and pressing the extruded tube into the third die assembly to further elongate the extruded tube and decrease the thickness of the wall of the extruded tube to of from about 3 to about 18 millimeters to produce the drawn tube having the yield strength of at least 750 MPa. 1. A method of manufacturing a drawn tube having a hollow interior for housing an axle shaft , which transmits rotational motion from a prime mover to a wheel of a vehicle , with the drawn tube having a wall that has a thickness of from about 3 to about 18 millimeters and the drawn tube has a yield strength of at least 750 MPa , said method comprising the steps of:placing a billet into a cavity of a first die assembly;pressing the billet into the cavity of the first die assembly to form a bore at one end of the billet thereby producing a pre-formed billet;moving the pre-formed billet from the cavity of the first die assembly to a cavity of a second die assembly;pressing the pre-formed billet into the cavity of the second die assembly to elongate the pre-formed billet and form a hollow interior therein thereby producing an extruded tube;moving the extruded tube from the cavity of the second die assembly to a cavity of a third die assembly; andpressing the extruded tube into the cavity of the third die assembly to further elongate the extruded tube and decrease the thickness of the wall of the extruded tube to of from about 3 ...

Lightweight rocker arm for IC engine

A lightweight rocker arm for an IC engine is made from a single metal sheet pressing folded into a U-shape open to the rocker shaft (20). The two side flanges have holes to take ball bearing races to mount the arm on the rocker shaft, with the cam (5) rolling on the outer shells of the bearings. The one end has a pressed thrust face to sit on the end of the valve shaft, with two tags bent round the arm to form side flanges to prevent the arm slipping off the valve shaft. The other end of the rocker arm is pressed with a concave recess to sit on a ball shaped thrust support (23) on the side of the engine block.

Method for manufacturing valve timing adjusting apparatus

A base material of a peripheral wall and a vane rotor is formed by extrusion molding an aluminum alloy and cutting an extrusion molded article to the desired length. Further, the extrusion molded article can be molded with high accuracy by extracting the aluminum alloy after extrusion. Preferably, 6000 system of Al—Mg—Si is used as an aluminum alloy. The cutting process and polishing process are applied to the roughly molded base material to form the peripheral wall and the vane rotor. By varying the length to be cut, the volume of each retard hydraulic chamber and each advance hydraulic chamber are adjusted. When the volume of the hydraulic chambers are adjusted, the torque for relatively rotating and driving the vane rotor with respect to the housing member can be changed even pressure of working oil is the same.

Variable valve timing mechanism for internal combustion engine

Engine variable valve timing mechanism

METHOD AND DEVICE FOR MANUFACTURING HOLLOW, INTERNALLY COOLED VALVES

A method for shaping a hollow valve preform of a pull rod () includes a structuring bulb () which is inserted into the cavity () of a shaft portion () of a valve preform. The structuring bulb () has an outer diameter, and has an outer structuring, whereafter the hollow shaft portion () is shaped, wherein at least a portion of an inner diameter of the cavity () is reduced below an outer diameter of the structuring bulb (). The structuring bulb () is then pulled out through the shaped shaft portion (), wherein the outer structuring is at least partially pressed into the surface of the cavity (). 1. A method for shaping a hollow valve preform comprising:providing a valve preform, which comprises a head portion and a hollow shaft portion comprising a cavity, wherein the shaft portion has an initial outer diameter and an inner diameter,inserting a pull rod comprising a structuring bulb into the cavity, wherein the structuring bulb has an outer diameter, and has an outer structuring,shaping the hollow shaft portion, wherein at least a portion of an inner diameter of the cavity is reduced below the outer diameter of the structuring bulb,pulling out the structuring bulb through the shaped shaft portion, wherein the outer structuring is at least partially pressed into the surface of the cavity.2. The method according to claim 1 , wherein the structuring bulb has a coil-shaped outer structuring claim 1 , and wherein the structuring bulb is rotated through the shaped shaft portion during the pull-out.3. The method according to claim 1 , further comprising inserting,', 'shaping, and', 'pulling out, 'repeating the steps of'}by use of structuring bulbs, which each have a decreasing outer diameter RA.4. The method according to claim 3 , wherein the structuring bulbs each have a rising structure height.5. The method according to claim 3 , wherein the structuring bulbs have a coil-shaped outer structuring each with rising pitch.6. The method according to claim 3 , wherein ...

Methods for forming low stress component for medical devices

Disclosed herein are approaches of forming a component, such as a valve, for a medical device. One approach includes providing a cylinder within a tube, the tube and the cylinder joined together in an interference fit, and annealing the tube and the cylinder, wherein the tube and the cylinder are no longer joined together in the interference fit following the annealing.

Method of manufacturing annular molding

A method of manufacturing an annular material includes: a forging process of making a discoid forged material by forging an alloy material; and a ring rolling process of making an annular material by performing ring rolling on an annular intermediate made by forming a through-hole in the forged material. In the forging process, hot forging which achieves an absolute value εθ 1 of a strain in a circumferential direction of the forged material that is greater than or equal to 0.3, an absolute value εh of a strain in a height direction of the forged material that is greater than or equal to 0.3, and a ratio εh/εθ 1 between the absolute values of the strains that is in a range of 0.4 to 2.5 is performed at least two or more times.

Method of obtaining toothed pole piece

A method of manufacturing a pole claw member for a dynamo electric machine comprises in a first embodiment forming a serrated longitudinal edge in a ferrous strip and bending the serrated strip to form a cylinder with the serrations extending axially. The ends of the strip are then secured together by welding, rivetting or by a tang and aperture connection to produce a coronet form. The coronet form is then deformed in one or more, preferably three, die forming steps to produce the desired shape of claw and to define an annular base at the end of the cylinder.

내연기관의 가변밸브 타이밍기구

본 발명은 제 2회전체와 연동하는 구동축 또는 피구동축의 강도를 향상시킬 수 있음과 동시에 각 압력실, 각 압력공급로의 시일특성을 향상시킬 수 있는 내연기관의 가변밸브타이밍기구를 제공한 것이다. 본 발명에서 가변밸브타이밍기구(10)는 캠샤프트(39)와 이 캠샤프트(39)의 선단에 고정된 로우터(11)를 구비한다. 캠샤프트(39)의 외경(φA)을 로우터(11)의 보스(48)의 외경(φB)보다도 작게 설정한다. 캠샤프트(14)의 선단부에 볼트구멍(143)과 캠샤프트(39)의 대략 축방향으로 연장하는 유로(145)와 캠샤프트(14)의 축심으로부터 이간하도록 연장하는 유공(148)을 형성한다. 유로(145)는 캠샤프트(39)의 선단면으로 개구하고, 유공(148)은 캠샤프트(39)의 외주면(149)으로 개구한다.

기계용 씰 어셈블리의 등방성 마감 씰 링을 제조하는 방법 및 기기

씰 어셈블리(30, 36)용 씰 링(111, 112)은 몸체(240) 및 씰 플랜지(137)를 포함한다. 몸체(240)는 일반적으로 원통형이고, 로드 말단(131)과 씰 말단(132) 사이에서 길이 방향 축(LA)을 따라 연장된다. 씰 플랜지(137)는 몸체(240)의 씰 말단(132)에 인접하게 배치되고, 몸체(240)로부터 둘러싸는 방식으로 반경 방향으로 돌출한다. 씰 플랜지(137)는, 정합 씰 링(111, 112)과 밀봉 접촉하기 위해 밀봉 밴드(140)를 갖는 밀봉 면(136)을 포함한다. 씰 링(111, 112)의 내식성을 증가시키는 것을 돕기 위해 제형화된 코팅 조성물의 층(142)이 적어도 몸체(240)에 도포된다. 밀봉 밴드(140)가 노출된 상태이도록, 이에 도포된 코팅 조성물의 층(142)을 갖는 씰 링(111, 112)의 적어도 일부를 덮기 위해, 씰 링(111, 112)에 마스크(300, 400)가 적용된다. 밀봉 밴드(140)는 등방성 마감 공정에 의해 연마된다. 마스크(300, 400)는 밀봉 밴드(140)가 등방성으로 연마된 후에 제거된다.

模锻方法

模锻方法,具有可以以高效率、高精度地成形锻造制品之特征,包括,在前锻造工序形成一嵌合部(4)、一凸缘和一喷嘴前端配件(3)的阶梯嵌合部(6),该阶梯嵌合部(6)由上模(19)和上外冲头(20)形成,其后为形成一横向孔、一凹凸部(7)的工序,上述工序为在模销(13)退回到背压不施加到模锻材料表面上的状态下,驱动上内冲头(21)来完成的,因为在前锻造工序中,材料充满了型腔,故成形部分精度高。

Multipole joint disk forming method for electromagnetic joints

Method of making forging of gas turbine engine fittings

FIELD: metallurgy.SUBSTANCE: invention relates to metal forming and can be used for fabrication of forgings of gas-turbine engine fittings. Initial cylindrical billet is made to produce workpiece in form of rod with two different-sized branches. In the lower part the processes have the shape of a semi-cylinder. Semi-finished product is obtained from obtained semi-product. Spherical head is simultaneously formed on the butt end of the rod and the shape of two different-sized processes is changed to cylindrical. Then, the semi-finished product is stamped in die molding, having a pusher with its spherical head and outer surface of different-sized branches. In the process of final forging in the middle part of the workpiece in the plane perpendicular to the billet axis simultaneously forming two equal-size branches of the rectangular profile located at angle of 150° to each other, and cavity on end face of semi-finished product.EFFECT: higher quality of produced forgings.3 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 690 256 C1 (51) МПК B21K 1/26 (2006.01) B21K 21/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B21K 1/26 (2019.02); B21K 21/08 (2019.02) (21)(22) Заявка: 2018126451, 17.07.2018 (24) Дата начала отсчета срока действия патента: 31.05.2019 Приоритет(ы): (22) Дата подачи заявки: 17.07.2018 (56) Список документов, цитированных в отчете о поиске: RU 2255831 C2, 10.07.2005. RU 2 6 9 0 2 5 6 Дата регистрации: (73) Патентообладатель(и): Общество с ограниченной ответственностью Научно-Производственное Объединение "ГАЛС" (RU) R U 17.07.2018 (72) Автор(ы): Смирнов Федор Георгиевич (RU) 2212974 C2, 27.09.2003. SU 1586844 A1, 23.08.1990. US 3889512 A1, 17.06.1975. (45) Опубликовано: 31.05.2019 Бюл. № 16 2 6 9 0 2 5 6 R U (54) Способ изготовления поковки корпуса арматуры газотурбинного двигателя (57) Реферат: Изобретение относится к обработке металлов окончательную штамповку полуфабриката в давлением и ...

Forging technique for nuclear-grade F91 valve body

本发明涉及一种大口径高温核电用阀体的锻造技术，具体的讲，是涉及一种核级F91阀体锻造工艺。本发明的锻造工艺针对F91材料，采用了预段成T形，再放入模具中锻造的方法克服了原有技术的缺陷，材料利用率高，不会造成浪费，锻造流线不会被破坏，并且加热次数少，成型迅速，节约成本。

METHOD FOR PRODUCING A RING FORMED BODY

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 146 287 A (51) МПК B21K 21/06 (2006.01) B21H 1/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015146287, 28.03.2014 (71) Заявитель(и): ХИТАЧИ МЕТАЛЗ ММС СУПЕРЭЛЛОЙ, ЛТД. (JP), ХИТАЧИ МЕТАЛЗ, ЛТД. (JP) Приоритет(ы): (30) Конвенционный приоритет: 28.03.2013 JP 2013-069205 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 28.10.2015 (86) Заявка PCT: (72) Автор(ы): КИКУТИ Хироаки (JP), ТАКИДЗАВА Хидео (JP), ИСИВАРИ Юдзи (JP), ОСОНЕ Дзун (JP) (87) Публикация заявки PCT: WO 2014/157662 (02.10.2014) R U (54) СПОСОБ ИЗГОТОВЛЕНИЯ КОЛЬЦЕВОГО ФОРМОВАННОГО ТЕЛА (57) Формула изобретения 1. Способ изготовления кольцевого формованного тела, включающий этап ковки куска сплава для получения кованого тела, имеющего дискообразную форму, и этап кольцевой прокатки кольцевого промежуточного тела, подготовленного посредством формования в нем сквозного отверстия, для получения кольцевого формованного тела, отличающийся тем, что этап ковки включает по меньшей мере два этапа горячей ковки, при этом каждый из этапов горячей ковки выполняется при следующих условиях: скорость деформации составляет не более 0,5 с-1, абсолютное значение εθ1 деформации кованого тела в окружном направлении составляет по меньшей мере 0,3, абсолютное значение εh кованого тела в направлении высоты составляет по меньшей мере 0,3, и соотношение εh/εθ1 между абсолютными значениями деформации составляет 0,4-2,5. 2. Способ изготовления кольцевого формованного тела по п. 1, отличающийся тем, что различие между размерами зерна в области изделия в сечении кольцевого формованного тела в направлении, включающем в себя ось кольцевого формованного тела, находится в диапазоне ±2 согласно номерам размера зерна по ASTM. 3. Способ изготовления кольцевого формованного тела по п. 1 или 2, отличающийся тем, что на этапе ковки размер зерна кованого тела соответствует по меньшей мере номеру 7 размера зерна по ASTM. 4. ...

Forging method of valve

本发明涉及一种阀体的锻造方法，其具体步骤如下：包括有（1）试样、（2）检测、（3）下料、（4）坯料加温、（5）制坯、（6）预锻、（7）精锻、（8）热切边、(9)首检、（10）热处理、（11）抛丸、（12）尾检步骤，本发明提供了一种针对阀门A105钢锻件在锻造时达到锻造均匀、加工时间短且锻件精度高的阀体的锻造方法。

A kind of long valve body punching pulling forging technology

本发明涉及锻造领域，具体是一种长阀体冲孔拔长锻造工艺，包括以下步骤：加热坯料至1220℃，保温9小时，使用上平板，下转台，坯料经过一次镦粗、一次拔长、二次镦粗至1320mm×1040mm，1200mm高，回炉；使用头冲进行冲孔，翻面，用头冲冲穿并切除芯料，回炉；用二冲拔长至1450mm长，整形后脱出冲头，回炉；用成型芯棒拔长到位，精整方身成型。本发明采用冲孔拔长锻造工艺，提高了产品芯部的紧密度，对于产品后续本体机械性能有着明显的提高，延长了产品的使用寿命；降低了加工成本和加工周期，增加了市场吸引力。

Rotary Forging Device

제1금형(301)의 대략 원뿔상의 가압단면과 제2금형(302)의 가압단면을 대향시켜 상기 가압단면의 모선의 한편이 대략 수평으로 되도록 제1금형(301)의 축선을 경사시켜 상기 가압단면과 상기 가압단면과의 사이에 워크(10)를 개재시켜, 이들 제1금형(301)과 제2금형(302)을 동기회전시켜 동시에 대향접근시켜서 워크(10)를 압하하고, 이 압하역에서 돌출하는 소재를 성형롤러과 이들 금형에 의하여 림부(11)로 다듬질하도록 한 회전단조장치에 있어서, 소림부와 대림부로 이루어지는 림부(11)를 구비하는 림달린 디스크를 성형할때, 디스크부(1)의 균열이나 림부(11)의 버를 방지하는 것. 제2금형(302)의 디스크 성형용의 가압단면의 외주부에 소림부 성형을 위한 림성형부를 형성하고, 그 소림부의 끝가장자리를 성형하기 위한 환상벽(32)을 상기 림성형부의 외주가장자리에서 제1금형(301)측으로 돌출시켜, 자전이 자유로이 지지시킨 성형롤러(2)를 상기 환상벽(32)의 상단에 대접 또는 접근시킨 것.

Method of cooling the lower part of the hot stamp and the device for its implementation

FIELD: machine building.SUBSTANCE: invention relates to the field of mechanical engineering and can be used in tooling for producing blanks such as valves of internal combustion engines. Forming part of the stamp contains the holder in which the matrix is located. Matrix has a shaping cavity with an upper part of a larger diameter, conjugated along radii with a part of a smaller diameter located below it. On the inner surface of the cage there are upper and lower annular grooves in which the transverse windows for the refrigerant are open. Upper annular groove is connected by helical grooves with the middle annular groove located below the interface zone of the matrix cavity parts. Matrix is made with inclined channels located under the coolant located in the interface zone of parts of its cavity. Beginning of the channels is open to the screw grooves of the cage, and the end to the beginning of the grooves on the outer surface of a part of the matrix with a cavity of smaller diameter. These grooves are located inclined to the longitudinal axis of the matrix and open with the ends in the lower annular groove of the yoke.EFFECT: result is an increase in the strength of the matrix.1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 670 508 C1 (51) МПК B21K 1/22 (2006.01) B21J 13/02 (2006.01) B21K 29/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (52) СПК (21)(22) Заявка: 2017115138, 27.04.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Кожокин Тимофей ...

Forming method for vibration case and case thereof

본 발명은 모바일기기용 바이브레이터를 위한 케이스의 포밍 방법 및 그 케이스에 관한 것으로, 보다 상세하게는 공공장소나 회의장, 공연장에서 음향신호 발생으로 타인의 집중을 방해한다. 이러한 피해가 없도록 휴대전화나 스마트폰 등 모바일기기에 착신되는 통화나 메시지를 즉시로 알리기 위하여 장착되는 바이브레이터를 위한 케이스의 포밍 방법 및 그 케이스에 있어서 (a) 제1 및 제2 금속패널 준비단계; (b-1) 제1금속패널를 가공하여 브리지와 함께 케이스 바디용 제1성형부의 윤곽을 형성하는 프로그레시브 제1윤곽따내기 단계; (b-2) 제1금속패널의 제1성형부를 단조 가공하여 일방이 개구된 수용부를 갖는 케이스 바디를 가공하는 프로그레시브 제1메인포징(main forging) 단계; 및 (b-3) 상기 (b-2)단계와 동시에 개구부 둘레 내주면에 단턱부를 형성하기 위한 프로그레시브 제1서브포징 단계;를 포함하여 이루어진 모바일기기용 바이브레이터를 위한 케이스의 포밍 방법 및 그 케이스에 관한 것이다. The present invention relates to a method of forming a case for a vibrator for a mobile device and a case thereof, More specifically, it prevents the concentration of other people by generating acoustic signals in public places, conference rooms, and concert halls. A method of forming a case for a vibrator to be mounted to immediately notify a call or a message to a mobile device such as a cellular phone or a smart phone so as to avoid such damage, (a) preparing first and second metal panels; (b-1) a first metal panel to form a contour of the first forming part for the case body together with the bridge; (b-2) a progressive first main forging process for machining a case body having a receiving portion opened at one side by forging the first forming portion of the first metal panel; And (b-3) a progressive first subposing step for forming a step on the inner circumferential surface of the opening at the same time as the step (b-2), and a method of forming a case for a vibrator for a mobile device, will be.

A manufacturing process for spindle housing with integral flange

본 발명은 플랜지가 스핀들 하우징의 일측 단부에 형성된 플랜지부착 일체형 스핀들 하우징 제조방법에 관한 것으로, 일정길이로 절단되어 미리 설정된 온도로 가열된 봉형의 소재를 전용금형에 올려 놓고 가압하는 업셋공정(P10)과, 상기 소재를 하부금형(1)에 배치하고 상부금형(2)을 프레스로 가압하여 소재 상부 중앙에 1차 가압홈을 형성하는 버스터공정(P20)과, 상기 소재를 전용의 하부금형(3)에 넣고 상부금형(4)을 프레스로 가압하여 소재 상부 중앙에 2차 가압홈을 형성하는 브로커공정(P30)과, 상기 소재를 가압성형하여 스핀들 하우징 부분과 그 상부에 플랜지 부분이 일체로 된 플랜지부착 일체형 스핀들 하우징 형상을 얻는 피니셔공정(P40)과, 관통홀을 형성하는 피어싱공정(P50), 및 플랜지부착 일체형 스핀들 하우징에서 요구되는 기계적 특성을 얻기 위한 열처리공정과, 치수로 가공하는 기계가공공정(P60)을 포함하여 구성됨으로써, 상부에 플랜지가 일체로 형성된 스핀들 하우징을 일관 공정들로 얻게 되므로, 대량 생산이 가능하여 생산성이 크게 향상되고, 균일한 품질의 제품을 얻을 수 있는 효과가 있다. The present invention relates to a method of manufacturing an integral type spindle housing with a flange formed at one end of a spindle housing. The method includes an upsetting step (P10) of placing a rod-shaped material heated to a preset temperature on a dedicated mold, A pushing step P20 of placing the material in the lower mold 1 and pressing the upper mold 2 with a press to form a primary pressurizing groove in the center of the material upper part and a lower mold 3 ), A broker process (P30) for forming a secondary pressurizing groove at the center of the upper portion of the work by pressing the upper mold (4) by a press, a pressurizing process for pressurizing the material to form a spindle housing portion and a flange portion (P40) for obtaining a flanged integral spindle housing shape, a piercing process (P50) for forming a through hole, and a mechanical property required in a flanged integral spindle housing And a machining process (P60) for machining to a dimension, so that a spindle housing in which a flange is integrally formed on an upper portion thereof can be obtained in a consistent process, so that mass production is possible, productivity is greatly improved, It is possible to obtain a uniform quality product.

Method for making complex-profile axially symmetrical parts of hard-to-form multiphase alloys and apparatus for performing the same

FIELD: plastic metal working, possibly manufacture of precise blanks of such parts as complex-shape discs with significantly changed thickness and diameter and with deep non-formed undercuts from hard-to-form multiphase alloys, particularly from refractory nickel alloys. SUBSTANCE: method comprises steps of placing shaped blank with possibility of its fixation and rotation; subjecting its peripheral portion to local shaping at temperature values no higher than 0.4 of its melting temperature but lower than temperature of planned recrystallization at rate 10 -3 -10 2 s -1 1/s; performing local shaping at squeezing peripheral part of blank at least by means of one roller in direction of its generatrix onto mandrel simultaneously used for fixing central portion; setting time period of blank rotation relative to local tool no less than time period of intensive relaxation of stresses in deformed zones. Apparatus for making parts includes units for axial fixation and rotation of blank provided with attachments for mounting mandrels; at least one roller with roller holder and working furnace. The last has in its walls openings for introducing part of unit for fixing rollers. Actuating mechanisms are designed for rotating and moving rollers. Walls of furnace have movable portion arranged around opening for introducing roller with possibility of axial motion together with roller along the whole length of its working stroke. EFFECT: enhanced efficiency, enlarged manufacturing possibilities of method, simplified design of apparatus. 25 cl, 23 dwg СОС ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2 187 403. 13) С2 В 21К 1/32, 21/02, В21Н 1/02, С 22Е 1/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 2000106705/02, 15.03.2000 (24) Дата начала действия патента: 15.03.2000 (46) Дата публикации: 20.08.2002 (56) Ссылки: КУ 2119842 СЛ, 10.10.1998. КУ 2093294 СЛ, 20.10.1997. КУ 2031753 СЛ, 27.03.1995. КУ 2089321 СЛ, 10.09. ...

Rocker arm manufacturing method

Stamped driver inflator base

A driver side inflator housing for a vehicle safety system which includes a base which is stamped from a thin sheet of aluminum The base includes a central axis, a plurality of stamped concentric rings extending upwardly from a bottom of the base and spaced from the central axis. An interface attachment flange is provided for mounting the inflator, and a squib pocket extending about the central axis of the base is capable of holding the squib of the gas generating inflator. The concentric rings, attachment flange and squib pocket are all formed during the stamping of the base; thus excessive machining is not required. Only minor machining is necessary to complete the base. The base of the present invention is designed to reduce the overall inflator cost, while maintaining the processing capability and quality of current bases.

Method for wheels

소성가공이 가능한 초기재로부터, 디스크부의 둘레가장자리에 환형상의 림부가 돌출하는 휠의 성형공정을 간소화한다. 초기재를 한쌍의 금형(301, 302)로 가압하여 이들 금형의 경계로부터 전연돌출하는 돌출소재를 로울유니트에 의해 림부로 성형한다. From the initial material which can be processed plastically, the shaping | molding process of the wheel which an annular rim part protrudes in the peripheral edge of a disk part is simplified. The initial material is pressed by a pair of molds 301 and 302, and the protruding material which protrudes from the boundary of these molds is molded into the rim by a roll unit.

Micro control valve and a method of manufacturing the same

The present invention relates to an ultrafine flow rate control valve directly coupling a valve stem to a valve body formed as a single body to increase structural strength and, at the same time, preventing leakage of a fluid, so as to guarantee excellent durability and precise operability; and a manufacturing method thereof. According to the present invention, the control valve comprises: the body valve (100) through which the fluid flows; the valve stem (200) installed inside the valve body (100) to be able to be lifted/lowered so as to control a flow rate of the fluid; a packing (300) installed in the valve body (100) to maintain airtightness to prevent leakage of the fluid; a gland bush (400) to guide lifting/lowering of the valve stem (200); a gland (500) screw-coupled to an upper part of the valve body (100) to prevent separation of the valve stem (200); and a Belleville spring (600) interposed between the gland bush (400) and the gland (500) to maintain a tension to prevent the gland (500) from being loosened. According to the present invention, provided are effects capable of correctly and precisely controlling an ultrafine flow rate, and capable of enhancing productivity through simplification of a structure and improvement of assembly convenience.