METHOD AND DEVICE FOR CUTTING OFF AN EXTRUDATE

A process unit and methods are disclosed. One process unit including a pultrusion unit having a pultrusion channel, with the pultrusion channel being limited by at least one shaping wall. The process unit further includes an extrusion unit having an extrusion channel and an opening for removing the extrudate out of the extrusion channel, a cutting unit having a moving cutting element for cutting off the extrudate with the moving cutting element, and a conveying device for conveying a raw extrudate from the pultrusion unit into the extrusion unit. The cutting unit comprises a component that can be caused to move in a rotational manner and the component is mechanically coupled to the cutting element by a mechanical coupling device, such that the rotational movement of the component determines the movement of the cutting element. 110-. (canceled)11. A method for producing an extrudate , the method comprising:introducing a hardenable matrix and fibres or a crude extrudate into a pultrusion unit;deforming the crude extrudate in the pultrusion unit wherein, during movement of the crude extrudate through a pultrusion channel of the pultrusion unit, an outer side of the crude extrudate rests on at least one shaping wall of the pultrusion unit;discharging the deformed crude extrudate from the pultrusion unit;introducing the crude extrudate discharged from the pultrusion unit into an extrusion unit;deforming the crude extrudate in the extrusion unit and discharging the crude extrudate that has been reshaped to form the extrudate from an opening of the extrusion unit; andcutting the extrudate by moving a cutting element;wherein a component of the extrusion unit carries out a rotational movement and the cutting element is moved by a mechanical coupling between the rotating component and the cutting element to cut the extrudate.12. The method of claim 11 , wherein the rotational movement of the component is converted into a movement having a movement direction substantially ...

METHOD FOR CONSOLIDATING AN ADDITIVELY MANUFACTURED PIECE

Methods and systems for consolidating an additively manufactured piece. In one embodiment, methods include the step of combining the additively manufactured piece with another piece, for example with another additively manufactured piece or with a piece that is not additively manufactured (e.g. an insert, foam, etc.), so that during a consolidation step, those pieces are assembled or connected together. 116-. (canceled)17. A method for consolidating an additively manufactured piece , the method comprising the steps of:placing a first piece in a cavity of a thermally conductive container,filling the cavity with one of a liquid and a semi-liquid material, so that the material directly contacts and completely surrounds the first piece, the material having a maximum operating temperature higher than a matrix melt temperature of the first piece, and the material having a positive relative thermal coefficient of expansion,sealing the cavity,curing the material, so that the cured material restricts the movement of the first piece in the cavity,heating the container, wherein, while the temperature within the container is increased, the cured material expands and then creates a pressure on the first piece, and wherein the temperature is increased until the temperature reaches a process temperature equal or higher than the matrix melt temperature of the first piece and lower than the maximum operating temperature of the material, andmaintaining the process temperature within the container so as to consolidate the first piece;wherein during the steps of heating and maintaining, the cured material is an in-situ created monobloc mould for the first piece.18. The method of claim 17 , wherein the first piece has a complex geometry.19. The method of claim 17 , wherein before the curing step any cracks in an outer surface of the first piece are covered.20. The method of claim 17 , further comprising a step of connecting the first piece with a second piece during the maintaining step ...

Fiber-reinforced composite device and forming method

Fiber-reinforced composite device and forming method

A preformed material for use in fiber-reinforced composite materials, the preformed material including one or more fiber rovings including parallel fibers wherein the fiber rovings include one or more folds in a direction parallel to the direction of the fibers and wherein the unfolded width of the fiber rovings have a width included in a range from 0.3 mm to 5 mm. The fiber density by volume may be included in a range from 10% to 75% of fibers. The thickness of a fiber roving may be included in a range from 50 μm to 2 mm. The fiber rovings may include from 500 to 12000 fibers. The fiber rovings may include a thermoplastic polymer that forms a first bond within the one or more folds and a second bond between a first fiber roving and a second adjacent fiber roving.

Method and device for cutting off an extrudate

One example provides a process unit including a conveying device to convey a hybrid yarn comprising a plurality of fibers and a matrix through a channel bounded by a base body, and a cutting unit having a component configured as a sleeve mounted about the base body, the sleeve rotatable about the base body and including a circular recess at an axial end region which is eccentrically aligned with an axis of rotation of the sleeve, and a cutting element on a slide slidably mounted to the base body and disposed within the circular recess, wherein the slide rests on a support surface of the sleeve bounding the circular recess so that, due to the circular recess being eccentrically aligned with the axis of rotation, a rotational movement of the sleeve causes translational movement of the slide and the cutting element across the channel to cut the hybrid yarn.

Method for producing an extrudate

Aspects of the disclosure relate to methods and systems for producing a preferably strand-like extrudate.

Method for consolidating an additively manufactured piece

Method for consolidating an additively manufactured piece (10) comprising: - placing said piece (10) in a cavity (21) thermally conductive container (20) and filling said cavity (21) with a liquid or semi-liquid material (30), so that said material (30) directly contacts at least an outer portion of said piece (10), by perfectly surrounding said portion (10), said material (10) being curable, having a maximum operating temperature higher than the lower melt temperature of the piece (10) to be consolidated, and having a positive relative thermal coefficient of expansion, - sealing said cavity (21), - curing said material (30), so that said cured material (30) restricts the movement of said piece (10) in said cavity (21), - heating the container (20), wherein while the temperature is increased, the cured material expands and then create a pressure on the piece (10), and wherein the temperature is increased until reaching a process temperature (T2) equal or higher than the lower melt temperature of the piece (10) to be consolidated and lower than the maximum operating temperature of the material (30); - maintaining said process temperature (T2) so as to consolidate said piece (10), wherein during said heating and during said maintaining, the cured material is an in-situ created monobloc mould for the piece (10).

Method for forming composite device with fiber tows having longitudinal folds

A method (12000) for forming a preformed material (1000), the method comprising: depositing and bonding at least a portion of a fiber roving (1100, 1100C1, 1100C2, 1100C3, 2010, 2020, 2030, 2040, 2050, 2060, 2070, 2080) onto a substrate, wherein the fiber roving includes parallel fibers (100) and the fiber roving has one or more folds (1100F, 2510, 2515, 2520, 2525) in a direction parallel to the direction of the fibers.

Method for consolidating an additively manufactured piece

Method for consolidating an additively manufactured piece (10) comprising: - placing said piece (10) in a cavity (21) thermally conductive container (20) and filling said cavity (21) with a liquid or semi-liquid material (30), so that said material (30) directly contacts at least an outer portion of said piece (10), by perfectly surrounding said portion (10), said material (10) being curable, having a maximum operating temperature higher than the lower melt temperature of the piece (10) to be consolidated, and having a positive relative thermal coefficient of expansion, - sealing said cavity (21), - curing said material (30), so that said cured material (30) restricts the movement of said piece (10) in said cavity (21), - heating the container (20), wherein while the temperature is increased, the cured material expands and then create a pressure on the piece (10), and wherein the temperature is increased until reaching a process temperature (T2) equal or higher than the lower melt temperature of the piece (10) to be consolidated and lower than the maximum operating temperature of the material (30); - maintaining said process temperature (T2) so as to consolidate said piece (10), wherein during said heating and during said maintaining, the cured material is an in-situ created monobloc mould for the piece (10).

Fiber-reinforced composite device and forming method

A preformed material for use in fiber-reinforced composite materials, the preformed material including one or more fiber rovings including parallel fibers wherein the fiber rovings include one or more folds in a direction parallel to the direction of the fibers and wherein the unfolded width of the fiber rovings have a width included in a range from 0.3 mm to 5 mm. The fiber density by volume may be included in a range from 10% to 75% of fibers. The thickness of a fiber roving may be included in a range from 50 μm to 2 mm. The fiber rovings may include from 500 to 12000 fibers. The fiber rovings may include a thermoplastic polymer that forms a first bond within the one or more folds and a second bond between a first fiber roving and a second adjacent fiber roving.

Fiber-reinforced composite device and forming method

A preformed material for use in fiber-reinforced composite materials, the preformed material including one or more fiber rovings including parallel fibers wherein the fiber rovings include one or more folds in a direction parallel to the direction of the fibers and wherein the unfolded width of the fiber rovings have a width included in a range from 0.3 mm to 5 mm. The fiber density by volume may be included in a range from 10% to 75% of fibers. The thickness of a fiber roving may be included in a range from 50 μm to 2 mm. The fiber rovings may include from 500 to 12000 fibers. The fiber rovings may include a thermoplastic polymer that forms a first bond within the one or more folds and a second bond between a first fiber roving and a second adjacent fiber roving.

Method for producing an extrudate

Aspects of the disclosure relate to methods and systems for producing a preferably strand-like extrudate.

Method for consolidating an additively manufactured piece

Methods and systems for consolidating an additively manufactured piece. In one embodiment, methods include the step of combining the additively manufactured piece with another piece, for example with another additively manufactured piece or with a piece that is not additively manufactured (e.g. an insert, foam, etc.), so that during a consolidation step, those pieces are assembled or connected together.

Method for consolidating an additively manufactured piece

Methods and systems for consolidating an additively manufactured piece. In one embodiment, methods include the step of combining the additively manufactured piece with another piece, for example with another additively manufactured piece or with a piece that is not additively manufactured (e.g. an insert, foam, etc.), so that during a consolidation step, those pieces are assembled or connected together.

Method for forming composite device with fiber tows having longitudinal folds

A method (12000) for forming a preformed material (1000), the method comprising: depositing and bonding at least a portion of a fiber roving (1100, 1100C1, 1100C2, 1100C3, 2010, 2020, 2030, 2040, 2050, 2060, 2070, 2080) onto a substrate, wherein the fiber roving includes parallel fibers (100) and the fiber roving has one or more folds (1100F, 2510, 2515, 2520, 2525) in a direction parallel to the direction of the fibers.

Apparatus and method for depositing an elongated fiber tow

A pressure foot device and system comprising a pressure foot device for guiding, forming and applying an elongate fiber tow, wherein the pressure foot device comprises a foot surface comprising a straight foot segment, a groove comprising a flared end and defining a groove midplane, and a foot shaft housing characterized by a foot shaft's axis of rotation that is orthogonal to the straight foot segment and comprised in the groove midplane.

Apparatus and method for depositing an elongate fiber tow

A pressure foot device and system comprising a pressure foot device for guiding, forming and applying an elongate fiber tow, wherein the pressure foot device comprises a foot surface comprising a straight foot segment, a groove comprising a flared end and defining a groove midplane, and a foot shaft housing characterized by a foot shaft's axis of rotation that is orthogonal to the straight foot segment and comprised in the groove midplane.

Apparatus and method for applying an elongate fiber tow

A pressure foot device and system comprising a pressure foot device for forming and applying an elongate fiber tow, wherein the pressure foot device comprises a foot surface comprising a straight foot segment, a groove comprising a flared end and defining a groove midplane, and a foot shaft housing characterized by a foot shaft's axis of rotation that is orthogonal to the straight foot segment and comprised in the groove midplane.

Apparatus and method for applying an elongate fiber tow

Apparatus and method for depositing an elongated fiber tow

A pressure foot device and system comprising a pressure foot device for guiding, forming and applying an elongate fiber tow, wherein the pressure foot device comprises a foot surface comprising a straight foot segment, a groove comprising a flared end and defining a groove midplane, and a foot shaft housing characterized by a foot shaft's axis of rotation that is orthogonal to the straight foot segment and comprised in the groove midplane.

Apparatus and method for applying an elongate fiber tow

A system (2000) for applying an elongate fiber tow (100) onto an object surface (200), the system comprising: a rotating foot device (1100) comprising: a foot surface (1150), configured for facing the object surface (200); and a groove (1130), configured for guiding the elongate fiber tow to the foot surface (1150), the groove (1130) defining a groove midplane (1130MP) as a planar portion along a mid-line (1130ML) of the groove, wherein an axis of rotation (Z) of the foot device is orthogonal to the foot surface and comprised in the groove midplane.