Brush-like grindstone

BRUSH-LIKE GRINDSTONE

A brush-like grindstone (1) has threadlike grinding elements (2) each being a thread that is a collection of long inorganic fibers and is impregnated with resin and solidified. To grind work (W), the grindstone (1) is moved relative to the work (W) with the forward ends of the threadlike grinding elements (2) pressed against the work (W). In order to prevent the grinding elements (2) from breaking, each threadlike grinding element (2) is curved from its base end to its forward end with high hardness of the grinding elements (2) maintained. Also, the grinding elements (2) are formed in an elliptic or oblong cross-sectional shape whose minor axis is aligned with the direction of the curve. Therefore, the grinding elements (2) have extremely high rigidity in the direction perpendicular to the direction of the curve but they easily deform in the direction of the curve. Consequently, the grinding elements (2) softly engages the work (W) at their forward ends and, when excessive force acts on ...

BRUSH-LIKE GRINDSTONE

A brush-like grindstone (1) has threadlike grinding elements (2) each being a thread that is a collection of long inorganic fibers and is impregnated with resin and solidified. To grind work (W), the grindstone (1) is moved relative to the work (W) with the forward ends of the threadlike grinding elements (2) pressed against the work (W). In order to prevent the grinding elements (2) from breaking, each threadlike grinding element (2) is curved from its base end to its forward end with high hardness of the grinding elements (2) maintained. Also, the grinding elements (2) are formed in an elliptic or oblong cross-sectional shape whose minor axis is aligned with the direction of the curve. Therefore, the grinding elements (2) have extremely high rigidity in the direction perpendicular to the direction of the curve but they easily deform in the direction of the curve. Consequently, the grinding elements (2) softly engages the work (W) at their forward ends and, when excessive force acts on ...

POLISHING COMPOSITE MATERIAL, POLISHING TOOL, POLISHING ROTARY TOOL, AND MANUFACTURING METHOD OF POLISHING COMPOSITE MATERIAL

PROBLEM TO BE SOLVED: To provide a polishing composite material capable of suitably polishing metallic work, a polishing tool using the polishing composite material, a polishing rotary tool, and a manufacturing method of the polishing composite material. SOLUTION: A sheet-shaped polishing composite material 1A is a material that can be used as a sheet-shaped abrasive material in the polishing rotary tool, and fixed in a sheet shape by second thermosetting resin 32 having elasticity while a plurality of fiber bundles 2 made by uniting a plurality of inorganic continuous fibers 20 by first thermosetting resin 31 with high stiffness are arranged in parallel at predetermined intervals. The inorganic continuous fibers 20 are glass continuous fibers, alumina continuous fibers, boron continuous fibers, or silicon carbide continuous fibers and the like. COPYRIGHT: (C)2006,JPO&NCIPI ...

BRUSH FOR GRINDING MACHINE

PROBLEM TO BE SOLVED: To provide a brush for a grinding machine capable of securely holding a holder for holding a linear grinding material inside a brush case and easily adjusting projecting dimension of the linear grinding material from the brush case even when the diameter of the brush case is reduced. SOLUTION: In the brush 10 for the grinding machine, a long hole-shaped opening part 21a extended to the axis direction is formed on a cylindrical peripheral wall part 21 of the brush case 2, and a screw hole 12b is penetratingly formed on the holder 12 for holding the linear grinding material 11 in the direction orthogonal to the axis direction. A fixation screw 3 is fastened from the opening part 21a side so that a tip part 30 of the fixation screw 3 abuts on the inner peripheral face of the peripheral wall part 21, and the holder 12 is pressed on and fixed to the inner peripheral face on the opening part 21a side of the peripheral wall part 21. A thin wall part 21c having an outer peripheral ...

BRUSH-LIKE GRINDING WHEEL

PROBLEM TO BE SOLVED: To provide a brush-like grinding wheel suitable for grinding a free-curved surface or the like. SOLUTION: In the brush-like grinding wheel 1, a large number of linear abrasive materials 2 are fixed on the base end side to constitute a bundle 3 of a linear abrasive material, and the bundle 3 of the linear abrasive materials is a convex curved surface at the leading end part 30. When a recessed part W1 of free-curved surface of a workpiece W is polished by raising the bundle 3 of the linear abrasive materials, the leading end part 30 of the bundle 3 of the linear abrasive materials does not deeply abut on the projected part W2 even if there is the projected part W2 near the recessed part W1. Since the excess part does not deeply ground, the brush-like grinding wheel 1 thereby is suitable for grinding the free-curved surface. COPYRIGHT: (C)2007,JPO&INPIT ...

Brush-like grindstone

A brush-like grindstone (1) has threadlike grinding elements (2) each being a thread that is a collection of long inorganic fibers and is impregnated with resin and solidified. To grind work (W), the grindstone (1) is moved relative to the work (W) with the forward ends of the threadlike grinding elements (2) pressed against the work (W). In order to prevent the grinding elements (2) from breaking, each threadlike grinding element (2) is curved from its base end to its forward end with high hardness of the grinding elements (2) maintained. Also, the grinding elements (2) are formed in an elliptic or oblong cross-sectional shape whose minor axis is aligned with the direction of the curve. Therefore, the grinding elements (2) have extremely high rigidity in the direction perpendicular to the direction of the curve but they easily deform in the direction of the curve. Consequently, the grinding elements (2) softly engages the work (W) at their forward ends and, when excessive force acts on ...

POLISHING TOOL AND PROCESSING METHOD

PROBLEM TO BE SOLVED: To provide a polishing tool suitable for deburring the rear surface of a work and polishing an irregular surface on the rear side of the work, and to provide a processing method. SOLUTION: When burrs W10 produced on the rear surface of the work W are removed, this polishing tool having a coiled spring 50 in the holder 30 is used. When the holder 30 is moved upward so that a stone 10 is hooked to the periphery of a through-hole W1 on the rear side of the work W, the coiled spring 50 biases a shank 21 upward, and the stone 10 is always properly brought into elastic contact with the rear surface side of the work W. Consequently, the area to be processed of the work W on the rear surface can be polished without a time-consuming adjustment. COPYRIGHT: (C)2009,JPO&INPIT ...

BRUSH-LIKE GRINDING WHEEL

PROBLEM TO BE SOLVED: To provide a brush-like grinding wheel which can be efficiently manufactured even when a linear abrasive material formed by curing a large number of inorganic filaments with a resin matrix is used and by which various types of brush-like grinding wheel can be manufactured. SOLUTION: A wire rod sheet 2 is composed of a first wire rod group 10, a second wire rod group 20, and first and second coupling sheets 30, 40 for coupling root parts 11, 21 of the wire rod groups 10, 20 in the brush-like grinding wheel 1. The first and second wire rod groups 100 are held to an abrasive material holding body 3 in a state of being arranged in the same direction as a result of folding the coupling sheets 30, 40 into a cross-sectional U-shape. COPYRIGHT: (C)2005,JPO&NCIPI ...

Brush-like grindstone

A brush-like grindstone (1) has threadlike grinding elements (2) each being a thread that is a collection of long inorganic fibers and is impregnated with resin and solidified. To grind work (W), the grindstone (1) is moved relative to the work (W) with the forward ends of the threadlike grinding elements (2) pressed against the work (W). In order to prevent the grinding elements (2) from breaking, each threadlike grinding element (2) is curved from its base end to its forward end with high hardness of the grinding elements (2) maintained. Also, the grinding elements (2) are formed in an elliptic or oblong cross-sectional shape whose minor axis is aligned with the direction of the curve. Therefore, the grinding elements (2) have extremely high rigidity in the direction perpendicular to the direction of the curve but they easily deform in the direction of the curve. Consequently, the grinding elements (2) softly engages the work (W) at their forward ends and, when excessive force acts on ...

Brush-like Grindstone

A brush-like grindstone (1) has threadlike grinding elements (2) each being a thread that is a collection of long inorganic fibers and is impregnated with resin and solidified. To grind work (W), the grindstone (1) is moved relative to the work (W) with the forward ends of the threadlike grinding elements (2) pressed against the work (W). In order to prevent the grinding elements (2) from breaking, each threadlike grinding element (2) is curved from its base end to its forward end with high hardness of the grinding elements (2) maintained. Also, the grinding elements (2) are formed in an elliptic or oblong cross-sectional shape whose minor axis is aligned with the direction of the curve. Therefore, the grinding elements (2) have extremely high rigidity in the direction perpendicular to the direction of the curve but they easily deform in the direction of the curve. Consequently, the grinding elements (2) softly engages the work (W) at their forward ends and, when excessive force acts on ...

POLISHING TOOL

PROBLEM TO BE SOLVED: To provide a polishing tool which is improved in compatibility and abutting performance of a grindstone tip with respect to a workpiece, exerts improved deburring performance and polishing performance, and suffers from little abrasion of the grindstone tip. SOLUTION: The polishing tool 1 has a cylindrical shank 2 to be chucked by a rotary device such as a rotary air drill, a grindstone tip support member 3 coaxially attached to the shank 2 and formed of a piano wire, and the grindstone tip 4 coaxially connected to a free end of the grindstone tip support member 3. In the grindstone tip 4, a plurality of bundles of inorganic continuous fibers are oriented in a predetermined direction, and the tip of each of the inorganic continuous fibers reaches a machining surface (a front end face 401 and a side surface 402). The grindstone tip support member 3 has elasticity imparted thereto, and therefore the machining surface of the grindstone tip 4 softly abuts on a machining ...

POLISHING MACHINE AND POLISHING METHOD

PROBLEM TO BE SOLVED: To provide a polishing machine and a polishing direction capable of stably exhibiting performance of this kind of brush-like grinding wheel by always keeping constant a workpiece notch mount of the brush-like grinding wheel using inorganic continuous fiber. SOLUTION: A tool holding body 6 for holding the brush-like grinding wheel 10 is supported on a holder body 7 movably in the direction approaching the workpiece and in the direction separating from the workpiece. The tool holding body 6 for holding the brush-like grinding wheel 10 is energized by a helical compression spring 80 with a predetermined energizing force toward the workpiece, so that the notch mount in the workpiece can be kept constant even when a linear grinding material using the inorganic continuous fiber in the brush-like grinding wheel 10 wears. COPYRIGHT: (C)2005,JPO&NCIPI ...