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JP2010522083A |
The invention describes a method of machining a toothing (7) on an outer circumference (6) or an inner circumference of a work piece (2) made of pressed and sintered powder metal, by means of a rolling process carried out on the toothing...
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JP4491958B2 |
To prevent a shoulder part of a cylindrical member from being thinned and folded. Since forming rollers 30 and 40 are moved from an opening end side of a cylindrical part 52 of a cup-shaped member 50 to a bottom part 51 side in the direc...
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JP2010137265A |
To provide a plastic processing method for executing in order a burring step for forming a boss at the center hole brim part of a disc-like raw material by pressing the center hole brim part of the disc-like material onto the burring hol...
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JP2010521310A |
A novel method of manufacturing a toothed disc is taught wherein the teeth can be cold formed to a relatively high set of tolerances in a relatively time-efficient manner. A cold-formed disc blank with an annular thickened ring about its...
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JP4484463B2 |
The invention is aimed at the provision of an automatic releasing-type rolling head for forming a tapered thread on a pipe in which the shock generated at the end of the thread rolling operation is alleviated and a thread automatic rolli...
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JP4480395B2 |
A headed multi-lobed blank, method of manufacturing a self-tapping screw from the blank, and resulting multi-lobed self-tapping screw for joining thin workpieces provides desirable thread-forming characteristics at the conical tip and bo...
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JP4485008B2 |
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JP4481843B2 |
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JP2010125520A |
To provide a form-rolling method by which a recessed part is clearly formed in a cylindrical base stock even if the recessed part has a shallow trapezoidal groove shape on the assumption that the cylindrical base stock is freely rotated....
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JP2010125478A |
To provide a method of producing no burrs at both ends of a worked part so as not to require a work of removing burrs. A plurality of demarcated shaft parts 3, 4, 5 are formed on a shaft 1 by juxtaposing a plurality of outer-periphery gr...
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JP4475616B2 |
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JP4479254B2 |
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JP4476439B2 |
To provide a preform for forming a clutch drum capable of manufacturing at a low cost a clutch drum for a double clutch having a No.1 drum portion W1 which opens in one axial direction, a No.2 drum portion W2 which opens in the other axi...
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JP4474179B2 |
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JP2010099729A |
To provide a sequential forming apparatus that improves productivity of forming components by enhancing freedom of movement of a forming roller, and also to provide its method.In the sequential forming apparatus 1, a component 2 to be fo...
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JP2010094692A |
To provide a form rolling method and an apparatus thereof, capable of changing a speed in form rolling and a speed of reciprocation while preventing the speed of movement of a flat die from being regulated by an initial speed thereof at ...
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JP4455934B2 |
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JP2010082634A |
To extend the service life of a roll die by reducing the load to a roll die and to reduce the energy consumption of rolling work by finding out an appropriate rolling pattern to a workpiece.Roll die forcing devices 17, 18 are forced in a...
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JP4450903B2 |
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JP4451493B2 |
A method for producing a contour strip includes a rough rolling step for rolling a plate material to form a contour molding material, a slitting step for slitting the contour molding material at the middle position in the width direction...
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JP4450565B2 |
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JP2010075962A |
To achieve the improvement in the accuracy of a worm and the improvement in the efficiency of a forming operation by optimizing the number of rotations in a shaft during form-rolling.The outer circumferential part of each roll die 23 is ...
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JP4447683B2 |
The pin, for penetration into a steel, concrete, or masonry substrate, has a head (110), a tapered shank (120), a point (130) and a transition zone (140) between the tapered shank and the head. The point (130) is joined unitarily to the ...
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JP4437159B2 |
A method for impressing holographic images or holograms in the surface of metal objects such as aluminum cans. The surfaces of metal shims and print rolls bearing holograms are hardened as by coating them with thin amorphous diamond coat...
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JP4439666B2 |
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JP4434366B2 |
To directly and precisely produce gear-shaped parts having a desired diameter rib regardlessly of an internal gear or an external gear. While clamping disk stocks 30A, 30B at their inner peripheral parts, the stocks are rotated together ...
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JP2010051981A |
To provide a link member for transmission chains, a link member that improves the yield of materials in manufacturing and that has high strength and high quality, to provide a method of manufacturing the same, and also to provide a trans...
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JP2010052038A |
To provide a technology capable of forming a boss part thicker than a dehisced portion while utilizing the dehiscing work capable of preventing any breakage by suppressing the plastic deformation in a drawing apparatus and a drawing meth...
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JP2010051987A |
To provide a method of manufacturing an inner face resin lining steel pipe having a rolled thread the lined inner face resin of which is flawless in the screw part.After heating an end part of the inner face resin lining steel pipe and t...
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JP4427750B2 |
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JP4429944B2 |
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JP4425696B2 |
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JP2010043696A |
To provide a male screw member and a method for manufacturing the same, saving resources and reducing the weight without extremely reducing the screw strength.This male screw member 10, as its feature, includes one or more thickness redu...
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JP2010036215A |
To provide a flange forming apparatus that forms a flange in the end of a rod material.A pulley manufacturing apparatus 10 includes a spindle 30 (supporting means), a forming mold 40, a rotary means 50, and a movement means 60. The spind...
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JP4417961B2 |
Inner sides (8, 9) of the casings (6, 7) on each side of the rotation axis (15) of the split-pin crankshaft (5), and radially spaced from it, have extension sections (26, 27). These extend in the direction of the rolling force (12), to b...
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JP4407919B2 |
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JP4409943B2 |
A compacted and sintered gear blank is supported for rotation about a first axis adjacent a tool supported for rotation about a second axis transverse to the first axis. The tool has a series of gear cutting teeth and an adjacent set of ...
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JP2010503372A |
The invention relates to a rear windscreen wiper comprising an electric drive assembly, in particular for a motor vehicle. Said wiper comprises an armature shaft (10) and an armature core (15), the armature shaft (10) being mounted by me...
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JP2010017737A |
To provide a mechanism for offsetting bend deflection of a tool shaft supported in cantilever, which is generated in accordance with clamping force generated in an internal gear rolling machine having the tool shaft.Stress and positional...
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JP4400882B2 |
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JP4396876B2 |
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JP2009299743A |
To provide a manufacturing method of intermeshing shaft which can improve working efficiency when intermeshing an intermeshing member of the intermeshing shaft and an intermeshing member of the other element.A sun screw 12 as an intermes...
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JP2009544901A |
Method for the production of washers ribbed on one or both sides, wherein the rib profile either is achieved by rolling the raw material of the washers with the washers only after the rolling of the rib profile are punched out or by feed...
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JP4379206B2 |
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JP4371191B2 |
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JP4368500B2 |
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JP4367194B2 |
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JP4365481B2 |
A universal joint device, wherein a generally cylindrical socket part (7) having a converged opening part (5) at the tip thereof and a mounting opening part (6) at the basc end thereof is formed projectedly by pressing a steel plate arm ...
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JP4365140B2 |
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JP4369424B2 |
A method and device are disclosed for producing tubes that are at least partially profiled on their interior and preferably on their exterior from a hollow cylindrical blank (3), using a mechanical cold forming method, wherein the end of...
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