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JP2009511287A |
The invention relates to a deep-rolling roller head ( 1 ) of a deep-rolling tool for deep-rolling, by means of deep-rolling-rollers ( 2 ), radii or recesses ( 3 ) on the main ( 4 ) and lifting bearing journal of a crankshaft, while the c...
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JP4238747B2 |
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JP2009050905A |
To provide a method and an apparatus for forming an internal gear by means of which no under fill occurs and consequently a cycle time of internal gear formation can be shortened even when the internal gear is formed by plastic working o...
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JP2009039721A |
To improve the shape precision and the whole rigidity in a crutch hub while reducing a cost required for this formation as much as possible and preventing the lowering of the positional precision in the peripheral direction of each splin...
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JP2009508002A |
A method of fabricating a component for a substrate processing chamber involves providing a preform having internal and external surfaces, and providing a mandrel having a textured surface with a pattern of textured features comprising p...
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JP2009039759A |
To provide a method of manufacturing an outer ring for a rolling bearing by which the outer ring can be stably formed.The method of manufacturing the outer ring for the rolling bearing includes a rolling formation step where an outer rin...
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JP4230020B2 |
A ball rolling groove 1c is defined in an inner peripheral surface of A ball screwed nut 1 by a rolling process, not by a grinding process so that a ball screwed nut having small diameters or large leads can be manufactured. The surface ...
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JP4223110B2 |
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JP2009022973A |
To provide a method and an apparatus for manufacturing a stepped deformed cross sectional copper bar material by which the flatness of a thin sheet part 9 can be secured by eliminating the occurrence of waving in the thin sheet part 9.In...
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JP2009502508A |
A method of forming a circular sheet-metal blank which rests on a tool rotating about an axis. The sheet-metal blank has a thickness and has a diameter which is small than a diameter of the tool.
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JP4215324B2 |
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JP4216497B2 |
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JP2009012042A |
To provide a method of manufacturing a can body by which a three-piece can is manufactured efficiently and at a low cost.A can body is obtained by thinning a tubular metallic base stock and, next, cutting it into a prescribed length. It ...
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JP2009501084A |
The production process involves deforming the initial material (3) using a shaping die (1) and a rotatable tool (2). The die has a boring (11) along its central axis. The initial material is passed into the boring and pressed between the...
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JP3147482U |
To provide a rolling apparatus capable of easily and visually performing pitch matching work of a plurality of roller dies even by a beginner. In a rolling apparatus for forming a thread on the outer peripheral surface of a blank B by ap...
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JP3147483U |
To provide a rolling apparatus capable of positively maintaining a squareness of a blank when a plurality of rolling roller dies bite into the blank. In a rolling apparatus in which pressure is applied to the outer peripheral surface of ...
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JP4204334B2 |
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JP2008307543A |
To provide a tool for forming screw threads, which tool can reduce the peak value of the minimum energy necessary for forming screw threads.The tool 30 forms multiple screw threads on the surface of a workpiece by being moved relative to...
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JP2008309211A |
To provide a roller bearing cage manufactured by roll forming while reducing its process load, and also to provide its manufacturing method.In the cage which is an integrally rolled product, flange portions are formed at both ends extend...
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JP2008307583A |
To provide a die for manufacturing a screw part having improved loosening preventive effect, and a manufacturing method therefor.One pair of flat dies 30, 40 are the dies for applying form-rolling to thread ridges 20 of a step-lock-bolt ...
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JP2008307578A |
To enhance: the productivity without drastically increasing the setting area of a forming machine; and the forming precision of a formed product in a cold roll forming machine.The cold roll forming machine includes a forming roll apparat...
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JP4202000B2 |
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JP4202081B2 |
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JP4201647B2 |
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JP4201299B2 |
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JP2008302403A |
To provide a method for producing an inner ring and an outer ring of a rolling bearing with an improved yield.A molded object 3 having an outer ring part 4 with a large diameter and an inner ring part 5 with a small diameter, wherein one...
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JP2008296281A |
To provide a method of working a cylinder such as a damper cylinder, which is excellent in yield, also in workability and by which the inside diameter can be set to arbitrary dimensions.In a method of working the cylinder by which thickn...
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JP2008296279A |
To provide a roller type forging machine which applies nearly constant pressure to metal blank passing through between a pair of rotating forging rollers, and thereby can almost uniformize diameter-reduction amount of the worked metal bl...
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JP2008291917A |
To provide a method for manufacturing a race ring for a rolling bearing capable of preventing burrs in a molding step of inner and outer rings for the rolling bearing, preventing damage of a product due to burrs in the molding step, and ...
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JP2008290112A |
To provide a die for form rolling, which has enhanced durability and easily surely manufactures a developing roller having excellent developing characteristics, a form rolling device using the die for form rolling, a method for manufactu...
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JP4189413B2 |
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JP2008284571A |
To provide a female screw machining tool and a method for forming the female screw by which the machining resistance in the case of forming a multi-stripe female screw can be reduced.The female screw 24 can be formed on the inner periphe...
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JP4187921B2 |
The screw has widened flat spots (10) in the outer pressure surfaces of the starting region (6). These act in a radial direction relative to the apex angles. Rounded edges (11) are formed running in the circumferential direction of the t...
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JP4188010B2 |
A heat-resistant self drilling tapping screw adapted for drilling a stainless steel plate is proposed, which heat-resistant self drilling tapping screw has no delayed fracture and can satisfy high corrosion-resistivity and high tensile f...
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JP2008279486A |
To provide a method for manufacturing an outer ring for rolling bearing by which a rolling-formation is attained in a large diameter-enlarging ratio without causing crack in a ring-like base stock and a high precise outer ring for rollin...
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JP2008279481A |
To provide a manufacturing method which can stably form the inner race and the outer race of a rolling bearing.A partially fabricated item 3 includes a large diameter outer race portion 4 and a small diameter inner race portion 5. The ou...
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JP2008275019A |
To provide a fluid bearing device manufacturing method for easily forming a lubricating fluid reservoir part which has high dimensional accuracy without depending on a complicated die assembly or additional lathe machining.A groove rolli...
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JP4179890B2 |
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JP2008266694A |
To provide a plastic working apparatus which can prevent the quality of a workpiece from degrading due to the oxidation of the surface and the like and simultaneously can give a desired heat treatment effect to the surface of the workpie...
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JP2008264821A |
To provide a method for manufacturing a pulley for a clutch, by which method, a pulley having a required shape can be easily worked, and a working time can be shortened, and further its manufacturing cost can be reduced.In the method for...
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JP4175752B2 |
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JP3145947U |
To provide a former with a rolling apparatus which can contribute to energy saving by eliminating the need for a driving means dedicated to a rolling apparatus for driving a rolling roller when rolling a rolling material is continuously ...
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JP4168598B2 |
Elongation in the circumferential direction of a rotary formed body (31) is produced only within a model zone (M), and the approximate toric plate shape is maintained as the overall shape of the body (31), and the rotation axis (O) of th...
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JP4170085B2 |
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JP4168373B2 |
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JP4164920B2 |
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JP3145390U |
To provide a former which can be used as a four-stage former and can consistently manufacture a bolt which continuously performs from heading to screw rolling as needed. A die block 2 is divided into a first die block 2a that supports a ...
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JP4162070B2 |
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JP4159208B2 |
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JP2008221236A |
To provide a rolling-form die, wherein in the case of introducing a blank, the slipping of the blank is simply prevented to improve the processing accuracy of a male-screw.Related to a segment die 20 in a rotary-type screw rolling-form d...
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