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Patent Searching and Data


Matches 801 - 850 out of 4,232

Document Document Title
JP2009131874
To provide a method of manufacturing a ring product, for example, an inner-ring race of a bearing by making fiber flow coincide with a wide annular recessed groove when forming the wide annular recessed groove in the outside diameter par...  
JP2009095883
To provide a method for manufacturing a rolling shaft with a deep groove having thin diameter by using rolling dies, with which a screw shaft with the deep groove and the thin diameter can be manufactured.The method for manufacturing the...  
JP2009064039
To provide a process of making a master die used in manufacturing several thousands of high quality metal products, such as decorative aluminum cans, at high speed.This invention relates to the method for impressing holographic images 16...  
JP2009050905
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...  
JP2009050899
To provide a method for forming a rolled thread which can produce a screw having a small dent at a thread peak without depending on a special rotation number by using non-chlorine lubricant having good lubricity.Rolling is carried out at...  
JP2009050860
To enable to perform in-feed form-rolling even in the case of being a workpiece having large tooth-shape.Dies 11 are constituted with non-truth round-shaped columnar member in the cross section, so that the diameter from the center axis ...  
JP2009039759
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...  
JP2009039721
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...  
JP2009022997
To provide a workpiece supporting mechanism for two-die form rolling which can perform form rolling of a tubular workpiece such as a small-diameter pipe or thin-walled pipe at low costs without a fall or breakage of the workpiece.The inv...  
JP2009022973
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...  
JP2009012080
To provide an external tooth forming roller suitably used in a cup-shaped gear manufacturing apparatus and method which enable a cup-shaped gear to be manufactured by short-time work and with a small forming power.The external tooth form...  
JP2009012042
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 ...  
JP2008307578
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...  
JP2008307543
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...  
JP2008309211
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...  
JP2008307583
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 ...  
JP2008302402
To provide a method for manufacturing an outer ring for bearing by which occurrence of crack and underfill on an outer ring blank can be prevented and a manufacturing yield can be improved.In the method of manufacturing the outer ring 10...  
JP2008302408
To provide round dies for form rolling capable of easily performing form rolling on a plurality of workpieces or the same portion of a workpieces to be form-rolled with one form rolling board, and a form rolling method of round dies for ...  
JP2008302423
To provide a form-rolling die with which production efficiency can be improved by shortening the time for setting a workpiece to be form-rolled onto a die for retaining ring groove.The workpiece 40 is arranged by adjusting a position in ...  
JP2008302403
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...  
JP2008296281
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...  
JP2008296279
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...  
JP2008290112
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...  
JP2008291917
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 ...  
JP2008291950
To restrain curving of a shaft body when a male screw with an odd number of threads is formed at a chamfering part and a thread part to less than an allowable upper limit.A raw material W of a planetary shaft body comprises a body screw ...  
JP2008284571
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...  
JP2008281142
To provide a screw shaft for a ball screw mechanism and a manufacturing method for screw shafts capable of suppressing the incomplete thread part at low costs.Even in a case of forming a large diameter flange part 1b adjacently to a male...  
JP2008279481
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...  
JP2008279486
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...  
JP2008272828
To provide a working method for making the end part of a tube thin precisely and stably without depending on machining and being accompanied with a reduction in the outer diameter.After holding the basic end part of a tube stock 10 to a ...  
JP2008275019
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...  
JP2008266694
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...  
JP2008264821
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...  
JP2008238215
To provide a method for manufacturing a rolling product with helical projection capable of reducing waviness along a flank line direction.A raw material is subjected to rough form rolling, and then finish form rolling. In a rough form ro...  
JP2008229665
To provide a method and an apparatus for form-rolling a gear which are suitable for extending the service life of a roller die and shortening a forming cycle time.The method for applying the form-rolling to the outer peripheral part of a...  
JP2008221236
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...  
JP2008221272
To provide a multiplex screw form-rolling die, improving the durability of a screw-working part near the edge surface of the die body, and a method for manufacturing a multiplex screw bolt using the die.In the multiplex screw form-rollin...  
JP2008221228
To provide a rolling-form die, wherein while securing the rolling-formed precision of a screw with the rolling-form die, the working time of this rolling-form die is shortened to attain the manufacturing cost reduction.A round die 10 has...  
JP2008200710
To provide a method for manufacturing rolling dies, which method can reduce a time for rolling toothed surfaces for rolling, and can reduce a manufacturing cost.When rolling dies for rolling a dual thread having two different leads are m...  
JP2008188599
To provide a method of manufacturing a refrigerant tube with detecting function excellent in heat exchanging capacity without lengthening the piping of a heat exchanger.In a step where a medium-diameter tube 21 and a small-diameter tube ...  
JP2008173674
To provide a method of inexpensively manufacturing a highly precise thin-walled ring such as a seal ring to be incorporated in a shell needle bearing, which is thin in wallthickness and is necessary to sufficiently ensure the dimensions ...  
JP2008168315
To eliminate the insufficiency of the steel blank on the end surface and the surface part of a ring blank so as to prevent the occurrence of burrs on the end surface and the riding up of the blank on the surface part in the case of manuf...  
JP2008155229
To excellently transfer the shape of the roughened working surface of a transferring body side to the workpiece side.A circular rod shape die 37 is locked to the output shaft 351 of a motor 35 mounted on a fixed base 34. The roughened wo...  
JP2008149327
To make it possible to perform roll-forming processing with high accuracy with a compact and low cost constitution.A roll-forming apparatus 10 includes a first mandrel 30 to be fitted to a first spindle 18 of a main shaft table 14, and a...  
JP2008138235
To provide a method which shows an excellent effect of having reformed a rolling forming face of a rolling die, by subjecting the rolling die to all steps of shot peening treatment, nitriding treatment and oxidation treatment.This rollin...  
JP2008126303
To provide an apparatus for working fine recessed parts with which the fine recessed parts are formed with regular arrangement in the arrangement in a direction along the axial line of circular surface to be worked and the fine recessed ...  
JP2008119753
To provide round dies for form rolling, which reduces the number of retoolings in form-rolling a screw.A pair of round dies 20 and 30 for form rolling are respectively column-shaped and peripheral surfaces thereof are respectively separa...  
JP2008114346
To provide a finishing method for realizing improvement of machining efficiency by reducing dispersion of depths of finally obtained fine recessed parts as much as possible when removing swollen parts generated around the fine recessed p...  
JP2008110360
To provide a method for manufacturing metal balls, capable of efficiently manufacturing the metal balls without heating a stock.The method for manufacturing metal balls enables the molding of the metal balls from a long-shaped material S...  
JP2008106827
To realize a manufacturing method capable of providing an outer ring for a radial ball bearing capable of securing practically sufficient accuracy even when finishing after hardening treatment is omitted.An intermediate material 10 for t...  

Matches 801 - 850 out of 4,232