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JP2005103572A |
To prevent the performance of a form rolling roller from being degraded due to the cracks caused on the form rolling roller or the like by eliminating large stress concentrating parts from the form rolling roller for grooving.In a method...
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JP2005103563A |
To provide a flow forming method and a flow forming device by which a cylindrical member having internal teeth on the inner periphery of a cylinder part is plastically worked in one forming stage while suppressing the occurrence of crack...
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JP2005103602A |
To provide a tube with a grooved inner face capable of preventing a stock tube from being broken in its manufacturing process and excellent in grooving property, and to provide a method for manufacturing the tube.A holding plug 2, a plug...
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JP2005095962A |
To provide a rolling method capable of easily forming a partially rolled portion at an arbitrary position of a strip, a rolled product manufactured by the method, and a rolling device.The rolling device has a first roll 11 disposed so th...
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JP3632964B1 |
There is provided a mandrel (10) for spin forming that has a backing plate (20) with removably attached mandrel portions (24,26) and mandrel spacers (36), such that the mandrel (10) is adaptable to numerous configurations. The various co...
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JP2005076866A |
To provide a process for manufacturing a variable flange of a continuously variable transmission which can provide good workability in spinning process and impart sufficient hardness by carburizing and quenching process.A steel material ...
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JP3632709B2 |
PURPOSE: To provide such a forming device for a ring-shaped work as is capable of performing efficiently and accurately multistage working by one working device. CONSTITUTION: A ring-shaped work 12 is selectively loaded on any one of plu...
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JP3631816B2 |
To reduce the cost of material and the weight required for forming a tubular wall and to shorten time required for it by drawing the tubular part of a sheet metal member in the axial direction to form the tubular wall. The inner surface ...
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JP2005066608A |
To provide a ball screw shaft manufacturing method capable of manufacturing a form rolling ball screw shaft of high accuracy and high quality.A screw shaft stock with a ball screw groove form-rolled therein is subjected to a heat treatme...
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JP2005066607A |
To provide a rolling die for manufacturing a linear motion guide rail capable of affording a dimensionally precise raceway groove for rolling bodies after completing heat treatment of a guide rail blank.A convex-ridged portion 22 shaped ...
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JP3627654B2 |
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JP3627650B2 |
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JP3624480B2 |
To provide a ring body forming device which shortens the working time and at the same time, can secure a prescribed working precision, and to provide ring body forming method. A mandrel 5 is arranged at the left side of a forming roll 3....
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JP2005047450A |
To provide a method for manufacturing a vehicle wheel capable of obtaining a thin thickness and light weight, improving productivity and achieving stable manufacturing.A preform 50 of the vehicle wheel having a disc 51 and a rim original...
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JP3623665B2 |
To provide a favorable internal tooth accuracy even if drawing quantity by a roller is great by formed the tooth end shape in the cylindrical side of a spline internal tooth in such a shape that the tooth height is gradually lowered towa...
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JP2005042379A |
To form a bolt part 5 without reducing strength in an end part in a deformed wire 1.The bolt part 5 is formed in the end part of the deformed wire 1 having a plurality of spiral projection strip parts 2 on a surface, so that a screw is f...
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JP2005042904A |
To provide a bolt capable of effectively preventing the scoring and seizure caused by oblique assembling.This bolt 1P has the cut shape 3 of an angle of 60°(β) - 80°(α) to a central shaft AX of the screw part 2, at a terminal end sid...
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JP2005040844A |
To provide the manufacturing method of a tube with an inner groove capable of preventing breakage of a stock tube in a manufacturing step.A holding plug 2, a plug shaft 4, and grooved plugs 5a and 5b are disposed inside a stock tube 1. W...
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JP3621580B2 |
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JP3618587B2 |
To obtain products without cracks at a groove part, a groove shoulder part, or the like of a ring product caused when special steels of a difficult-to-process property is cold rolled at a good yielding by cold rolling a surface layer of ...
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JP2005028365A |
To provide a rolling method using a round die in which a rest for supporting a work is not used during rolling.A material M is dropped on the upper face of a support blade mounting table 53. The material M is received on the upper face a...
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JP2005030576A |
To provide a bolt and a manufacturing die capable of effectively preventing galling and seizure caused by oblique assembling.In this bolt IP, a screw part inlet width W is enlarged by forming the cut shape 3 on a starting end part of a c...
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JP2005501732A |
An apparatus for manufacturing a formed body having a concentric hub. The concentric hub is formed from a round blank, with a rotating tool plate on which the round blank lies, a work roller and a follower roller capable of being infed a...
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JP3610653B2 |
Each of specific rollers which corresponds to one of the grooves is disposed in a circumference of the metal pipe at equal intervals and is pressed against the periphery of the metal pipe 10, thereby forming a plurality of the grooves at...
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JP2005007434A |
To obtain a shaping method by which a ring gear with a side flange can be highly precisely molded with one component.An excess thickness part (13) is left at least to one end part. And at the same time, a coarse tooth ring gear (10-1A) w...
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JP3610598B2 |
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JP2005000937A |
To provide a method and an apparatus for producing a tube with grooves on the inner surface with which the long tube with the grooves on the inner surface can be mass-produced at a low cost without developing any defect.In the inner part...
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JP2005005248A |
To provide a method of forming fine cavities on a filament suitable for mass production.A fine cavity forming device forming fine cavities on the surface of a heated filament wire comprises a fine cavity forming means having an array of ...
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JP3606949B2 |
The method concerns impact rolling solid or hollow cylindrical components (1) which are fed in the direction of their longitudinal axis (1'). At least one impact roll (4, 5) in an external rotating roll head (2, 3) performs a specified s...
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JP2004358475A |
To provide a method for forming an outer peripheral tooth which can prevent the occurrence of a burr on the end face of the outer peripheral tooth when the outer peripheral tooth is formed by rolling with a rolling die and a finishing ro...
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JP3605830B2 |
The continuous annealing furnace has two or more treatment chambers sequentially connected with each other and respectively filled with a gas atmosphere differing in carburizing property, which includes a carburizing chamber wherein roll...
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JP3604325B2 |
To provide a form rolling die for a screw having a full dog point which can prevent an outer circumferential surface of a work to be form-rolled from being slipped, and prevent the separation and breakage of a male screw or the like of a...
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JP3602186B2 |
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JP2004344978A |
To provide deep rolling tools which are capable of improving performance and shortening machining time.The deep rolling apparatus includes first and second housings, and three tool bodies which can be placed radially around a workpiece i...
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JP3598391B2 |
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JP3599092B2 |
To provide an inner surface-grooved pipe that has high adhesion property with a fin when incorporated into a heat exchanger, can improve heat transfer performance, and at the same time can speedily roll an inner- surface groove, and a ro...
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JP3596278B2 |
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JP3593753B2 |
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JP3593452B2 |
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JP2004322110A |
To provide a working method capable of maintaining high-accuracy forming by rolling of the work composed of a material having high strength and low ductility without giving rise to cracking etc., on the surface of the work to be the caus...
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JP3590957B2 |
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JP3589068B2 |
To increase a working speed and to reduce a production cost by forming a preformed part having a material supply quantity corresponding to the shape after a plate like bar is rolled by a rolling roll by plastic deformation, rolling the p...
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JP3587865B2 |
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JP3585547B2 |
PURPOSE: To obtain a deformed cross sectional band material having the same thick parts as the thickness and inclining angle at the difference of step parts with roll-forming by arranging the projecting parts to the suitable positions un...
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JP3585420B2 |
To provide a rounded member for a chain and a method of manufacturing the rounded member, preventing the occurrence of a wavy phenomenon at the end face of the rounded member, impeding the leakage of a lubricant proceeding in the axial d...
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JP2004298898A |
To effectively prevent the occurrence of crack in CRF-working of a bearing race composed of an outer race or an inner race which is obtained by forging a tower of an outer race blank and an inner race blank and separating the tower.The t...
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JP3581259B2 |
To provide an NC control system for realizing more complicated and highly accurate working by controlling the plural drive shafts of an NC machine tool in real time by a software method and simultaneously controlling respective mechanism...
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JP3580578B2 |
PURPOSE: To finely adjust the position in the radial direction of a form rolling roller by the rotor to rotate in equal angle around the rotating axis an eccentric bearing member which is rotated with the axis off set against the form ro...
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JP2004290994A |
To provide a means to accurately detect and remove defective goods as well as to speed up an adjusting work of a rolling pressure by quantitatively measuring the rolling pressure and visualizing its fluctuations in a forming of rolling m...
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JP3578500B2 |
A method of producing a spindle that can be easily press fit into a knuckled suspension arm with high productivity. A round bar is forged by a header to form a work in process part which is, in turn, thermally refined. If necessary, shot...
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