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JP3871842B2 |
To provide a forming method for ring products without burn-in markings which prevents burn-in markings in the peripheral side of the ring products owing to burns between a sizing die and a workpiece, deterioration in quality, decrease in...
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JP2007010127A |
To provide a looseness preventive bolt and its manufacturing method wherein looseness preventing effect is surely exhibited, fine accuracy control is not required, and enhanced molding effect is exhibited.This bolt comprises a head part ...
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JP3867872B2 |
To correctly press mold a groove shape by placing two support rollers inside stoppers on a plane in parallel with the groove molding face of a hard pressure contact body of rectangular parallelepiped of a plane support rectilinearly reci...
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JP3864507B2 |
To provide a manufacturing method for various kinds of a pulley integrated type rotor at a low price. This manufacturing method of a pulley integrated type rotor is constituted of performing plastic processing on a disc material into a f...
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JP3866847B2 |
To provide a rotary bushing support device for work for a form rolling device which does not generate bending to a work W having a small diameter.low toughness and can form roll a good product. The device is provided with rotary bushings...
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JP2006529003A |
A method of flow forming sintered metal parts. The first step is forming a round disk by conventional powder metal process. The disk can be a donut shape part with or without a flange on one side of its outer diameter. The disk can then ...
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JP2006346684A |
To provide an infeed form rolling die capable of easily form-rolling a screw shaft for preventing a ball from being dropped, and to provide a screw shaft of a ball screw mechanism formed by using the die.When the screw shaft 1 form-rolle...
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JPWO2005035159A1 |
The roll support block 10 has four stages of rolling rotary rolls 6 to 9, and the roll support block 10 moves by being guided by the guide hole 13 of the pipe holder 5. The rolling rotary rolls 6 to 9 are pressure-welded to the hollow pi...
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JP2006342900A |
To provide a ball screw device with a screw shaft for preventing the fall-off of balls and a nut member while avoiding trouble such as bending or non-uniformity of the effective diameter of a screw groove, and to provide rolled dies to b...
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JP2006341257A |
To provide a working apparatus and working method of fine recessed part by which fine recessed parts are formed accurately on the inner peripheral surface or the outer peripheral surface of a workpiece, the reduction of the cost of worki...
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JP2006342971A |
To reduce the number of processing steps while ensuring worm gear accuracy satisfactorily.A work material is positioned between a first rolling die 100 and a second rolling die 101 by rotation of the rolling dies, and a servomotor 76 for...
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JP2006341287A |
To provide a method for manufacturing a transmission component provided with an internal gear having larger rotation-symmetry and higher accuracy.The method is for manufacturing an internal profile by use of a mandrel working on the inne...
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JP3860904B2 |
To obtain the center stand device for the form rolling machine, by which a distance between centers is automatically moved so that it corresponds to the length of a work even when the length of the work is changed, the work is automatica...
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JP2006334613A |
To provide a fine recessed part working device capable of forming fine recessed parts with excellent accuracy on the circumferential surface of a work.The fine recessed part working device comprises a form roller 15, a roller supporting ...
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JP2006336800A |
To manufacture a connecting rod while keeping a treatment temperature lower to suppress the occurrence of burrs.Rollers 40, 42 are arranged on both sides of the side face of a disc raw material 30 with their axes of rotation parallel to ...
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JP2006334618A |
To provide a fine recessed part working device capable of forming fine recessed parts with excellent accuracy on a circumferential surface of a work.The fine recessed part working device comprises a form roller 16 having a projecting par...
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JP2006326654A |
To provide a device for working minute recesses, by which minute recesses are accurately formed on the outer peripheral surface of a cylinder part of a workpiece.The device is provided with: a headstock 5 and a tailstock 6, which rotatab...
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JP2006326669A |
To provide an apparatus for precisely forming fine recessed parts on the circumferential surface of a workpiece and capable of achieving reduction of forming cost.The apparatus for forming the fine recessed parts on the inner circumferen...
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JP3127524U |
To reduce the lack of mountain teeth in a selection. This is a lorlet piece 6 for rolling a material end face W1 by rolling around an end face W1 of a cylindrical material W and turning around an axis of the material W. The base 6a is fo...
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JP2006326600A |
To provide a method capable of easily producing a screw stem while reducing assembling man-hours and preventing the deterioration of quality.In a first process, a core material 18 having almost the same length as the stem material 12 is ...
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JP3854978B2 |
To provide a forming disk which is used to perform form rolling of a heat exchange fin tube by a method for increasing the heat transfer coefficient by changing the shape of a fin and for enhancing the heat transfer coefficient by flexin...
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JP3855383B2 |
To provide a method for chucking a work surely in the manufacture of a pulley integrated type rotor. In the manufacture of a pulley integrated type rotor, a work W2 is chucked by inserting a jig 101 into a recessed part 17a to be formed ...
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JP2006320927A |
To accurately manufacture a tapered bearing by minimizing the difference between outside diameters on the thick side and the thin side of the formed tapered bearing.A pair of annular blanks 1 having a fixed outside diameter the approxima...
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JP3850709B2 |
To provide a forming method which easily forms a bearing boss in the center of a metal disk as a monolithic construction. A supporting die 16 is formed of a cup-shaped portion 12 pressed out at the center of a metallic disc 11, a machine...
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JP3126970U |
To provide a connecting pin for a chain, which can easily and easily provide a groove for an oil reservoir and can reduce the cost of the entire chain. This is a chain connecting pin 1 for connecting the inner and outer link plates 2, 2,...
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JP2006305684A |
To provide a method for machining fine recessed portions, the method which stably forms fine recessed portions even on the surface of a workpiece hardened by a heat treatment without damaging a tool, and further to provide a sliding comp...
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JP2006297449A |
To provide an apparatus and a method for roll-forming a teeth-profile with which the deterioration of a teeth-profile roller can exactly be checked.In the apparatus for roll-forming the teeth-profile, performing the rolling-formation by ...
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JP2006297465A |
To propose a method for forming an unequal-wall-thickness tube which can form an unequal-wall-thickness tube with a partly thin-walled circumferential portion, from a cylindrical mother tube with a nearly equal wall thickness, a method f...
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JP2006297467A |
To provide an apparatus for working fine-recessed parts by which the fine recessed parts can be formed at high precision to the circumferential surface of a material to be worked and also, the reduction of a working cost is realized.The ...
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JP3839796B2 |
To provide a vehicular wheel rim having a hump portion of excellent dimensional accuracy. A first claw 30 and a second claw 32 holding a work (a vehicular wheel rim) W are stopped at predetermined position. An annular supporting member 1...
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JP3839794B2 |
To provide a wheel rim for a vehicle having a hump portion of excellent dimensional accuracy. A first claw 30 and a second claw 32 holding a work (the wheel rim for a vehicle) W are stopped at predetermined position. A right first die 16...
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JP3840275B2 |
To obtain a ballpoint pen for small letters which can stably hold a ball for a long period and smoothly write irrespective of adopting an extremely small ball in a method for manufacturing a pipe type ballpoint pen tip utilizing plastic ...
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JP3840264B2 |
PCT No. PCT/DE96/01641 Sec. 371 Date Jun. 26, 1999 Sec. 102(e) Date Jun. 26, 1999 PCT Filed Sep. 3, 1996 PCT Pub. No. WO98/06521 PCT Pub. Date Feb. 19, 1998A process is disclosed for manufacturing a gear part with outer teeth from a meta...
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JP3839795B2 |
To provide a wheel rim for a vehicle having a hump portion of excellent dimensional accuracy. A first claw 30 and a second claw 32 holding a work (a vehicular wheel rim) W are stopped at predetermined position. A right first die 16b is c...
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JP2006289471A |
To provide a device for working fine recessed part capable of relieving the impact that a tool receives from a work by minimizing the inclination of the fine recessed part formed by the tool, and also to provide a method for working a fi...
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JP2006289394A |
To provide a method which can economically manufacture a ring having excellent dimensional accuracy from an Mn-Cu alloy material.In the method for manufacturing the ring from the Mn-Cu alloy material, the Mn-Cu alloy material is processe...
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JP2006289564A |
To provide a minute recess machining device which can form a minute recess in an internal surface of a workpiece with good accuracy, contributes to reduction in machining cost, and can uniformly eliminate a heaping-up portion occurring o...
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JP2006289457A |
To provide a device for forming minute recessed parts which can form minute recessed parts on the circumferential face of a workpiece with high precision and cuts down processing costs.The device for forming minute recessed parts is equi...
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JP2006289483A |
To obtain a defective screw part detecting machine which removes the dent etc., in thread ridges of screw parts generated when passing through processes of heat treatment, plating, etc., and on the other hand, performs discrimination of ...
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JP2006289475A |
To provide a working device and working method of a fine recessed part, capable of forming fine recessed parts at partially changed depths on a circumferential surface of a work with satisfactory accuracy and achieving the reduction of a...
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JP2006289418A |
To provide a device for working fine recessed part capable of forming fine recessed parts with satisfactory accuracy on an inner peripheral surface of a circular hole and realizing the reduction of a working cost, and also to provide a m...
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JP2006281263A |
To provide a rolling technique for a gear material, by which rolling technique, a gear product with an accurate tooth shape can be obtained.The gear material before rolling has such a tooth shape that when the whole depth is represented ...
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JP2006281264A |
To provide a technique for manufacturing a gear, which technique can keep an appropriate temperature, and can make the gear compact by reducing its porosity.A sintered gear material 1 processed by sintering is heated by heating devices 2...
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JP2006523775A |
A technique for net shaping gear teeth of a high performance power transmission gear from a powder metal workpiece includes heating a powder metal workpiece in the form of a near net shaped gear blank having gear teeth surfaces above its...
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JP3834675B2 |
A cold rolling method and apparatus for forming an annular workpiece ( 10 ) with an outer surface ( 11 ) having a given contour and an inner surface ( 12 ) having a given contour, starting from an annular blank. A rotatable forming mandr...
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JP2006274392A |
To provide a bolt made of a titanium alloy which can be subjected to cold forging and is inexpensive, and to provide a method for producing the same.In the figure (a), a stock piece 20 is composed of a Ti-Fe-O based alloy comprising, by ...
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JP2006275089A |
To provide a clutch drum capable of transmitting sufficiently large torque and preventing the occurrence of jig breakage in form rolling, and a manufacturing method of the clutch drum.In a clutch drum 1 which has a spline 5 engaged with ...
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JP2006272452A |
To provide a forming method for a disk shaped stock where trimming for the outer circumference of a disk shaped stock is not needed, and strain and wrinkles are not generated upon drawing for forming an annular projecting part.Since, to ...
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JP3831896B2 |
There are described a method and an apparatus for producing a gear wheel from a powder metal blank (1) pressed and sintered with an overmeasure in the toothing area, which powder metal blank is compacted under a plastic deformation in th...
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JP2006263762A |
To provide a microscopic recess working device capable of forming microscopic recesses with excellent accuracy to a circumferential surface of a work, and reducing the working cost.The microscopic recess working device for forming micros...
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