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JP3310607B2 |
To provide the method for forming an integrated drum having internal and external teeth which ensures the excellent quality of a product, prevents the inclination of the teeth and the axial deviation of the internal and external teeth, a...
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JP2002210518A |
To provide a planar catalyst forming device that can stably manufacture a planar catalyst formed body having a uniform pitch of ruggedness even when dispersion of thickness exists in the catalyst body before forming.In a device for passi...
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JP2002523686A |
The method includes making a fluid communication channel (44), which has a selectively variable cross-sectional area profile, in the inner face of a gas spring cylinder (32) so as to permit fluid communication at different selective rate...
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JP2002523691A |
A fastener is constructed having four thread zones constructed over the length of the fastener, from the head to the tip, namely a ridged cylindrical holding zone, a ridged cylindrical transition thread forming zone, a rectilobular taper...
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JP2002210503A |
To obtain a rolling method with a ring rolling mill and a controller for obtain a good ring of a product with the ring rolling mill.This method is a rolling method with the ring rolling mill provided with a main roll and a mandrel for pe...
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JP2002210505A |
To reduce the generation of defects in shape such as dents on a ring- like material to be rolled.A pair of upper and lower conical edger rolls 4A, 4A for performing height reduction in the axial direction of a material 1 to be rolled are...
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JP2002210532A |
To provide a worm gear of high machining accuracy having the predetermined effective length in the axial direction shorter than the integer times of the predetermined pitch in the axial direction.A thread rolling die 4 has a first area i...
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JP2002210504A |
To reduce the generation of defects in shape such as dents on a ring- like material to be rolled and to perform forming by ring rolling while keeping the ring-like material to be rolled in the circular shape.As a mandrel for performing t...
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JP3309196B2 |
PURPOSE: To provide the spiral material for multiple use and the method of its producing by supplying a rolling die with the hollow multi angle line and adding twists while extending with a diameter reduction and also by improving the el...
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JP3309795B2 |
To rapidly and inexpensively work a complicated shape by setting different periods between the period working a groove part in the form rolling process obtaining a correct shape making the axial line the center and the period working a s...
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JP3306577B2 |
To provide a rugged nonskid having a height and shape effective for preventing slip in one end surface in the width direction of steel shapes for a groove lid. The steel shapes 1 for the groove lid is rolled between calibers 2a of a pair...
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JP3307096B2 |
PURPOSE: To easily manufacture a wire for an insert ring with a mushroom- shaped cross section shape, which is constituted of almost semicircle and almost rectangle. CONSTITUTION: This device is equipped with a feed roller 1 on which a g...
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JP3304757B2 |
To provide a manufacturing method of a tube having multiple grooves on the inside surface by which the break of a metallic tube is prevented, adjustment is simple and the shape of the groove is freely changed and a device therefor. By ar...
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JP3304100B2 |
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JP2002192284A |
To provide a forging method capable of forming a plurality of forging parts at one time with no variation of dimension without conducting a laborious and time consuming thickness adjusting work.A round bar initial material W1 in heated s...
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JP3298765B2 |
To improve the precision of a form-rolled gear by performing a hot generating form-rolling process by using roller-dies and a warm finish form- rolling process by using finish roller-dies in this order. A blank 7 is held with a first bla...
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JP3300732B2 |
PURPOSE: To prevent the eddy current loss reduction effect from being suppressed when grooves are made in the outer circumferential surface of a rotor by making grooves having accurate profile uniformly. CONSTITUTION: A groove is made on...
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JP3299097B2 |
To prevent a C ring disposed between an inner side member and an outer side member to which stress is applied relatively in an axial direction from being positionally dislocated or generating play by hardening the side to which the stres...
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JP3298764B2 |
To provide a hot form-rolling method capable of obtaining a highly precise gear which can not be obtained by the conventional method. The blank holding rigidity in the pushing direction by a blank holding part 1 is enhanced to ≥0.1mm/t...
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JP3299974B2 |
The invention relates to a process for ring rolling the teeth of bevel gears, preferably hypoid-toothed bevel gears, in a closed die, in which use is made of a pretreated blank of which the outline outside the shaping region of the profi...
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JP2002178079A |
To provide a roll forming method and device for low cost working by adopting a sequential working method through roll forming from a belt-like material having a roughly identical cross section to a deformed belt-like material having a di...
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JP2002518186A |
A metal forming method is used for manufacturing vehicle wheels. The invention comprises manufacturing of a wheel block comprising a central part and initially formed rim; drawing of the rim by hot rolling to obtain a wheel profile that ...
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JP2002178027A |
To produce a chimney-shaped hole having accurate size on a tubular member.By mounting the intermediate layer of a material which can be etched on a core roll and mounting at least one layer of metallic layer on the intermediate layer, a ...
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JP3294190B2 |
To provide a method for continuously producing a deformed cross sectional steel sheet having excellent balance in the right and left parts and good glossness on the finish surface and to provide an apparatus therefor. This producing meth...
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JP2002172449A |
To solve such a problem that in a method for shotblasting the peripheral face of a damper pulley in order to prevent slippage between a rubber and the inner or outer ring of the pulley from occurring, it is difficult to maintain the leve...
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JP3290155B2 |
To improve service life of a rolling roller by finishing a raw material into a final shape with a free rolling roller after the required number of teeth is rolled by a synchronous rotation rolling roller which is synchronized with rotati...
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JP3290144B2 |
To monitor a processing condition while memorizing a data thereof and monitor a working condition by comparing, if necessary, a data being memorized with a pre-memorized required data. In a rolling machine which press forms a preliminary...
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JP3291212B2 |
To reduce a tooth face pressure and to obtain a gear excellent in power transmission capability by engaging a worm gear, in which a tooth form inclined for a cylindrical axis on a cylindrical/outer peripheral face is a conical face, and ...
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JP3290933B2 |
To provide a rolling method by which a special shaped bar having extremely high dimensional accuracy is obtained by finish-forming excessive fin flaws on the outside diameter of ribs. Relating to the finishing mill group of a wire rod/st...
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JP3290538B2 |
PURPOSE: To attain locking not on an internal thread side, as done in a double nut structure, but on an external thread side. CONSTITUTION: A protrusive part 5, protruded in a normal direction of a flank in a screw thread 4, is provided ...
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JP3290094B2 |
To provide a drawing roller for thickening work without causing a roller crack by resolving the problem such as metal flow phenoment that the conventional drawing roller for thickening the outer periphery of a disk base stock is bisected...
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JP3290987B2 |
PCT No. PCT/FR92/00452 Sec. 371 Date Jan. 21, 1993 Sec. 102(e) Date Jan. 21, 1993 PCT Filed May 21, 1992 PCT Pub. No. WO92/20474 PCT Pub. Date Nov. 26, 1992.The apparatus and process according to the invention relate to the cold forming ...
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JP3289210B2 |
To manufacture a deformed cross sectional product composed of a flat plate-like part and plural rising wall integrally formed on one side surface of the plate-like part without causing unevenness in heights and thickness of the rising wa...
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JP2002160035A |
To provide a simultaneous rolling device for deformed gears to simultaneously roll the deformed gears with different shapes on the same axis.On a 360° range of a cam-type circumference, the device includes a nontooth gear processing par...
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JP2002153936A |
To provide a groove roll capable of preventing the occurrence chipping in a groove formed surface and improving durability, a manufacturing method of a grooved rolled bar using the groove roll, to provide a manufacturing method of a weld...
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JP3285508B2 |
To enable accurate and easy manufacturing of flat dies for producing a special non-circular screw by grinding the side of a ridge, whose top is flattened by the surface grinding of the ridge between thread grooves. The ridge 19 and valle...
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JP3285927B2 |
PURPOSE: To provide a manufacturing method by which a split type race whose end part of fiber flow is not exposed to the race face can be reasonably formed. CONSTITUTION: The outer circumferential face of a ring 1 of a base stock is roll...
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JP3287045B2 |
PURPOSE: To reduce the thermal load of a rolling roll by effectively heating the ring material which is rolled between upper and lower rolling rolls. CONSTITUTION: A guide roll 9 which is brought into contact with a ring material 3 to be...
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JP2002146454A |
To increase the corrosion resistance of heat transfer tubes with antifreezing solution circulated at the insides and to prolong the service life of a refrigerator.The refrigerator is provided with pressure resistant vessels 6, heat trans...
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JP2002147425A |
To provide a bolt capable of surely fastening even a thin member, and performing a tight fastening with an opponent member, similar to such as a wet preventing bolt and a masking bolt for female screw protection.An incomplete thread 5A o...
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JP2002143970A |
To improve precision of a gear by suppressing deformation from a circular cross section to an elliptical caused by expansion of peripheral length.The outer peripheral surface of a bore mandrel 2 has a rugged part 23 in which a recessed p...
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JP2002143910A |
To surely form a prescribed height fin while suppressing a work from preceding and width stretching even when the work is a plate-like bar stock of copper having rich ductility in a forming roll to form a planar bar stock with fin.In the...
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JP3283328B2 |
PURPOSE: To provide a painting removing bolt producing die which can produce a painting removing bolt having a precise screw thread without hardly generating a lack of a die thread. CONSTITUTION: A die thread 2 and a die root 3 for formi...
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JP3283173B2 |
To prevent a dressing material filled in a groove part from stripping away and from being blocked with a pebble or a dust and to keep the appearance function of a grating for a long time by using a groove lid structural member formed in ...
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JP2002137035A |
To provide a method of form rolling which can apply form rolling on an outer circumference of a hollow tube and also change lead angle and/or depth of thread in process.When applying form rolling on the outer circumference of the hollow ...
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JP2002137673A |
To provide a stay for head rest having uniform strength, excellent quality, and attractive appearance and producing no cutting chips.This stay 10 for head rest comprises long parts 12a and 12b and short parts 12a and 12b formed by bendin...
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JP3281004B2 |
PURPOSE: To provide a method for obtaining the good formability, restraining heating temp, in forging as lower as possible while avoiding lowering of the strength caused by thermal effect in the case of manufacturing a member of a wheel,...
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JP3282210B2 |
PURPOSE: To reduce the number of the forming roll pairs by forming the initial ring like grooving part where the thickness in the radius direction of the outer circumferential surface of a stock is partially reduced, and increasing the d...
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JP3282211B2 |
PURPOSE: To reduce the number of the forming roll pairs by forming the initial ring like groove part where the thickness in a radius direction is partially reduced on the outer circumferential surface of a stock, and increasing the dimen...
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JP3281474B2 |
PURPOSE: To obtain an inexpensive rolled screw made of a titanium alloy having excellent mechanical properties by molding a threaded part by cold rolling and suppressing the embrittlement thereof while subjecting the threaded part to pre...
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