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JP6951186B2 |
To shorten time needed for changeover of a rotation plastic forming device and thereby improve the operation rate of the device.A rotation plastic forming device has a spindle mechanism 10, a workpiece holding unit A, and a spindle attac...
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JP6936103B2 |
To provide a manufacturing method of a gear which can accurately manage a dimension and a form of a tooth form at each portion of the tooth form.In this manufacturing method of a gear 1 having a rolling processing process for rolling-pro...
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JP6928734B2 |
The present invention provides a method for manufacturing a piston of a disc brake for a vehicle, wherein a corner portion between an outer peripheral end portion on an open end portion side and an open end portion is formed into a desir...
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JP6927469B1 |
To prevent waste material from being generated by manufacturing another part by utilizing a central portion which has been discarded as scrap in a conventional ring gear manufacturing method. In the method for manufacturing a ring gear a...
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JP2021120164A |
To provide a rolling tool for internal gear which can suppress the generation of excess thickness on a tooth surface of a workpiece in the rolling processing and support various tooth widths, and a rolling processing method of a gear usi...
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JP6915462B2 |
To provide a form rolling apparatus and a form rolling method which can simplify positional adjustment of a processing roller with respect to a tubular member while maintaining processing accuracy, and can process the tubular member rega...
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JP2021109224A |
To provide a spinning device and a molding method, allowing for accurate molding of a thick-walled portion where a placoid portion has increased thickness.A spinning device 1 comprises: a support portion supporting a base material 9 havi...
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JP6911702B2 |
To provide a roll-forming device which can be miniaturized without replacement of a roller die because of having two roller dies.A roll-forming device 1 includes a first support member 41a, a first roller die 42a, a first rotation device...
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JP6909696B2 |
To provide a rolling machine and a method capable of suppressing deviation of a processing start position of a workpiece, regardless of the kind of the workpiece.A rolling machine 1 performs rolling of a workpiece W by rotationally drivi...
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JP6903473B2 |
To provide forging material to which lubrication oil can be applied in a proper condition.The invention is directed to aluminum-made forging material 1 for forming forging 1b by die-forging. The forging material has a nearly columnar app...
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JP2021100778A |
To provide a tool for chipless manufacturing or finishing threads with high accuracy, and a method for manufacture of the threads.A tool 1 comprises at least one molding part 5 which is rotatable around a tool shaft A, a plurality of pre...
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JP6894562B1 |
To provide a male screw member capable of supporting a plurality of types of fastened members having different thicknesses, and a method for manufacturing the male screw member. The male screw member is a male screw member screwed into a...
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JP6894592B2 |
To provide a rolling die for a self-drilling screw which can smoothly perform screwing-in and can effectively prevent crack occurrence in a woody member.A die 11 for rolling a self-drilling screw in which on a portion provided with a thr...
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JP6889348B2 |
To provide a rolling die of a drill screw capable of surely removing a forging time burr generated in a drill part provided on the shaft part tip of a screw material simultaneously with a rolling process of a screw thread.In a die for ro...
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JP2021084121A |
To provide a mandrel for ring roll which is used for a ring roll molding machine which can provide improved yield strength when used under high temperature and high pressure.A mandrel is located on an inner peripheral side of an annular ...
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JP6879607B1 |
To provide a rolling processing apparatus capable of using a die for a long period of time. A rolling processing apparatus 1 includes a pair of dies 11,21 and a base 10 for holding a pair of dies 11,21, and one of the pair of dies 11,21 ...
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JP2021080532A |
To provide a highly versatile processing method of a galvanized steel tube, without applying a special pretreatment to the steel tube, or without forming an element tube having a restricted composition or a galvanized layer.There is prov...
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JP6872004B2 |
[Problem] To provide a screw that can be screwed in until the screw closely adheres to the surface of a workpiece. [Solution] A screw wherein a complete male screw section 21 forming a helical complete male thread crest shape and an inco...
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JP6871595B2 |
To provide a double-screw structure in which a general specification first screw and a special second screw which is formed by deforming a multiple-thread screw at a thread of the first screw with a lead different from that of the first ...
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JP6859225B2 |
To provide a sintered gear having increased strength while suppressing generation of cracks and emboly damages of a stock.Provided is a method for producing a sintered gear comprising a rolling step where a stock 13 for a gear is subject...
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JP6854484B2 |
To provide a rolling method of a ring-shaped material capable of suppressing generation of crack when performing rolling processing of a ring-shaped material formed of a Ni-based super alloy.The rolling method is configured to repeat hea...
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JP6852611B2 |
To provide a manufacturing method of a gear having sufficient strength, capable of supplying a lubricant to a meshing surface of the gear without requiring large energy.A manufacturing method of a gear 100 includes the first rolling step...
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JP6845740B2 |
To provide a rolling machine in which it can be notified that an abnormality occurs in a rolling pressure, and a program therefor.A rolling machine 1 rolls a work-piece W by rotating plural dies 61, 62 while sandwiching the work-piece W ...
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JP6842664B2 |
In a method of cooling a main roll, strength of a shaft and a peripheral portion thereof of the main roll is sufficiently secured, maintenance of the main roll is facilitated, and the shaft and the peripheral portion thereof of the main ...
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JP6843777B2 |
A device and method for designing lightweight, strong, material efficient, extruded and pultruded profiles, profile segments and surfaces produced in profile production with rotating dies creating superior resistance to compression, bend...
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JP2021038761A |
To provide a manufacturing method of a ball screw device which can suppress a variation of an oblique diameter of a screw shaft at each point along an axial direction of the screw shaft, and the ball screw device.A manufacturing method o...
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JP6837312B2 |
To heighten an operation rate of a device by shortening a time required for setup change of a rotation plastic processing device.A rotation plastic processing system has a rotation plastic processing device 2 capable of exchanging a work...
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JP6834682B2 |
A rolled-thread bolt production method includes: forming a steel wire into a workpiece having a prescribed unthreaded-bolt shape; forming a threaded-portion on the workpiece through thread rolling; and performing shot blasting on an enti...
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JP6832537B2 |
To provide a rolling die having remarkably heightened durability as a tool by keeping abrasion resistance for a long term, while preventing generation of chipping, break or the like.In a rolling die 2, an atom nitrided layer 14 in which ...
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JP6815160B2 |
To heighten an operation rate of a device by shortening a time required for setup change of the rotation plastic processing device.A rotation plastic processing device has a roller holding movement mechanism 50, a processing roller suppo...
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JP6803336B2 |
A ring rolling process and corresponding apparatus are disclosed. A ring shaped workpiece is provided, the ring shaped workpiece having a principal axis, an inner radial surface, an outer radial surface, a first axial surface and a secon...
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JP6798893B2 |
To provide a rolling flat die capable of accurately rolling a spline in a workpiece.A first processing tooth 20 can shorten a width dimension of a crest-removing surface 21 of the first processing tooth 20 positioned on the starting end ...
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JP6788917B1 |
To provide a method for manufacturing a bolt capable of preventing the occurrence of a shape defect at a tip portion. A method for manufacturing a bolt is a first rolling step 32 in which a metal material having a head is rolled to form ...
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JP6786597B2 |
A method and a device for the production of an internally cooled inlet or outlet valve for internal combustion engines, together with the resultant valve includes provision of a workpiece, which has a cylindrical stem and a cylindrical h...
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JP6778391B2 |
To provide a ring rolling method capable of rolling a raw material for ring rolling into a desired shape while restraining temperature drop.There is provided a ring rolling method for hot-rolling a ring-shaped rolling material while spre...
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JP6772189B2 |
A spinning apparatus for decreasing by spinning a thickness of a portion of a tube material having a uniform thickness except at a first axial end portion is disclosed. The spinning apparatus includes a spindle-side chuck having a conica...
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JP6768837B2 |
The invention relates to a method and a device for producing a shaped part from a circular blank, wherein the circular blank is rotated and at least one compression roller is radially applied to an outer edge of the circular blank, said ...
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JP6759112B2 |
To shorten time needed for changeover of a rotation plastic forming device and thereby improve the operation rate of the device.A rotation plastic forming device has a spring clamp mechanism Q, a first piston R, and a second piston S. Th...
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JP6754496B2 |
The invention relates to a device and a method for forming, in which at least one spindle is driven in a rotating manner by means of a rotary drive, a workpiece is received on the spindle by means of a clamping means and clamped on the s...
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JP6748497B2 |
To provide a screw repair device capable of repairing a screw part quickly and securely, while suppressing occurrence of troubles including a double screw.A screw repair device 1 of the invention for repairing a thread part b1 of a screw...
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JP2020131252A |
To provide a manufacturing method of a high strength aluminum alloy bolt for permitting the high strength aluminum alloy bolt which prevents seizure upon working, at the same time, improves formability, improves stress corrosion cracking...
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JP6740993B2 |
To provide an inner surface resin lining thin steel pipe with an excellent screw part (of which a screw shape of a steel pipe outer surface has a normal JIS shape, and unevenness on a steel pipe inner surface is small), and a manufacturi...
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JP6732273B2 |
Provided is a method for performing an external pipe thread process on a hollow blank by at least twice rolling: firstly, the first rolling wheel group rolls the outer surface of the hollow blank into a threaded cylindrical surface or a ...
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JP6725566B2 |
To provide a hollow material manufacturing method by which a male screw can be formed while simplifying a complex process.A hollow material manufacturing method comprises: a preparation process in which a hollow work-piece having at leas...
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JP6726818B1 |
To disclose an aluminum foil rolling apparatus for an electrolytic capacitor. A rolling chamber that opens forward is installed in the main body of the device, and a rolling mechanism that can roll aluminum foil into a cylinder is instal...
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JP6722359B2 |
This circular rolling mill has a fixed main frame, a pair of cylindrical rollers, internal and external, to shape internal and external radial faces of an annular part and supported by a first secondary frame mounted on the main frame, a...
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JP6723103B2 |
To provide a manufacturing method of a shaft which can improve abrasion resistance and fatigue strength of a journal part easily without using laser beam irradiation.A journal part 18 is formed by preparing a material having a journal co...
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JP6722056B2 |
To provide a screw repair device capable of suppressing occurrence of troubles including a double screw, in which a screw is jammed with a die during repair.A screw repair device 1 of the invention for repairing a thread part b1 of a scr...
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JP2020519444A |
The rolling tool (5) includes a foundation body (6) for fastening the rolling tool (5) to the rolling mill (1) and a profile portion (7) for forming the workpiece (2) to be rolled. ) And. The foundation body (6) and profile part (7) form...
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JP2020099942A |
To provide a machine tool which improves screw form rolling efficiency by a screw form rolling tool.A prescribed turret support section (shown as a cutter holder body 11) includes a rod-like member 60 which abuts on an operation section ...
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