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JP2014073517A |
To provide a metal piece having a projection, in a manufacturing method simpler than a conventional one.A method of manufacturing a metal piece (20) having projections (26) for ensuring soldering thickness, includes: a rolling step for f...
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JP5479155B2 |
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JP2014069210A |
To highly accurately process a housing on the inner peripheral side of a separator tube, without executing cutting work.The separator tube 4 is manufactured by a processing method including three processes which are: a grooving process o...
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JP2014061549A |
To provide a method of manufacturing a roller bearing cage which may increase fatigue strength of the cage.A method of manufacturing a roller bearing cage provided with at least one cage ring 1 and a plurality of cage webs 2 which connec...
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JP5465955B2 |
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JP5459461B2 |
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JP5453414B2 |
A method is for producing a circular cylindrical body (10) comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body (10) is initially produced with a straight internal recess...
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JP5446787B2 |
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JP5449870B2 |
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JP5446785B2 |
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JP2014042925A |
To provide a method of manufacturing a gear for a gear shifter in which the gear for the gear shifter can be manufactured using a manufacturing apparatus which is loaded small during molding, and is compact and simple in structure, and i...
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JP5435190B2 |
There is provided a processing method of a tube body comprising the steps of: a tube-expanding step wherein a base tube is partially retained with a chuck unit having a rotational function, and a mandrel is pressed in to an end portion o...
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JP5430644B2 |
In order to simplify mounting of the inner ring (5) of one of the bearings (102) of a wheel hub on the associated spindle (1) and in order to perform keying together of this ring and the spindle by means of multiple-lobe—for example th...
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JP5436560B2 |
A fastener (2) such as a rivet, and a method of manufacture of such, wherein the fastener (2) is formed with helical (16) and annular grooves on the shell (4), such that when the fastener (2) is installed into a workpiece (24), a bulb (3...
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JP5430825B2 |
At the time of introducing stress under pressure, the tool (14) of the impact machine (1) only executes a single movement relative to the crank shaft. This movement lies in the plane at right angles to the surface of the crank shaft segm...
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JP5428183B2 |
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JP5420167B2 |
A thread rolling lubricant of a nonchlorine species, in which a lubricant base oil is blended with 25 through 35 weight % of (A) a sulfur species extreme pressure agent, 6 through 16 weight % of (B) an organic zinc compound, 2 through 12...
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JP5421998B2 |
A blind fastener comprising a body (22) and a stem (26), wherein the fastener is installed in a workpiece by applying a pulling force to the bodycausing a bulb to form at a radially expandable section of the body, the stem of the fastene...
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JP5417435B2 |
The invention concerned is a deep rolling head (1) of a deep rolling unit for deep rolling of radii or recesses (4) at the bearing trunnions (5) of crankshafts with the help of work rollers (3) which are held on both sides of the contact...
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JP5415904B2 |
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JP2014024081A |
To provide a ring rolling mill having a structure capable of safely and quickly carrying out a high temperature processed ring-shaped raw material just after rolling to a machine outside, by reducing deformation such as circularity.A rin...
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JP5408007B2 |
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JP5405144B2 |
In a welding stud (1) comprising a head formed as a welding end (2) which has a cylindrical basic shape and is provided with a helical external thread (3), the end region of the shank remote from the head has at least two oblique faces (...
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JP5401667B2 |
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JP5402404B2 |
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JP5401702B2 |
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JP5401701B2 |
A method of manufacturing a cylindrical member having anti-slip projections formed on axial end faces, the method comprising the steps of: employing a roller die, which is provided with a circumferential die groove of annular form extend...
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JP5393963B2 |
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JP5396089B2 |
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JP5388391B1 |
To provide a ring rolling mill capable of improving productivity. A mandrel 1 is composed of a columnar mandrel pin 10 through which a work is inserted and a mandrel main body 15 capable of moving the mandrel pin 10 in the axial directio...
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JP2014000583A |
To reduce malfunction and noise due to vibration of a thread rolling device by suppressing vibration of a device body, and to improve productivity by a compact structure.A thread rolling device includes a thread rolling section 40 rollin...
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JP5383881B1 |
To provide a ring rolling mill having a structure capable of performing rough rolling and finish rolling in a short time without reheating with one unit and efficiently moving and carrying out a work. A first station 170 which moves up a...
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JP5381797B2 |
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JP5376487B2 |
To consistently form a locking projecting bar of the high quality on various pipe bodies irrespective of the diameter size of the pipe bodies and irrespective of the wall thickness of the pipe bodies when forming the locking projecting b...
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JP5370590B2 |
The present invention addresses the problem of providing a method for manufacturing a multi-stage gear for which there is no gap between a small-diameter gear and a large-diameter gear, and addresses the problem of providing this multi-s...
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JP5363792B2 |
To provide a method for predicting the hot dimensions of a rough-shape material when hot-rolling a ring and making the application in hot to the design of the rough-shaped material possible. This method has: a stage where the specified c...
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JP5363276B2 |
To provide an apparatus for manufacturing a sprocket segment by which the sprocket segment having a desired shape can be manufactured inexpensively without installing special equipment for deforming a tooth part, equipment high in pressu...
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JP5364608B2 |
To provide a method for manufacturing a sprocket segment capable of manufacturing the sprocket segment with a desired shape at a low cost without installing large-sized equipment, equipment with high pressurizing ability or the like. The...
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JP2013244488A |
To provide a rolling die and a rolling method that can prevent the occurrence of slipping between a workpiece and the rolling die.A rolling die 1 includes a rolling section 20 circumferentially moving relative to a shaft-like workpiece t...
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JP2013244489A |
To provide a rolling die and a rolling method suppressing the occurrence of Mannesmann drilling in rolling work to improve product strength.A rolling die 1 includes an introduction tooth 21 gradually increased in tooth depth so as to hav...
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JP2013244506A |
To highly precisely work the housing of an O ring at the inner peripheral side of a tube without performing cutting work.The housing of an O ring is formed by forming with a roller die 6 at the inner periphery of a diameter-reduced part ...
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JP5360624B2 |
A method for backing the inside teeth (2) of a sliding sleeve (3) produced by way of powder metallurgy for a manual transmission is described where the backings (1) of the teeth (4) forming the front-side pitches (9) are formed with the ...
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JP5361375B2 |
A process for producing hollow bolts including a longitudinal bore with the hollow bolts being provided with circumferential notches. The hollow bolts are provided with longitudinal grooves extending between elevations determining the bo...
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JP2013238299A |
To provide a gear capable of striking a balance between a high strength and a high meshing rate not depending on increasing a size and increasing a torsion angle.A gear comprises tooth parts (H) each having a tooth tip roundness (t) arra...
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JP5352709B1 |
To exhibit a sufficient anchor effect by surely expanding a resin plug while screwing the resin plug so as to align the axis with the axis. A screw of a shaft portion 3 of an anchor screw 1 which is screwed into a resin plug inserted int...
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JP5353142B2 |
To provide an automatically phase-adjusting rolling machine with which the amount of phase correction is easily calibrated without necessitating the design change of the attaching position of a displacement sensor in accordance with the ...
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JP5351679B2 |
The invention provides a vertical spinning plastic working machine, preventing bad influence caused by heat of a heating mechanism, etc. and replacing a forming die with simpler and low-cost structure. The working machine is provided wit...
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JP2013233582A |
To provide an apparatus for machining fine recessed parts and a method for machining fine recessed parts by which both the reduction of facility costs and shortening of a machining time can be achieved as well as a function provided to f...
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JP2013233566A |
To manufacture an exhaust system part for an automobile at low cost by performing spinning with high productivity while preventing increase of a processing time caused by a processing amount limitation per one path to improve production ...
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JP5349809B2 |
To surely make matching to a pitch between rolling dies for a short time. A thread rolling machine is rolled by abutting the plurality of rolling dies 20a, 20b, 20c to a rolling blank 1. The thread rolling machine includes: a holding par...
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