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Matches 701 - 750 out of 2,814

Document Document Title
JP2004270728
To provide a rotating part eliminating the need for deburring and preventing peeling off of burrs (scattering of burrs), and to provide a manufacturing method of the rotating part.The rotating part 1 comprises: a first member (stepped ge...  
JP2004270514
To provide a rocker arm and a method of manufacturing the same that eliminates a punching process and improves material yield.(1) A rocker arm 10 is formed of a steel pipe. Counter parts 21a and 21b of a first radial direction of the ste...  
JP2004261835
To provide a bending method by which enamel hairs are not generated on an end face when applying flange-bending to the end part of a sheared pre-painted steel sheet.When performing the slide-bending of the end part by pressing the end pa...  
JP2004261856
To manufacture a bumper stay 21 in the end parts of a shaft part 22 of which mounting flanges 23, 24 having long holes 25, 26 for mounting are formed by a simple method.Circular holes 28, 29 penetrating through the tube wall are formed i...  
JP2004255384
To easily protrude a high-precision rib to bite into an outer circumferential surface of a damper, at an axially intermediate part in an inner circumferential surface of an inner diameter side wall of a damper pulley made of metal sheet....  
JP2004255447
To provide an oil-pressure generating source device which is used for fine adjustment to deal with oil spill from piping, trial punching, bending and forming work to a metallic thin plate and is useable to small scale production, and to ...  
JP2004250749
To provide a high strength thin steel sheet having burring properties, and to provide a production method therefor.The steel sheet consists of a steel comprising 0.01 to 0.1% C, 0.01 to 2% Si, 0.05 to 3% Mn, ≤0.1% P, ≤0.03% S, 0.005 ...  
JP2004243332
To provide a compact and inexpensive hemming device.A hemming device 10 has a link supporting mechanism comprising: a hemming die 2 fixed on a base 1; a link supporting block 3; a final bending punch 7, which is turnably supported around...  
JP3589237
To surely secure pressure-withstanding strength in the connecting part between a heat transfer tube and a thin tube when the thin tube is directly connected to the heat transfer tube by brazing. In the connecting structure between the he...  
JP2004237300
To make a sheet material after working to be easily demolded, when using a shift-bending die to form a flange on the sheet material.In the lower-die side of a shift-bending die 18, a cam holder 6 and a lower-die punch 7 are mounted to su...  
JP2004223579
To provide a hole chamfering device with which the hole of a work can be accurately chamfered in a short period of time.This hole chamfering device 1 has a punch 2 and a die 3. The punch 2 is rockably held in a punch holding die 4 and ha...  
JP2004224417
To prevent water from penetrating into the cut end part of the inside of a curl part further effectively in a metal can in which at least the vicinity of the opening of the can is formed of a metal plate, both surface of which is covered...  
JP2004223583
To provide a burring processing method for sheet with which even in the case of being a material, such as aluminum, having small elongation, a crack at stand-up part is not developed and the uniform thickness is ensured.The burring proce...  
JP2004216388
To provide a pipe in which a usable space can be secured by reducing a dead space of a pipe to be arranged in a heat exchanger or the like, a working method capable of molding the pipe in less working processes, and a working device.The ...  
JP3580769
To provide a press working method capable of easily and securely removing burrs with a press and a presswork piece with no burrs. In a press working method, the circumferential part 2 of punched holes 11, 14 in a work piece 1 are pressed...  
JP2004209576
To provide a production device and its control method which carry out efficient operation even if a plurality of kinds of works are mixedly fed.The production device has a control part 600 for adjusting timing of conveying out of the wor...  
JP2004202510
To uniformly apply hemming to a bent flange part without damaging the outside surface of an outer panel.A hemming apparatus 1 has a lower die 10 and an upper die 20 which is arranged vertically movably above the lower die and a work 60 w...  
JP2004197932
To provide a method for manufacturing a spring assembly capable of expecting a reliable caulking state.The spring assembly comprises an annular plate 1B; and a compression coil spring 2. In a method for manufacturing the spring assembly ...  
JP2004190798
To provide a metallic conduit allowing liquid flowing therein to securely flow into necessary portions through holes formed therein, and a method of boring the metallic conduit.This metallic conduit 10 comprises holes 20 in the wall 11 t...  
JP2004181498
To provide a hemming die apparatus for making a moving locus of an integrated punch at hemming work the shortest locus even in constitution in which a prehemming punch and a main hemming punch are integrated.The edge part 9a of a skin pa...  
JP3565939
PURPOSE: To obtain a manufacturing method for a pulley in which the web part can be positioned in the middle of the boss part. CONSTITUTION: The pulley E is produced by the first process in which a cylindrical boss part 51 and a web part...  
JP2004167593
To provide a method of press working excellent in shape fixability which can efficiently manufacture a component of which the wall section has a small warp, in obtaining, by press working, the metal plate component having the wall sectio...  
JP3563427
PURPOSE: To enable working to be completed in one stage by providing with a bending die for bending a work, which is clamped with a counter holder and a punch, and with a folding arm member which holds the work until it is bent at right ...  
JP3563431
PURPOSE: To prevent the buckling phenomenon of a panel by arranging a thrust member which freely penetrates a polygonal hole part on the panel at the one side of the upper and the lower metals, provides a bending die so as to be freely r...  
JP2004162794
To provide a shaping method for a retainer of a ball bearing capable of obtaining a sufficient supporting force of balls and improving the wear-durability.In the shaping method for the retainer of the ball bearing rotatably retaining a p...  
JP2004154800
To provide a press forming device with which the reduction of the cost of equipment and running cost and reduction of installation space are expected while maintaining working accuracy.A work W is press-formed into a second work W2 which...  
JP2004154839
To provide a metallic member with a bent flange which can secure a bent flange at least 1.5 times as high as the present member and still does not cause a fracture, neither changing the size of an inner radius R beyond a processing limit...  
JP3558654
PURPOSE: To shorten the time required for exchanging a metallic die and to improve the working efficiency by using one forming metallic die for three processes of curling forming. CONSTITUTION: A work W is horizontally held by a turret p...  
JP2004141912
To provide a structure, which has a simple device-configuration and where a preliminary bending work and a permanent bending work subsequent thereto are conducted in one motion.A link 19, which moves up and down a base 4 having a slide b...  
JP2004141963
To enhance the strength of a burring punch structure, and to reliably discharge scraps by solving problems that the spring force is weak in an ejector pin built in a burring punch in the burring punch structure used for a prepared hole f...  
JP2004141896
To provide a burring method and a punch tip, by which an annular burr is not formed on the inner periphery of the tip end of the cylindrically projecting part formed by a burring process.The burring method comprises a process for inserti...  
JP3551260
PURPOSE: To provide a small-size and light-weight die which bends, laps and presses tightly an iron plate and can be exchanged easily. CONSTITUTION: A stripper bolt 4 having a washer 6 is passed into a groove 3 of a receiving base 1 and ...  
JP2004130320
To easily perform design and standardization of a hemming apparatus while preventing a lowering in working property and an increase in facility cost of the hemming apparatus.A worm wheel 15 is rotated around a hinge shaft 13 by a servo-m...  
JP3546718
To form a press formed article having a U shape part of a nearly U shape in cross section of a desired shape and dimension. In this forming method, a work is formed into a U shape part of a nearly U shape in cross section from a state of...  
JP2004122201
To provide a press die for allowing smooth motion of a flying cam with a simple configuration at a low cost.A guide cam 4 having a work edge bending blade 5 on a lower die 2 is provided adjacent to a work receiving table 14, a bending bl...  
JP3545618
To reduce manufacturing cost and to facilitate the assembly of a cam unit with the cam slider in the cum unit such as a horizontal cam unit, hanging cam unit and inclined cam unit in a press die for bending the edge parts of a body frame...  
JP3544467
To provide an edge die capable of bending a panel in which two sides of the corner are under parts by a compact die. When a wedge member 21 is retracted by a second cylinder unit 22, a corner part 13 is lowered while guided by inclined g...  
JP2004106002
To provide a method for forming an annular curved surface on a plunger for a valve lash adjuster by which an annular curved surface having excellent dimensional accuracy can be formed.An apparatus 1 for forming an annular curved surface ...  
JP2004108571
To adjust a length of a pipe simultaneously with forming an enlarged part by plastic deformation, in a method of manufacturing a pipe having the enlarged part on its end part as the joint part.An arbitrary position of the pipe 20 is clam...  
JP2004105991
To provide a technique in which superior bending can be performed to the flange of a wheel house by preventing an inflow phenomenon of the flange and enhancing quality of an outer panel at the time of bending of the flange.The bending de...  
JP2004098154
To provide a method for forming a hem of an aluminum alloy panel and an aluminum alloy panel having the hem formed by the same method, by which a difference in the dimension of an outer profile at the hem shape peripheral part during for...  
JP3538772
To improve functionality and economy by using an electrical mechanical press which is replaced with a conventional hydraulic press, as to the hemming work using an automobile associated member, the building associated member and the stee...  
JP3536062
PURPOSE: To provide a composite tube working device which does not cause wrinkle to bent part, can reduce ellipticity, performing bending as well as end part working with one device and is easily portable. CONSTITUTION: A composite tube ...  
JP3538125
To provide composite working equipment for a steel pipe and working method therefor, small and easy to move, and capable of not only working a flare of the steel pipe but also forming a branch pipe and outer threading. The composite work...  
JP2004090209
To provide a drill bit device for burring, including a fixed blade part and the required number of rocking blade parts, in which the required number of radial grooves are formed extending in the radial direction from the substantial cent...  
JP2004082141
To provide a method and an apparatus for manufacturing a hollow stepped shaft by a plastic forming process without causing crack by using a steel tube of a hard thick material.A base stock 20 which is filled with a filling material havin...  
JP2004082184
To provide composite working equipment for a steel pipe which is compact and easily movable, and capable of performing not only the flaring of the steel pipe but also the grinding of a flared surface, the grooving and the lining peeling,...  
JP3531336
To form a thin steel sheet with a device of simple structure by respectively bending both opposite edge parts of a thin steel sheet into an almost right angle shape and a hook like, and then, releasing the engagement of both edge parts a...  
JP3532746
To make it possible to perform a pre-hemming processing and the following main hemming processing in succession by one motion. Whole of a driving cam 6 is driven oscillatedly by abutting a cam follower roller 16 of the upper die side dri...  
JP2004076837
To provide a synchro sleeve having pairs of chamfers formed at both ends of a meshing internal spline and at both ends of a synchronization internal spline, respectively, and a roundness formed on a ridge line of each of the pairs of cha...  

Matches 701 - 750 out of 2,814