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JP2004160536 |
To provide a spinning forming method which can bring a sufficient increase of wall thickness without pressing a pipe end by a pressing tool.In the spinning forming method, a forming roller 11 is moved in both a radial and axial direction...
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JP3546937 |
To realize a draw processing with a simple constitution for forming a tapered shape in a manner that a temporary diameter varies along an axis in a longitudinal direction of a work, and applying an eccentricity and/or an off-angle draw p...
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JP3546643 |
To provide a stable can diameter by controlling the fluctuation of the twisting force to be applied to an external roll spindle. A spin flow form roll mechanism is provided with an internal roll spindle 2 to rotatably support an internal...
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JP2004122189 |
To provide a pipe contracting device which is used without exchanging a drawing die even when the drawing die is worn, and adaptable to any case when the contraction dimension is diversified without exchanging the die.In the pipe contrac...
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JP2004114147 |
To enable the eccentric reduction process of a tube diameter without causing any buckling even if an offsetting amount is great and enhance working efficiency by making the process possible at a time of pressing.The device for reducing t...
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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 ...
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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...
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JP2004106001 |
To provide a method and an apparatus for reducing the end part of a metallic part for easily providing even the end part of a hard metallic pipe with a tapered part with a sufficient length by using a plurality of cone-shaped reduction r...
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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...
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JP2004073864 |
To provide a spacer especially suitable for using in operation of a tubular bone, and a manufacturing method therefor.This tubular spacer includes a first edge on a first end part and a second edge on a second end part on the opposite si...
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JP2004025214 |
To provide a method for working a square pipe with both tapers by which working man-hour is reduced as compared with compression molding and bulging work, the quality is uniformly stabilized, the strength is raised, and appearance is imp...
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JP2004025221 |
To obtain a high-quality tube fitting by simplifying a method and a device for manufacturing the fitting in addition to achievement of the shortening of the manufacturing time and cost reduction of a metallic tube fitting having a tube p...
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JP2004011296 |
To provide a process for making a steel-pipe column with a tubular reinforcing metal secured to the inside of the column, using a relatively inexpensive facility while ensuring high productivity and low manufacturing cost and, even if it...
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JP2004009093 |
To improve the life of a tool mount by preventing dust such as scraps generated from a material to be worked from entering into between a tool supporting member for supporting a drawing tool and a sliding plate.In a drawing device 1 prov...
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JP2004009142 |
To provide a hand tool of very small operational force, small weight and high safety for an excessive load and possible breakage of a drive system.A casing (2) having a hole (16) and a first hand lever (3) fixed to the casing are formed ...
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JP2004001023 |
To provide a method for shaping a metal vessel which can simply be formed while securing a smooth face from a main body part having non-circular cross section to an end part having almost circular cross section and can easily be mass-pro...
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JP3506015 |
To provide a serration working device for a long tube which is capable of working serration while preventing a buckling. A serration working device 1 for a long tube is provided with a die which is vertically movable relative to a long t...
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JP3505064 |
To shorten manufacturing time and also to increase joining strength. A part 3 adjacent to one end 2 of a metallic pipe 1 is fitted in the inserting hole 5 of a metallic plate 4, with that end 2 of the pipe 1 formed with a flange 6 and, w...
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JP3500109 |
To provide a method of easily manufacturing an exhaust gas treating device having a non-coaxial neck part with reduced diameter non-coaxially to a main body part of an outer pipe on one end part of the outer pipe, and inserting an inner ...
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JP2003334626 |
To provide an efficient method and an apparatus for rotary molding of a metal tube, where the generation of cracks, etc., in the metal tube is prevented and high speed spinning can be conducted.The method is made by rotary molding of a m...
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JP2003326325 |
To shorten the forming time of a blocked part at a tube end and to prevent the occurrence of cracks and outer peripheral burrs in the formed blocked part.In a tool 20 for blocking and forming the tube end with which the blocked part 3A i...
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JP2003326426 |
To provide a machining device for a pipe end with almost no failures capable of suppressing a facility cost and providing easy maintenance.A work holding part 7 holding a work W is provided on a top face 2a of a bed 2. A forming part 5 i...
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JP2003320424 |
To provide a structure of pseudo hollow metal balls which is capable of effectively absorbing impact energy from all directions, is high in the percentage of voids, is excellent in deformability and further has a high strength, and a fil...
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JP2003320829 |
To provide a technique for preventing destruction of a welding part of a suspension arm.This suspension arm 10 is provided with a main body 12 formed by a pipe material and connecting members 14 and 16 welded to an end part of the main b...
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JP3490947 |
To provide a manufacturing method of a treatment apparatus for gas capable of easily integrating a body for treating gas and its holding body into a cylindrical body, obtaining a filling density of the holding body in a high precision in...
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JP2003311318 |
To provide a tube drawing method of a bottomed cylinder by which the material yield of a clad having layers consisting of especially rare metal and a superconducting material which is generally expensive is improved.The bottom of the cyl...
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JP3488331 |
To simply provide a flanged piping coupling in which a flange is close attached to a pipe without backlash at low cost. In a flanged piping coupling for connecting a pipe 5 to a cover body 7 by inserting the pipe 5 into an opening 8 form...
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JP2003305523 |
To provide a bottle can capable of rolling and closing very well.The bottle can is manufactured by doing a process for forming a metal thin sheet into a tubular body 20 having a bottom, a bending process for forming a bending part 20a to...
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JP2003290137 |
To accurately partly radially enlarge articular components constituting a curved tube for an endoscope, wherein the enlargement compresses guide protrusions.The articular components for constituting the curved tube for the endoscope by c...
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JP2003290849 |
To provide a cold forming method for diameter reduction of a metallic pipe, a method that can be carried out in a smaller equipment and machine.The cold diameter reduction press forming method for a metallic pipe is characterized in that...
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JP2003285162 |
To raise strength and rigidity as compared with a conventional welded T-joint even without reinforcing fitting.An end of another pipe 7 mounted on a peripheral surface 13 of one pipe 6 so as to cross in a T-shape is enlarged, and fillet ...
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JP2003285128 |
To provide a forming method for a hollow member and its end which is superior in design and also low in price by processing the end integrally with a middle part.The forming method is provided with a process, in which a hollow tube 16 ha...
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JP3474698 |
To enhance the fatigue strength at the connecting part between a flange and pipe with simple working, high productibity inexpensively. A reinforcing pipe 2 having the outer diameter smaller than the inner diameter of a main pipe 1 is ins...
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JP2003260531 |
To provide a method for manufacturing a strong structural member which can manufacture a strong structural member without the need to provide a number of welding equipment, can simplify the behavior of springback at the time of press mol...
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JP3470659 |
To provide a shock absorbing member that can dispersively absorb shocks of collision and is easy to form and inexpensive to manufacture, and a jig that is for use in forming the shock absorbing member. A shock absorbing member 1 comprise...
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JP2003251416 |
To provide a device for pressing and forming the end parts of a hollow material efficiently and accurately though the end parts are formed with punches by inserting core dies for satisfying a required formed shape into the hollow materia...
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JP3467545 |
To easily connect a thin-walled stainless steel tube to a joint by easily fitting a tip part of the thin-walled stainless steel tube into a hole in a body of the joint. This expansion device comprises an expansion head 5 having a fit-in ...
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JP2003245740 |
To provide a tube expanding tool which facilitates the removal of a steel tube after expansion work, is reduced in the number of replacement components, is excellent in assembling property and easily performs stroke control.The tube expa...
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JP3466219 |
PURPOSE: To provide a method and device for detent connection by which a bar-shaped body and an annular body such as a bolt and nut are tightly detent- connected. CONSTITUTION: A tapered surface 11B is formed inside the hole 11A of a die...
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JP2003236636 |
To easily manufacture a two-piece wheel by plastically forming regular curls of a rectangular section on both ends of a metal cylindrical member, and directly forming a rim from the cylindrical member.A drop center part is formed on a ba...
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JP2003230924 |
To prevent the buckling of a can body during forming by a reduction die, to perform large diametral reduction and to increase a tilting angle at the reduction working section.A fluid pressure holding tool 13 having an elastic film is ins...
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JP2003230917 |
To provide a method and a device for reducing a can body in diameter, which can secure reduction per process larger than heretofore and expedite a forming speed, while not causing any problem of a support mechanism such as a bearing brou...
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JP2003225834 |
To surely retain a column body and a shock absorbing member inside a cylindrical member by press-fitting them easily and appropriately.After a shock absorbing mat 3 is wrapped around a catalyst carrier 2, the catalyst carrier 2 is placed...
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JP2003200235 |
To provide a can manufacturing device capable of performing the necking even to a can of low height in which the necking cannot be performed because a guide ring is butted to a base pad in conventional device.In the can manufacturing dev...
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JP2003200241 |
To provide a method for closing a tubular end in which not only the mouth reduction and the mouth sealing but also the shape determination of an inner bottom surface can be reliably performed.The axis O2 rotation of a female tool 22 is i...
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JP2003191031 |
To provide a press which successively and efficiently presses works of excellent quality in a mass-productive manner when pressing a tubular end of small and short tubular works W in a swollen shape.This press 1 comprises: a working tabl...
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JP3447418 |
PURPOSE: To make the reduced hole diameter small with a few processes without causing winkle in the reduced diameter part and without reducing so much the inner vol. of a can at the time of manufacturing a smooth neck-in can. CONSTITUTIO...
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JP2003181554 |
To provide a method for spinning forming where a stock tube can be easily deflected without relatively inclining the center axis of the stock tube and a revolution center axis of a forming tool to each other.While relatively revolving th...
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JP3445526 |
To provide a production method of an inexpensive metal cylindrical body not generating a crack to a collar part/large diameter part and excellent in practicality/productivity, which is structured such that the metal cylindrical body has ...
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JP3442666 |
To easily and appropriately form a contracted part having an eccentric axis on an end part of a stock tube through the spinning. A spindle 21 is arranged parallel to the axis on a plane including the axis of a stock tube 4, a roller 28 i...
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