| Document |
Document Title |
|
JP3670774B2 |
To form plural pieces of recessed parts of good positional accuracy on the peripheral surfaces of joint parts. Plural pieces of inside dies 3 having molding projection-shaped parts 5 are disposed in a molding die 2. A master die 9 provid...
|
|
JP3671551B2 |
To reduce weight by thinning a thickness of a side wall main part, lengthen the working sevice life by increasing capacity, and reduce weight by thinning it more than a bead part requiring calking work though calking strength is made obt...
|
|
JP3671760B2 |
To obtain a ring shaped member without limitation in size and thickness in a high yield by plastically deforming a tip side in the radial direction with compressing a cylindrical member in the axial direction and punching a ring shaped m...
|
|
JP3668526B2 |
To simply connect a rubber hose to a joint by forcing a rotating tool for expanding the diameter of a hose hole into the hose hole to generate frictional heat and drawing out the tool for expanding the diameter of the hose hole to fit th...
|
|
JP2005125353A |
To provide a metallic cylindrical member working method in which a connection part angularly deviated from the axis of a cylindrical part can be easily formed without increasing the number of part items and working process steps, and to ...
|
|
JP2005120924A |
To prevent the occurrence of poor welding by eliminating great dispersion of welding between an inner cylinder and an outer cylinder arranged outside thereof when connecting a neck portion of the inner cylinder to a neck portion of the o...
|
|
JP3641444B2 |
To taper a square tube with high strength maintained, with lessened processing steps and at low costs. While two opposite faces 14 and 14' of the square tube are being bound by side sheets 54 and 54', the other two opposite faces 12 and ...
|
|
JP3633711B2 |
To easily manufacture an exhaust pipe multi-branch connecting member to be used for an exhaust system of an internal combustion engine of automobile or motorcycle or the like, especially a multi-branch connecting member formed asymmetry ...
|
|
JP3625039B2 |
To provide an auxiliary caulking jig which is to be used in the caulking where a cylindrical end part of a shaft body to which an annular body is externally fitted is expanded outwardly in the radial direction to prevent the annular body...
|
|
JP2005046880A |
To provide a die for forming the end of piping with which the yield rate can be improved by preventing deformation when the piping is released from the die.This die enters the end part of the piping 1 which is plastically deformable, and...
|
|
JP2005046870A |
To provide a working apparatus and a working method of a metallic tube by which the alteration of crystal structure in a diameter reducing part of the metallic tube by being affected by heat or the like is prevented, also longitudinal ma...
|
|
JP3620114B2 |
|
|
JP3618127B2 |
In a method for the production of press fittings, especially those made of copper, a blank (11) is held in a die (2), supported on the inner wall in the pipe connection region by means of a supporting mandrel and is then upset axially, t...
|
|
JP3612295B2 |
|
|
JP2005000930A |
To provide equipment for spinning, which have a simple structure and in which a tube stock is easily formed into an arbitrary shape with excellent accuracy by spinning, and to provide a method for using it and a catalytic converter manuf...
|
|
JP2004353549A |
To provide a method for producing a fluid treatment device having a honeycomb structure built therein in which a barrel portion of a cylindrical member is reliably held, a necking portion is formed on an end part, and the cylindrical mem...
|
|
JP2004351499A |
To provide an end forming device of a pipe member which can perform such processes as continual cutting and rolled-in hemming with a punch operated by a machining shaft parallel to a workpiece axial center after an eccentric expansion fo...
|
|
JP2004347134A |
To provide a complex heat exchanger tube superior in heat transfer performance, bending workability, pressure resisting strength and productivity and helpful for smaller and lighter equipment to be used, and its manufacturing method.The ...
|
|
JP3599626B2 |
To provide a manufacturing method for a steel tube column having sufficient strength through welding at two places. The steel tube column consists of a semi-formed long size steel tube 1 having a prescribed plate thickness (t) and a semi...
|
|
JP2004337945A |
To provide a tubular body forming method that facilitates the formation of a tubular body in which surface rigidity is improved to reduce radiant sound.By pressing a roller 12 against the outer periphery of a tubular body 1, the roller 1...
|
|
JP2004337898A |
To provide a hydraulic forming method for a tubular member in which strains can be introduced to a tube-expanding part by regulating the inflow of a material from a tube-non-expanding part to the tube-expanding part when the tubular memb...
|
|
JP2004291048A |
To provide a spinning former by which forming cycle is shortened and which is compact and of low cost, without deteriorating its processing accuracy.Both forming rollers 2 and cutters 4 are rotationally driven by one rotation axis 18. Li...
|
|
JP2004291072A |
To provide a working method of an end part of piping, a method that causes no noticeable lowering of strength or breaking at the end part even in the case of a large expansion rate in expanding the end part of the piping, and also to pro...
|
|
JP3578320B2 |
To provide a pipe molding method wherein a pipe compression is performed in a way either a compression part is positioned at outside exceeding an inner diameter of the original pipe, or, an axial core of the compression part may have an ...
|
|
JP2004283863A |
To provide a sealed tubular body whose insertion hole has excellent sealability without subjecting a sealing member to striking, and to provide a method for manufacturing a sealed tubular body.The sealed tubular body comprises a tubular ...
|
|
JP3569006B2 |
In a process for shaping the end of a tube (2) with an oblong cross-section to a circular cross-section the shaping occurs in a single radial compression stage from the exterior. The tube (2) is disposed with its shortest axis in corresp...
|
|
JP3565462B2 |
To reduce number of core metals for expanding the diameter of a ring and to shorten the time of changing work of the core metal by forming the core metal for expanding the diameter of the ring to plural curving surfaces having different ...
|
|
JP3562461B2 |
|
|
JP2004243368A |
To provide a pipe expander which can easily expand pipes on a construction site.A mounting member 30 is divided into a clamp part 31 fitted to a pipe 50 and a slit part 41 provided on a holding frame part 20 and is capable of holding the...
|
|
JP3554855B2 |
An apparatus of diametrically exanding a desired portion of a metal shaft, including a driver section (5) which is rotatively driven by an electric motor with a workpiece held in a first sleeve thereof, a driven section (30) having a sec...
|
|
JP3549750B2 |
|
|
JP3546937B2 |
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...
|
|
JP3546643B2 |
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...
|
|
JP2004202559A |
To provide a working method by which tubular parts having a bulged part in the middle part are worked at a low working cost, at short cycle time, by easily maintained equipment and, even when a material to be worked is such an article as...
|
|
JP2004518537A |
The invention pertains to a method and forming machine for deforming a hollow workpiece having at least one open end, wherein the workpiece is clamped down in a clamping device, at least one forming tool is placed into contact with the s...
|
|
JP2004122189A |
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...
|
|
JP2004114147A |
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...
|
|
JP2004106002A |
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 ...
|
|
JP2004106001A |
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...
|
|
JP3514730B2 |
The present invention, the objective of which is to enable a reduction of the number of component parts of a drawing system, improve the durability and accuracy of the final casting shape with a mandrel device, by utilizing a compact spe...
|
|
JP2004082141A |
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...
|
|
JP3506015B2 |
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...
|
|
JP3505064B2 |
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...
|
|
JP2004505781A |
The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device...
|
|
JP3500109B2 |
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 ...
|
|
JP2004025221A |
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...
|
|
JP2004025214A |
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...
|
|
JP3490947B2 |
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...
|
|
JP2004501773A |
Special steel press fittings are produced in two process steps, which can be performed simultaneously, or also one after the other. The cut to size blank is widened in a die is upset in order to form the desired pipe connection areas.
|
|
JP3488331B2 |
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...
|
