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JP2006007297A |
To provide a recessed groove forming method for easily performing the working control, enhancing the versatility for the groove width and the groove length, and reducing the working steps.When forming a plurality of recessed grooves 21a ...
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JP3731131B2 |
To improve the workability of a cylinder groove. In a cylinder groove working device 20 of a gas cylinder device in which a cylinder groove 6 capable of generating the expansion side damping force is formed on an inner circumference of a...
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JP2005349419A |
To provide a method of producing a heat exchanger tube capable of effectively stirring fluid passing through the inner and outer peripheries of the tube and having a high heat exchange performance, and to provide the heat exchanger tube....
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JP3716617B2 |
To provide the method for grooving the outer surface of a metallic tube by which an annular projection is prevented from being caused on the inner surface of the tube. In this method for grooving the outer surface of the metallic tube 2,...
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JP2005315556A |
To provide an inner-grooved pipe used as heat transfer tubes built in air cooled heat exchangers for air-conditioners for domestic and business use, having improved heat transfer performance.The inner-grooved pipe 1 comprises a set of gr...
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JP3715658B2 |
PURPOSE: To control deformation in a peripheral part adjacent to an area where recessed parts are formed by filling a specific filling member in the area for forming the recessed parts in the hollow member and then forming desired recess...
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JP3710388B2 |
To provide a manufacturing method of a cylinder-shaped body having a toroid protrusion on its inner surface which can process and form an extremely accu rate toroid protrusion on an inner surface of a cylinder with a high productivity br...
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JP3706865B2 |
To provide a groove forming method for a pipe material that enables forming even a thin pipe material to be grooved without being damaged and that also excels in productivity. This is a method for forming a groove 5 in a pipe material 1....
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JP3708175B2 |
To perform various punching operations in a short time without causing joints and to facilitate circular or curved working by moving a work horizontally with the work held in cooperation with a punch tip and a die tip and thereby carryin...
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JP3696968B2 |
To form a membrane having multiple streaks in high precision. Displacements at approach movement of upper dies 11a, 11b bisected and lower dies 17a, 17b bisected are detected by linear encoders 25a, 25b, 26a, 26b, by controlling the driv...
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JP2005249077A |
To realize endless circulation of a ball with simple structure without using an externally fitting part such as a circulation top and without using a shielding member, and to reduce costs more.In this screw shaft circulation type ball sc...
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JP2005230902A |
To provide a method for manufacturing a metallic pipe, which method can prevent the generation of cracks in a welded portion by restricting the final drawn position of the welded portion even when there are dispersions in sheet materials...
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JP2005523160A |
An apparatus and method for forming grooves in a pipe for receiving mechanical pipe clamps are disclosed. The apparatus includes a holding fixture for securing the pipe and a carriage rotatably mounted on the holding fixture. Two arms ar...
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JP2005522333A |
A method for manufacturing a directionally dependent reflective surface on a substantially cylindrical body ( 1 ). The method comprising the engagement of a tool ( 4 ) with the outside surface ( 8 ) of the body, thereby forming at least ...
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JP3677247B2 |
To provide a fluid bearing manufacturing device and a method thereof to manufacture a fluid bearing in which the high product accuracy and the mass production efficiency can be guaranteed. This fluid bearing manufacturing device and the ...
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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...
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JP2005138149A |
To provide a method and a device for manufacturing an inside grooved tube capable of stably working the inside grooved tube by suppressing the load in the drawing direction of a floating plug.A grooved plug 5 has a groove 4 on an outer c...
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JP2005515896A |
The invention relates to a forming tool ( 6 ) for construction member areas ( 2 ), comprising a forming device ( 10 ) and a fixing device ( 8 ), with which the construction member area ( 2 ) to be formed can be fixed relative to the form...
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JP2005511307A |
The invention relates to a method of notching a tube. The inventive method is characterised in that it comprises the to-and-fro movement of at least one pressure roller. During said movement, the aforementioned roller applies pressure lo...
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JP3643641B2 |
To provide a method of forming a C-shaped contoured rail with a constant thickness by rolling. In a contoured rail manufacturing method for manufacturing a contoured rail with a C-shaped cross section provided with an inward ridgeline 2 ...
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JP2005103557A |
To provide a device and a method for manufacturing a tube with grooved inner face by which grooves can be uniformly formed less liable to break the tube during machining even when using a long tube.Straightening rolls 25a-25e alternately...
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JP2005103603A |
To provide an apparatus for manufacturing a pipe with a grooved inner surface wherein deformation and rupture of a material pipe due to change of a rolling load are prevented, and also to provide a manufacturing method of the pipe with a...
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JP2005103602A |
To provide a tube with a grooved inner face capable of preventing a stock tube from being broken in its manufacturing process and excellent in grooving property, and to provide a method for manufacturing the tube.A holding plug 2, a plug...
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JP2005106111A |
To effectively perform injection of gas into a cylinder, insertion of a free-piston, and holding of a gas chamber in a manufacturing method for a single cylinder type hydraulic shock absorber.A mandrel 49 chucking the free-piston 5 at it...
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JP2005081393A |
To keep a shape of a metal tube by applying plastic deformation on the metal tube and then removing the stress gradient incurred inside and outside of the bending direction.A forming metal die 3 is equipped with a plurality of projected ...
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JP2005066640A |
To provide a groove cutting holder for a metallic tube, which easily cuts only a groove on a metallic tube and accurately adjusts the position and the depth of the groove.The groove forming holder for a metallic tube is used for cutting ...
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JP2005046906A |
To provide a device for manufacturing an inside grooved tube which is hardly broken during the working, and a method for manufacturing the inside grooved tube using the device.A holding plug 2, a plug shaft 4, and grooved plugs 5a and 5b...
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JP2005040844A |
To provide the manufacturing method of a tube with an inner groove capable of preventing breakage of a stock tube in a manufacturing step.A holding plug 2, a plug shaft 4, and grooved plugs 5a and 5b are disposed inside a stock tube 1. W...
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JP3618712B2 |
To provide a method for the formation of a notch with a sharp end in a support tube for a car seat with easy and economical implementation, an apparatus for implementing the method and the support tube for the car seat. A region containi...
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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...
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JP3610653B2 |
Each of specific rollers which corresponds to one of the grooves is disposed in a circumference of the metal pipe at equal intervals and is pressed against the periphery of the metal pipe 10, thereby forming a plurality of the grooves at...
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JP2005000937A |
To provide a method and an apparatus for producing a tube with grooves on the inner surface with which the long tube with the grooves on the inner surface can be mass-produced at a low cost without developing any defect.In the inner part...
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JP3607205B2 |
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JP3607661B2 |
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JP3607204B2 |
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JP3602744B2 |
To provide a method for working an inner surface of a cylindrical body to manufacture the cylindrical body with high dimensional accuracy at a low cost, and a working tool used therefor. In working at least one kind of recessed part of a...
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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 ...
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JP2004332943A |
To provide a compound heat transfer pipe and a manufacturing method thereof, having excellent heat transfer performance, bending workability, pressure resistance and productivity, and reducing the size and weight of a device to which the...
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JP2004330208A |
To provide a female screw member, and a method and a device for manufacturing the female screw member which have a simple structure and by which the efficiency of mass production is improved.The female screw member 30 is formed protrusiv...
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JP2004292917A |
To provide a method of producing a copper alloy smooth tube for a heat exchanger and a method of producing a copper alloy internally grooved tube for a heat exchanger by which a copper alloy tube having excellent brazability, and proof s...
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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 ...
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JP2004278854A |
To provide a double-walled pipe heat exchanger equipped with a reduced fluid resistance and an enhanced performance together with its easiness in manufacturing.The double-walled pipe heat exchanger is structured so that a ridge 3 is form...
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JP3572525B2 |
Two embodiments of a method for forming a banjo type axle housing are disclosed. Initially, one end of a tube is split into upper and lower sides by forming a pair of opposed longitudinally extending slots therein. The sides are spread a...
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JP3559784B2 |
An annular excess portion is disposed, a spline forming male mold is passed through a boss of a sheet metal-made rotary member in which a root portion of the boss and a peripheral portion are previously displaced, and the boss is set to ...
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JP2004243400A |
To provide a forming roll of a special shaped tube with which a layout pattern in the concave parts and the number of the concave parts are freely changeable in addition to that the dimensions of the concave parts can be kept in a prescr...
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JP3551223B2 |
To provide a method for easily forming a finned plate the height of the fine of which is sufficient without costing and by which increase of the size of a rolling device is evaded. Because a lot of fine grooves 13 which are parallel to t...
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JP3549906B2 |
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JP2004148385A |
To achieve a highly precise machining, an efficient production in a short period of time as well as a possible reduction of cost.A split die 3 made of a hard material, which has a main body of mostly cylindrical shape with a hole for thr...
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JP2004122156A |
To provide an apparatus for producing an internally grooved tube in which an internal groove with a stable shape in a longitudinal direction can be formed at a low production cost, and to provide a method for producing an internally groo...
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JP3520224B2 |
To provide an inner face working tool of a cylindrical body capable of working a recessed part such as a V shaped groove, etc., to a cylindrical body inner face, and a working method using the inner face working tool. The inner face work...
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