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JP5908085B2 |
A method of forming a groove in a pipe element by spin forming wherein the pipe element is pinched between an arbor revolving in an eccentric orbit of expanding diameter within the pipe element and an outer die which captures the pipe el...
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JP2016049544A |
To securely and tightly seal an end part of a tube by simple work irrespective of a thickness dimension of the tube.In a squeezing process of a tube 1, a molding tool 14 is rotated with respect to an opening end part 1A of the tube 1 and...
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JP5882641B2 |
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JP5874907B2 |
An expandable tube portion including slots arranged in a staggered fashion is expanded. When the expandable tube portion is expanded, the individual slots open to a cut end portion of the expandable tube portion are transformed to open i...
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JP5868101B2 |
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JP2016011612A |
To form a bell-mouth of sufficient height by burring processing while using a rolled steel plate of minimum required plate thickness.A bell-mouth is formed by successively implementing a prepared hole formation process, a burring process...
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JP5839389B2 |
A method of manufacturing a rectangular tube having a stepped portion includes: forming V-shaped grooves on a rectangular tube at surfaces of an end thereof in a direction parallel to a longitudinal direction thereof; and pressing each o...
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JP5835438B2 |
Construction is achieved that is capable of ensuring strength while making the thickness of part of a hollow cylindrical shaped steering column 10b thin. A drawing process is performed on the front-end section of a cylindrical member 19 ...
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JP2015213950A |
To provide a different-diameter pipe which is enabled to improve stability and to lower the cost from the two faces of production-inspection and to realize an arbitrary widening angle thereby to reduce a pressure loss.A different-diamete...
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JP5826077B2 |
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JP5822872B2 |
A method of forming a pipe end structure includes providing a pipe assembly including a metal pipe blank, a ridge, and a tubular fitting, and pressing an inner surface of the pipe blank outwardly. The ridge protrudes outward from an oute...
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JP2015205307A |
To simply manufacture a fastening sleeve having a fastening part formed at an end which can resist a large pull-out force by plastic working.A manufacturing apparatus 3 comprises a case 31 having a hollow part 312, a die 32 forced into t...
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JP5794455B2 |
A piping system (100) includes a flare machining mechanism and a screw machining mechanism that machines the ends of pipes (22) by cold-pressed formation. The flare machining mechanism flares the ends of pipes (22) outward and the screw ...
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JP2015171720A |
To provide a retainer of a flare molding tool which enables easy fixation of a pipe and a pipe holder and easy release of the fixation.A retainer of a flare molding tool includes: a pipe holder 2 which sandwiches a pipe 100; a holding pa...
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JP5767970B2 |
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JP5750795B2 |
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JP2015128786A |
To reduce costs.A pipe diameter expansion device A includes: a punch 23 which enters into a processed part M of a terminal of a metal pipe P and deforms the processed part M so that a diameter of the processed part M expands; and a nozzl...
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JP3198457U |
To provide a flare tool capable of efficiently and accurately performing flaring. A gauge bar 8 having a plurality of holding holes 8b for holding an end portion of a pipe P, and a plurality of holdings having a conical cone for pressing...
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JP5742033B2 |
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JP5727663B1 |
To improve pipe removal prevention performance when a locking ridge is formed on an outer peripheral surface of a joint portion by a rolling method, and the pipe ends of a pipe having the locking ridge are fixed by a housing and joined. ...
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JP5706953B2 |
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JP3196796U |
To provide a pipe expanding device for preventing damage to a pin and smoothly performing a diameter expanding process. A cone portion 21, a cone support portion 22, a shaft portion 23, a head portion 24, a pin 24b, a plunger 25, a screw...
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JP2015054337A |
To provide a pressing device capable of suppressing an increase in size and enhancing pressing force.A pressing device 1 comprises: a guide rail 2; a slide part 3 reciprocating back and forth along the guide rail 2; a pressing part 4 mov...
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JP5669891B2 |
Producing tubular stabilizer for a motor vehicle, preferably a tubular stabilizer half (2) for an active- or semi-active vehicle stabilizer, comprises at least sectionally kneading a tube having a constant cross-sectional geometry, from ...
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JP2015003326A |
To provide a buffer production method capable of suppressing generation of crack of a pipe in pipe expansion machining.Provided is the production method for producing a buffer for relaxing impact by inserting punches (first punch 61, sec...
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JP5641702B2 |
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JP5636187B2 |
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JP5622587B2 |
A crimping system for a fill tube of an industrial process transmitter system comprises a collar, a fill tube and crimp jaws. The collar comprises a passageway for receiving the fill tube, and a seat surrounding the passageway. The fill ...
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JP5609679B2 |
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JP5606332B2 |
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JP5604139B2 |
To provide a method of manufacturing a cleaning device for an automobile manufacturing a cleaning device for an automobile, in which at least one of cleaning bodies is formed into a nearly elliptic cylindrical shape or a nearly polygonal...
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JP2014188523A |
To provide a molding method for a cylindrical material capable of simply forming a bottom part with a through-hole to the cylindrical material using a simple device without generating the cutting chips which deteriorate the cleanliness o...
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JP2014184470A |
To provide an end portion folding device of a pipe crushing both end portions capable of preventing the deformation of a burring hole.In a center portion of a machine base 2, at burring holes Pb and Pb near both ends in a pipe P to be ma...
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JP5586514B2 |
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JP5578910B2 |
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JP5574752B2 |
A method for manufacturing a hollow engine valve, capable of simplifying the manufacturing process and reducing the manufacturing cost. A method for manufacturing a hollow engine valve is configured in such a manner that, in order to for...
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JP2014144466A |
To provide a shaft manufacturing device capable of shortening manufacturing time of a shaft, and capable of preventing unintended deformation of a long size work-piece, when executing drawing, even when the long size work-piece to be a w...
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JP5561445B2 |
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JP3192090U |
To provide a structure of a pipe expanding tool for expanding a pipe. A ring 2 and a bearing 3 are provided in a main body 1, and a shaft portion 5 is bored. The drive head 4 is connected to the shaft portion 5 on the main body 1, and ha...
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JP5545957B2 |
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JP5541624B2 |
The invention provides a pipe expanding apparatus of a thin wall stainless steel pipe in which a strain is not generated in a flange and a yoke, even when a pipe expanding rubber swells. The invention includes a flange which forms one in...
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JP5530168B2 |
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JP5506964B1 |
To simultaneously crush both ends of a pipe after burring, to prevent distortion of the pipe due to pressure at the time of crushing, and to prevent deformation of burring holes. A pair of pins 3 and 3 for positioning a pipe which is ins...
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JP2014512271A |
The invention refers to a device (11) for flanging the end (13) of a metal tube (13) to achieve a circumferential surface extending outward at right angles from the tube (13), comprising a flanging tool (17) adapted to be attached to the...
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JP5495496B2 |
A method for forming a part of deformed cross section with non-rotation symmetry on an end portion of a cylindrical workpiece (1). The method includes steps of performing a first relative motion (D1) of a roller (2) against the workpiece...
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JP5488726B2 |
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JP5487543B2 |
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JP5482879B1 |
To provide a method for improving a forge welded steel pipe manufactured by a conventional technique, in which a joint flat state and a crack prevention effect at the time of flaring are still insufficient. A steel strip end formed by mi...
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JP5479155B2 |
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JP2014069231A |
To provide a sealing structure of a pipe end part, the structure having an improved sealing capacity.A sealing structure of a pipe end part is provided, in which an end part of a pipe with seam portions in the axial direction being joine...
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