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JP3695156B2 |
To remarkably improve the breakage life of comb-teeth in a mandrel. The microporous tube is obtained by extrusion by the die 1 for extrusion. The die 1 for extrusion, has a die 10 having a flat shaped opening part 11 provided along the e...
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JP3690900B2 |
To provide an extruding method for a clad by which a different kind of a material such as a brazer material including a flux consisting of a powder compacted material is precisely stably made to clad in an aimed part of a base metal such...
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JP2005219084A |
To provide a method for manufacturing a hot-extruded seamless steel tube having excellent inner surface quality.In the method for manufacturing the hot-extruded seamless stainless steel tube having excellent inner surface quality, hot-ex...
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JP3668063B2 |
To position and form the deposited portion of a deposited member composed of a difficult extrusion material at a corner part by less number of corrections of bearing portion. A deposited material consisting of an extruded material is div...
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JP3654466B2 |
To produce an aluminum alloy material having a structure refined into the grain size of ≤1 micron and balanced in strength and toughness on an exceedingly high level and to provide an extruding method capable of producing the material ...
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JP2005131667A |
To prevent herringbone(rough surface), which is generated on an inner surface of a hot-extruded seamless steel tube when extruding the tube, and especially to prevent the generation of herringbone in hot-extruded seamless stainless steel...
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JP3650655B2 |
To provide a flow guide capable of easily determining the shape of an opening part, and optimizing the flow speed of the metallic material inside die holes by the opening part. The shape of a flow guide opening part 53 is determined in t...
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JP2005125378A |
To provide a method and a device for highly efficiently manufacturing a tube of high dimensional accuracy in which a die and/or a plug can be efficiently exchanged in manufacturing the tube of high dimensional accuracy by extrusion.In th...
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JP3649673B2 |
To provide an extrusion device which can manufacture an extruded section bar of composite material having an arbitrary cross-sectional shape without being limited by a cross-sectional shape, the approximate similarity of shape of a compo...
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JP3645453B2 |
To highly precisely form a hollow shape with high quality by correcting the bearing part at a small number of times. After branching a material to be deposited by plural entry ports 7a, 7b, passing them through these ports 7a, 7b, joinin...
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JP3645963B2 |
To reduce a die repair cost when wear is generated to a bearing part of mandrel. A mandrel 5 is held to a holding member 7 with a support member 6, the support member 6 is constructed piling with four unit support members 6a... in the ma...
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JP3643262B2 |
To provide an extruding method to give a bend to an extruded stock formed of a resin, a metal, etc. In the extruding method using the die shift, two dies 5, 6 are arranged on an extrusion port 12 formed in a container in a parallel manne...
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JP2005103609A |
To provide a rotary wheel type continuous extrusion device capable of suppressing mixing of oxides in a product to be extruded by suppressing the flow of dead metal formed in an assembly chamber.The rotary wheel type continuous extrusion...
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JP3633281B2 |
To obtain the manufacturing method for extruding the metal tube whose thickness deviation is small without incoincidence between the axial center of a mandrel and the center of a die. After attaching a nose 8 whose diameter is slightly s...
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JP3632002B2 |
In a method for producing curved work pieces, an extruded profile leaves the die of an extruder in the strand discharge direction and is then bent into a curved shape by external forces. The extruded profile that leaves the die, before b...
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JP3630235B2 |
To manufacture a twisted section in excellent dimensional accuracy as well as one intermittently twisted in its longitudinal direction, or one twisted in an uneven pitch rather than an even pitch. A forming die apparatus is comprised of ...
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JP3630227B2 |
To obtain a variable cross section extruding material extending straight without bending deformation as well as a stable extrusion forming to be executed when the variable cross section extrusion material is obtained by extruding a mater...
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JP2005059022A |
To provide an extruding die for a hollow shape material by which an extruding speed can be increased while suppressing an extruding load without the occurrence of cracks to the cross section and the occurrence of shrinkages to the cross-...
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JP3617208B2 |
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JP3613913B2 |
To form an opening part in a direction orthogonal to the extruding direction on a formed body at the time of extruding and, thus, to enable freely extruding members having complicated shape. This extruding device is provided with a 1st d...
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JP3613926B2 |
To obtain variable cross section extruding die and its method in which an inclined angle varies toward the externally extruding direction of a member in a single process and in which a projected part with a constant thickness and an exce...
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JP3613914B2 |
To obtain a manufacturing method of a die for extruding variable cross section with which link members having the wide dimensional range is easily extruded without bringing making the device large and the link members using the same die....
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JP2005013997A |
To easily and securely prevent the defective extrusion such as variations in shape and wall thickness, or the torsion in a longitudinal direction from being generated in an aluminum bar material at an initial stage of extrusion or a stag...
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JP3612040B2 |
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JP3610712B2 |
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JP2005000996A |
To provide a method for fining the internal structure of a material by applying very large twist strain to the solid material and the powdery material of metal or high polymer, etc.The lower end surface in contact with a die, of a hollow...
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JP2005000993A |
To provide a method for making large of twist strain over the whole length of a material, in the case of fining the internal structure of the material by applying the large twist strain to the solid material and the powdery material of m...
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JP3607514B2 |
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JP3603517B2 |
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JP3601126B2 |
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JP3598465B2 |
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JP3598143B2 |
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JP3598464B2 |
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JP2004330270A |
To provide a die for processing a metal in which seizure does not occur in an non-lubricating state or when water is used as a lubricant.The die for processing the metal is made of engineering plastic such as a polyamide (PA), aramid (PA...
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JP3588859B2 |
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JP3589164B2 |
To provide an extruding method by which bends generated on a wire rod, a steel bar and a steel wire are reduced. Using a hole die having the half angle θ(°) of an outlet-side taper angle which satisfies the formula 1 and also the ratio...
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JP2004306124A |
To provide an extrusion die for a metallic hollow material which can reduce production cost and maintenance cost, has no restrictions on the cross-sectional shape in the hollow part of a hollow material, hardly causes cracks and chipping...
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JP3585815B2 |
To enable molding of a honeycomb molding capable of very thinly forming a width of a molding groove, accurately forming an inner surface of a branch channel in a clean surface shape of a small unevenness of a flowing resistance and resul...
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JP3584530B2 |
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JP3584516B2 |
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JP3584532B2 |
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JP2004531398A |
The invention relates to plastic working of metals, in particular, to a method of fabricating workpieces of metals and alloys by plastic deformation, including fabrication of long-length workpieces with a conditioned fine-grained structu...
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JP2004285429A |
To provide an alloy and a formed article which have excellent mechanical strength, ductility and impact resistance, and have no anisotropy in mechanical properties.In the method of producing an extrusion material, the crystal grain size ...
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JP2004283881A |
To prevent an occurrence of die lines such as lines and seams caused by corrugated aluminum oxide layers which are formed and adhere to a die during an extrusion work of an aluminum extruded section.The aluminum extrusion die 1 having a ...
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JP3567264B2 |
When used, a hot extrusion forging die for use in titanium alloy according to the present invention extrusion works a heated titanium alloy-made billet in such a manner as to diameter-reduce the billet. The hot extrusion forging die for ...
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JP3557092B2 |
To supply a high-quality NiTi-alloy pipe at a low cost by extruding a pipe part by backward extrusion method using a mandrel while forward extruding the tip part of a billet from a die. The NiTi-alloy 1 to be worked is heated to 650-800 ...
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JP3555384B2 |
To obtain a die for extruding variable cross sections with which a tubular member whose outside dimension and inside measurement are freely changed toward the longitudinal direction is greatly easily formed without bringing about complic...
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JP2004223524A |
To handily and surely eliminate the generation of extruding failures such as variations of wall thickness and shape between a beginning step and a later step of an extrusion and torsion in the longitudinal direction in an aluminum bar ma...
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JP3550682B2 |
To provide an extruding die capable of preventing a camber, a deformation, and a bending of an extruded shape steel stock. The extruding die 1 is provided with a flow resistance adjusting section 35 by giving a clearance to a forming ape...
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JP2004148358A |
To provide an extrusion method and extrusion mechanism for pipe-shaped articles P capable of averting the fracture due to tension even if the length of the pipe-shaped articles to be extruded is set large and a drawing rate Sp/Sw is set ...
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