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JP4411684B2 |
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JP4407825B2 |
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JP2010017747A |
To provide an extrusion die having a structure capable of selectively cooling a bearing part.The extrusion die (20) has the bearing part (25) for forming the inside surface (2a) of an extrusion material (1) and is provided with a passage...
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JP4401976B2 |
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JP4398428B2 |
The present invention provides a high-strength aluminum alloy extruded product exhibiting excellent corrosion resistance and secondary workability and suitably used as a structural material for transportation equipment such as automobile...
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JP4394714B2 |
In a molding die machining electrode 10, slit grooves of a molding die are machined with a slit groove forming part 22 having a substantially circular outer circumference by ranging hexagonal erected wall parts 23 in a row; while the inn...
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JP4388525B2 |
A method for forming a variable wall thickness axle or tube with internally thickened wall sections comprises extruding a tubular metal blank within an elongated die. An elongated punch pushes the blank through the die. The punch has an ...
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JP4386322B2 |
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JP4386321B2 |
The invention provides an extrusion molding process and a die for tube extrusion molding wherein a tube having an intermediate wall extended in a direction which crosses a direction in which the width of a tube varies can be formed easil...
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JP2009241100A |
To reduce fraction defective by preventing seizure from arising on the surface of an aluminum extruded material and preventing the occurrence of corner cracks and a deterioration in dimensional accuracy of corner parts (the occurrence of...
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JP4344464B2 |
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JP4344463B2 |
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JP2009220153A |
To provide a method of manufacturing a tube having a spirally grooved inside surface which is manufactured with a device having simple structure and has high productivity and its device.This device is a port hole die in which a die mandr...
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JP2009214172A |
To provide an aluminum extruded tube with which an aluminum drawn tube having excellent out-of-roundness is formable.The extruded tube for which an aluminum material composed of aluminum or an aluminum alloy is used and which is formed b...
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JP4328512B2 |
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JP4324671B2 |
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JP4315555B2 |
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JP2009178770A |
To provide a mold member-machining method in which a molten remained layer (machined transformation layer) of a part having a minute shape of a mold member with a minute discharge machining shape is uniformly accurately removed, and life...
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JP4308411B2 |
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JP2009166131A |
To provide an extrusion die for manufacturing a tube with many small hollow portions capable of suppressing under fill in a partition wall and reducing the width in a hollow part.An extrusion die 1 for manufacturing a tube with many smal...
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JP4304652B2 |
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JP4304651B2 |
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JP4305151B2 |
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JP2009131858A |
To improve the quality of a metal extruded material extrusion formed with a rotary wheel type continuous extrusion device.In the rotary wheel type continuous extrusion device provided with a base stock guiding passage 16 which is formed ...
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JP2009131863A |
To provide a mandrel which has improved strength of a forming cylinder corresponding to miniaturization of holes in a die for extruding a flat multi-hole tube.The mandrel (10) is used for forming holes of a tube in the extrusion die for ...
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JP4275940B2 |
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JP2009107019A |
To provide a twist forward extruding method and a twist forward extruding apparatus by which extrusion at a low pressure is made possible by friction stirring and which is suitable to the production of a large size fine particle bulk mat...
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JP4262815B2 |
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JP4262814B2 |
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JP2009090359A |
To provide a device and a method for reducing extruding load by efficiently applying twisting strain in a twist forward extrusion by which the internal structure of a material is fined by applying the large twisting strain to a solid mat...
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JP4239182B2 |
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JP4234622B2 |
To provide a polygonal section faithful to the target shape when extruding a long coated body having a polygonal section. An extrusion die 1 extrudes a long coated body so that the sectional shape of the coated body is polygon. The shape...
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JP2009506895A |
A forming tool ( 20 ) it comprises a substrate ( 21 ) and a metallic glass layer ( 23 ) on at least the working surface ( 22 ) of the forming tool ( 20 ) wherein the forming tool is one of: a) a forming tool of an extrusion press; b) a d...
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JP4227419B2 |
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JP4211038B2 |
The invention relates to a hollow chamber profile made of metal, especially for heat exchangers. Said profile is made of an extruded base profile (10) having two broad parallel sides and two narrow sides or is made of a base profile whic...
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JP4196478B2 |
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JP2008279504A |
To provide a rotary wheel type continuous extruder and a method of manufacturing a metal extruded material, wherein the metal extruded product is manufactured stably over a long term without scratching component members of the device wit...
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JP4174173B2 |
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JP2008254055A |
To provide a press-contact mandrel for hot extrusion with which the manufacturing cost of a mandrel is reduced by facilitating the change of only a mandrel which is only a consumable part.In the mandrel for hot extrusion, the mandrel is ...
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JP2008254059A |
To prevent cracking caused by the local melting in an inner circumferential surface of a hollow extruded material when manufacturing the hollow extruded material of an aluminum alloy in a mandrel system in a hot extrusion method.When man...
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JP2008246580A |
To provide a manufacturing method of a core of an extruding die capable of prolonging the lifetime of the core of the extruding die formed by the electric discharge process.A male die 4 for forming a hollow part in a flat perforated tube...
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JP4154337B2 |
An impact extrusion molded article that is molded while the metal-flow from a bottom of a slug set in a dice toward the side of the molded product article is suppressed; an impact extrusion molding method for manufacturing the impact ext...
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JP4145594B2 |
It is an object of the present invention to provide a novel aluminum tube of an oval cross section that has a wider range of applications and added values. A disk-shaped metal slug (21) is impact-extruded with the use of a die (14) and a...
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JP4144438B2 |
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JP2008194749A |
To provide a method for increasing twisting strain over the full length of material when the inner structure of the material is to be micronized by applying a large twisting strain to a solid material and a powder material such as metal ...
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JP4101614B2 |
Amethod of manufacturing a high-strength aluminum alloy extruded product which excels in corrosion resistance and stress corrosion cracking resistance, and is suitably used in applications as structural materials for transportation equip...
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JP2008126256A |
To provide a tool for a hot extrusion press for manufacturing a steel tube through hot extrusion.The tool for a hot extrusion press for manufacturing the steel tube through hot extrusion has a tapered shape on an inner surface on the bac...
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JP4092306B2 |
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JP4076504B2 |
A withdrawing device for a press that outputs an elongated workpiece in a direction has a first guide extending in the direction and carrying a first carriage movable by a first motor. A second guide extending in the direction on the fir...
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JP4029646B2 |
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