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JPH0531525A |
PURPOSE: To obtain the method for extrusion of a hollow material of aluminium alloy for wear resistance of a wall thickness of ≤10mm. CONSTITUTION: A billet 1 of aluminium alloy for wear resistance is charged in a container 2, and a ma...
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JPH059169B2 |
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JPH055606B2 |
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JPH055607B2 |
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JPH055608B2 |
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JPH057926A |
PURPOSE: To provide or extrusion die which can easily and surely execution extrusion forming of an extruding stock which scarcely generates deformation of flatness. CONSTITUTION: In each forming separation edge 4a, 5a of bearing parts 4,...
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JPH057921A |
PURPOSE: To reduce the tensile force which a mandrel receives at the time of manufacturing a pipe shape part by extrusion. CONSTITUTION: At the time of manufacturing a pipe shape part l.2b from a perforated stock 12 by extrusion, working...
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JPH057925A |
PURPOSE: To execute such extrusion forming as a failure of a stock leakage, etc., is not generated by allowing an annular deposition chamber and a container billet hole to communicate with each other by plural port holes. CONSTITUTION: A...
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JPH057922A |
PURPOSE: To manufacture a hollow and long-sized pipe shape part with high accuracy at the time of executing press forging. CONSTITUTION: In the manufacturing method for a pipe shape part obtained by executing press forging of the pipe sh...
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JPH057924A |
PURPOSE: To improve the service life of a die by decreasing a bending moment and shearing force by inclining each bridge of a male die of the die in a fan- shape toward the front in the extruding direction. CONSTITUTION: A mandrel suppor...
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JPH05210U |
[Purpose] By improving the hot extrusion die applied to the aluminum material, it is possible to achieve a long life and improve the processing accuracy of the obtained processed material. [Constitution] The hot extrusion die 1 applied t...
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JPH05250Y2 |
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JPH0478365B2 |
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JPH04344823A |
PURPOSE: To prevent the damage of a small hole part forming projecting part of a die male die, or to prevent the uneven thickness of an extruded parts member. CONSTITUTION: A small hole part forming projecting part 103 of a hollow die is...
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JPH0474107B2 |
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JPH0472627B2 |
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JPH0472614B2 |
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JPH04327315A |
PURPOSE: To manufacture the connecting rod main body part which generates no burr, and also, is free from rough surface on the surface, and is more excellent by strength of a connecting rod part and a small end part. CONSTITUTION: At the...
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JPH04327314A |
PURPOSE: To manufacture the connecting rod main body part which generates no burr, and also, is free from rough surface on the surface, and is more excellent by strength of a small end part. CONSTITUTION: At the time of manufacturing a c...
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JPH04319018A |
PURPOSE: To easily select a cutter, to improve the machining accuracy of an inclined part 10, and further, to easily automate the same machining. CONSTITUTION: The inclination part in a port-hole die 1, such as the inclination part in th...
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JPH0469010B2 |
An extrusion die (50) for forming honecomb structures comprises a body member (61,63) having an inlet face (54) and an outlet face (55), a plurality of interconnected slots (62) axially formed in the body member (61,63) and communicating...
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JPH0469106B2 |
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JPH0469008B2 |
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JPH0469009B2 |
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JPH04305312A |
PURPOSE: To manufacture a three dimensional extruded material having a sectional shape changed in the longitudinal direction by changing over the position of the tip forming part of a working body for forming during extrusion. CONSTITUTI...
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JPH04305311A |
PURPOSE: To extrude a large sized shape or a shape having a circumscribed circled of 1.5-2.0 times as large as the billet hole 1a of a container 1 while leakage of material from between a forming die 2, a press fitting die 3 and a distri...
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JPH04300043A |
PURPOSE: To manufacture a large forging forming vessel by a small-sized forging device by extruding a stock to a free extension space from an extruding gap between the peripheral edge of an opening part of a holding die, and a control di...
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JPH0462808B2 |
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JPH04274819A |
PURPOSE: To improve the effective life of a receiver having a flat hole for an extrusion molding machine by constituting this receiver of an inner bushing and outer component members shrinkage coupled thereto. CONSTITUTION: The receiver ...
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JPH04274817A |
PURPOSE: To improve dimensional accuracy heating the corresponding part of a billet where the amt. of the material flow into a die hole is small to a temp. higher than in the other parts in hot extrusion of an outside surface deformed pi...
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JPH04274820A |
PURPOSE: To improve the effective life of a flat receiver for an extrusion molding machine by constituting this receiver of a non-circular hole inner bushing having curvilinear chamfered part on the short sides of a cross-section and ano...
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JPH04262820A |
PURPOSE: To obtain a large amount of deformation with a small working force to eliminate the need for a large-sized equipment by inserting a tube expanding jig from the outlet side of an extruding machine into the inside of the tube unde...
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JPH0457450B2 |
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JPH0457451B2 |
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JPH0438885Y2 |
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JPH0457453B2 |
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JPH0457452B2 |
PURPOSE:To save manufacturing man-hour, while providing workmanship of high precision by employing a composite manufacturing unit comprising a wire-cut discharge machining device and a normal discharge machining device together with a st...
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JPH0450085B2 |
An extrusion tool for making a drill bit blank provided with an internal rinsing bore extending helically in a longitudinal direction of the drill bit blank, includes a nozzle having an inner wall defining a throughgoing axial bore throu...
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JPH0490524U |
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JPH0446655B2 |
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JPH04200818A |
PURPOSE: To prevent the occurrence of surface roughing due to the oxidation of a hollow stock after extrusion by forming a through hole in a mandrel in a longitudinal direction and also forming a hole communicating with the through hole ...
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JPH04200919A |
PURPOSE: To make a die thin in thickness, light in weight and low in cost by fixing the periphery of the die with cushioning material larger in linear expansion coefficient than a die case. CONSTITUTION: The cushioning material 3 between...
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JPH0428641Y2 |
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JPH0428643Y2 |
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JPH0428642Y2 |
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JPH0442085B2 |
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JPH04172123A |
PURPOSE: To make the metal flow uniform by setting a discard hole nearby the hole part for forming the thin wall part which is positioned at the thin wall forming hole part side than the drawing center of the modified shaped material for...
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JPH0433526B2 |
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JPH0428444B2 |
An extrusion die has a die aperture which is negatively tapered essentially throughout its length at an angle of at least 1 DEG such that any friction stress between the die lands and metal flowing through them is negligible, the length ...
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JPH04127914A |
PURPOSE: To prevent ununiform thickness of a tube and bad surface property from generation by detecting an amount of displacement at the tip of a mandrel, deciding whether it does not reach a tolerance and always controlling the directio...
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