Title:
【発明の名称】金属材料の押出成形用ダイス
Document Type and Number:
Japanese Patent JPH0681644
Kind Code:
B2
Abstract:
An extruding die (1) for metallic materials comprising a male die (2) and a female die (3) is provided with a billet-receiving face (2c) of the male die (2) shaped into convex form. It is possible to reduce breakage frequency of the extruding die (1) by reducing the tensile stress applied on the male die (2) at the time of the extrusion.
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Inventors:
OKI YOSHINARI
TANAKA TAKESHI
TSUNO RYOJI
YOSHIDA YOSHIHIRO
TANAKA TAKESHI
TSUNO RYOJI
YOSHIDA YOSHIHIRO
Application Number:
JP5592289A
Publication Date:
October 19, 1994
Filing Date:
March 08, 1989
Export Citation:
Assignee:
SANKYO ALU IND
International Classes:
B21C25/02; B21C25/00; (IPC1-7): B21C25/02
Domestic Patent References:
| JP53102938U | ||||
| JP61177708U | ||||
| JP4946707B1 | ||||
| JP5856657B2 |
Attorney, Agent or Firm:
Yutaka Oshio
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