Title:
METHOD OF MANUFACTURING EXTRUDING DIE AND EXTRUDING DIE
Document Type and Number:
Japanese Patent JP2010194572
Kind Code:
A
Abstract:
To reduce the cost of a surface treatment while imparting characteristics by surface treatment to a bearing part in the manufacture of an extruding die.
A die (20) is formed by dividing it into a main die (21) including the bearing part (25) and a sub-die (31) without including the bearing part (25) in the extruding direction, wherein the surface treatment is applied to only the formed main die (21).
Inventors:
TAKAHASHI AKINORI
Application Number:
JP2009042008A
Publication Date:
September 09, 2010
Filing Date:
February 25, 2009
Export Citation:
Assignee:
SHOWA DENKO KK
International Classes:
B21C25/00; B21C25/02
Domestic Patent References:
| JP2000246330A | 2000-09-12 | |||
| JPH0957334A | 1997-03-04 | |||
| JPS63260624A | 1988-10-27 |
Attorney, Agent or Firm:
Yoshihito Shimizu
Hisayoshi Shimizu
Ken Takada
Hisayoshi Shimizu
Ken Takada
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