Title:
MANUFACTURE OF EXTRUDING DIE
Document Type and Number:
Japanese Patent JPH04319018
Kind Code:
A
Abstract:
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 the tip part area (A) of the bridge part (3) is machined into a stepwise inclined part (10).
Inventors:
SUGIO EIJI
YANO SADAHIDE
YANO SADAHIDE
Application Number:
JP8536991A
Publication Date:
November 10, 1992
Filing Date:
April 17, 1991
Export Citation:
Assignee:
SHOWA ALUMINUM CORP
NIKKO KIKAI SEISAKUSHO KK
NIKKO KIKAI SEISAKUSHO KK
International Classes:
B21C25/02; B23P15/24; (IPC1-7): B21C25/02; B23P15/24
Attorney, Agent or Firm:
Yasuhisa Kurose (2 outside)