METALLIC STRUCTURE MEMBER AND ITS MANUFACTURING METHOD

Title:

METALLIC STRUCTURE MEMBER AND ITS MANUFACTURING METHOD

Document Type and Number:

Japanese Patent JP2006255750

Kind Code:

A

Abstract:

To provide a method of manufacturing a metallic structure member having excellent strength at a reasonable manufacturing cost.

This method compeises: a stage for forming a preformed body 20 having a part where work hardening on the basis of the impartation of shearing strain is caused from a tubular base stock; and a stage for hydrostatically forming formed goods which are applied to the metallic structural member by bulging and deforming the preformed body 20 by the impartation of the liquid pressure to the inside of it.

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Inventors:

MOTOJIMA FUMIHIKO
WATANABE SHIGEO

Application Number:

JP2005075697A

Publication Date:

September 28, 2006

Filing Date:

March 16, 2005

Export Citation:

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Assignee:

NISSAN MOTOR

International Classes:

B21D11/14; B21D26/033; B21D26/035; B21D26/041; B21D53/88; B62D25/04; B62D25/20

Attorney, Agent or Firm:

Mikio Hatta
Yasuo Nara
Katsuyuki Utani

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