MANUFACTURE OF MG ALLOY MADE MEMBER

Title:

MANUFACTURE OF MG ALLOY MADE MEMBER

Document Type and Number:

Japanese Patent JP3281004

Kind Code:

B

Abstract:

PURPOSE: To provide a method for obtaining the good formability, restraining heating temp, in forging as lower as possible while avoiding lowering of the strength caused by thermal effect in the case of manufacturing a member of a wheel, etc., for bicycle with an Mg alloy, particularly, in the case of applying the forging to a part of this casting stock.
CONSTITUTION: By embedding a chillier 23 at position corresponding to the outer peripheral surface of a rim part in a cavity having the shape of the almost corresponding to the wheel shape as the finish product, at the time of forming the casting stock by using a mold, the above rim part is rapidly cooled and thereafter this rapidly cooled part is heated at 270°C and the forging is executed.

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Inventors:

Fujita, Makoto
Higuchi, Takahiro

Application Number:

JP1991000268357

Publication Date:

February 22, 2002

Filing Date:

September 18, 1991

Export Citation:

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Assignee:

MAZDA MOTOR CORP

International Classes:

B21H1/04; B21J5/00; B21J5/12; B22D15/00; B60B3/02; C22F1/00; C22F1/06; B21H1/00; B21J5/00; B21J5/06; B22D15/00; B60B3/00; C22F1/00; C22F1/06; (IPC1-7): B21H1/04; B21J5/00; B21J5/12; B22D15/00; B60B3/02; C22F1/06

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