METHOD FOR MANUFACTURING BEVEL GEAR, METHOD FOR MANUFACTURING GEAR BLANK OF BEVEL GEAR, GEAR BLANK OF BEVEL GEAR AND DIE FOR MANUFACTURING GEAR BLANK OF BEVEL GEAR

Title:

METHOD FOR MANUFACTURING BEVEL GEAR, METHOD FOR MANUFACTURING GEAR BLANK OF BEVEL GEAR, GEAR BLANK OF BEVEL GEAR AND DIE FOR MANUFACTURING GEAR BLANK OF BEVEL GEAR

Document Type and Number:

Japanese Patent JP2003113402

Kind Code:

A

Abstract:

To provide an inexpensive method for manufacturing a bevel gear without manufacturing a mechanically cut a gear blank using the gear blank made by metal powder sintering, with high density and high strength.

This method for manufacturing the bevel gear comprises charging metal powder into a die so with, an upper compressing part 20, and a lower compressing part 30, compressing the powder to form the gear blank, and sintering, cutting and heat treating the gear blank to carburize. The die 10 has a cavity 40 conposed of a colum 42, a pressing part 44, an upper sprue 46 and a lower sprue 48. An upper plug 206 is integrally formed with a projecting block 204 integrated with the upper compressing part 20, while the lower plug 302 is formed in the lower compressing part 30.

Inventors:

SHU SHURYU
YO SORIN
SHO NENSHO
KO SHUNKI
RI KIRYU

Application Number:

JP2001399398A

Publication Date:

April 18, 2003

Filing Date:

December 28, 2001

Export Citation:

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Assignee:

PORITE TAIWAN CO LTD

International Classes:

F16H55/17; B22F3/02; B22F3/035; B22F3/10; B22F3/24; B22F5/08; C21D9/32; C22C38/00; C22C38/16; (IPC1-7): B22F3/02; B22F3/10; B22F3/24; B22F5/08; C21D9/32; C22C38/00; C22C38/16; F16H55/17

Attorney, Agent or Firm:

Kenzo Hara (3 outside)

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