Title:
METHOD FOR PRODUCING WHEEL AND WHEEL
Document Type and Number:
WIPO Patent Application WO/2010/026779
Kind Code:
A1
Abstract:
Provided are a method for producing a wheel having an excellent and uniform mechanical strength, and a wheel.
The method for producing a wheel comprises a preparation step (S1) for preparing a molten material by melting a light metal alloy, a casting step (S2) for producing a cast billet by casting the molten material, a preliminary forging step (S3) for producing a forged billet (2) by performing pressure compression of the cast billet (1) so that the forging ratio becomes 3.5 or more, a main forging step (S4) for producing pre-wheels (3a, 3b) by performing pressure forging of the forged billet (2) using a die, a heat treatment step (S5) for heat treating the pre-wheels, and a forming step (S6) for processing the pre-wheels (3a, 3b) mechanically.
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Inventors:
ONO KOTARO (JP)
MOCHIKAWA AKIJI (JP)
MOCHIKAWA AKIJI (JP)
Application Number:
PCT/JP2009/004419
Publication Date:
March 11, 2010
Filing Date:
September 07, 2009
Export Citation:
Assignee:
WASHI KOSAN KK (JP)
ONO KOTARO (JP)
MOCHIKAWA AKIJI (JP)
ONO KOTARO (JP)
MOCHIKAWA AKIJI (JP)
International Classes:
B21K1/34; B60B1/06; B60B3/02
Foreign References:
| JPH09249951A | 1997-09-22 | |||
| JP2008087066A | 2008-04-17 | |||
| JP2007210017A | 2007-08-23 | |||
| JP2007319895A | 2007-12-13 | |||
| JP2838593B2 | 1998-12-16 | |||
| JPS55144351A | 1980-11-11 |
Attorney, Agent or Firm:
SHIRASAKI, SHINJI (JP)
Shinji Shirasaki (JP)
Shinji Shirasaki (JP)
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