Title:
WHEEL RIM MANUFACTURING METHOD AND AUTOMOBILE WHEEL RIM MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/137463
Kind Code:
A1
Abstract:
This wheel rim manufacturing method comprises a molding step for molding a cylindrical rim material into a rim shape, and a thickening step for increasing the plate thickness of at least one opening edge of the rim material before and/or after the molding step. In the thickening step, a thick part is formed by applying a compression load in an axial direction of the rim material onto the opening edge in a state in which the opening edge has been inserted into an annular groove of a metallic mold, the annular groove being wider than the plate thickness of the opening edge.
Inventors:
KASEDA YOSHIYUKI (JP)
MIKAZUKI YUTAKA (JP)
MIKAZUKI YUTAKA (JP)
Application Number:
PCT/JP2015/057362
Publication Date:
September 17, 2015
Filing Date:
March 12, 2015
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21D53/30; B21H1/04; B21J5/08; B60B21/00
Domestic Patent References:
| WO2011125968A1 | 2011-10-13 | |||
| WO1996025257A1 | 1996-08-22 |
Foreign References:
| JP2005349455A | 2005-12-22 | |||
| JPH11333537A | 1999-12-07 | |||
| US20090189391A1 | 2009-07-30 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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