Title:
STEPPED DIE
Document Type and Number:
WIPO Patent Application WO/2015/145842
Kind Code:
A1
Abstract:
Provided is a stepped die comprising a cylindrical inner ring, and a cylindrical outer ring that is shrink fit to the outer circumference of the inner ring. A molding-use recess having a stepped portion is formed on the inner side of the inner ring. The shrink-fit rate of the outer ring with respect to inner ring is set to 0.12-0.25%.
Inventors:
UOZUMI MASATO (JP)
HIRONO SHINICHI (JP)
HIRONO SHINICHI (JP)
Application Number:
PCT/JP2014/077688
Publication Date:
October 01, 2015
Filing Date:
October 17, 2014
Export Citation:
Assignee:
SUMITOMO ELECTRIC SINTERED ALY (JP)
International Classes:
B30B15/02; B21D37/02; B21D37/20; B30B11/02
Foreign References:
| JP2005342744A | 2005-12-15 | |||
| JP2006305626A | 2006-11-09 | |||
| JP2006334630A | 2006-12-14 | |||
| JP2001138002A | 2001-05-22 | |||
| JPS61273231A | 1986-12-03 | |||
| JPH02111661A | 1990-04-24 |
Attorney, Agent or Firm:
SunCrest Patent and Trademark Attorneys (JP)
Patent business corporation Sun Crest international patent firm (JP)
Patent business corporation Sun Crest international patent firm (JP)
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