Title:
METHOD FOR MANUFACTURING TOOTH-SHAPED COMPONENT, AND TOOTH-SHAPED COMPONENT
Document Type and Number:
WIPO Patent Application WO/2016/117369
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a tooth-shaped component, the method comprising: a drawing step for drawing a workpiece to obtain a cylindrical container having a bottom surface part and a side surface part; a diameter reduction step for diameter reduction of a specific region where a tooth tip is to be formed in the side surface part of the cylindrical container, thereby increasing the thickness of a corner part between the bottom surface part and the side surface part in such a way that the shape of the outside of the corner part satisfies the conditional expression (1); and a tooth shape molding step for forming the tooth tip in the specific region of the cylindrical container having undergone diameter reduction in the diameter reduction step, and thereby obtaining a tooth-shaped component having the bottom surface part, the side surface part, and the tooth tip part. (ΔR + ΔH) ≤ 2t … (1)
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Inventors:
YAMAGATA MITSUHARU (JP)
YAMAMOTO SHUJI (JP)
TSUKANO YASUSHI (JP)
YAMAMOTO SHUJI (JP)
TSUKANO YASUSHI (JP)
Application Number:
PCT/JP2016/050348
Publication Date:
July 28, 2016
Filing Date:
January 07, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
B21D53/28; B21D22/30
Foreign References:
JPS6311126U | 1988-01-25 | |||
JP2885266B2 | 1999-04-19 | |||
JPS61182837A | 1986-08-15 | |||
JP2014091146A | 2014-05-19 | |||
JP5610104B1 | 2014-10-22 | |||
JPS5377869A | 1978-07-10 |
Other References:
See also references of EP 3248705A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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