Title:
MOLDED MATERIAL MANUFACTURING METHOD AND MOLDED MATERIAL
Document Type and Number:
WIPO Patent Application WO/2015/141017
Kind Code:
A1
Abstract:
A molded material is manufactured by molding processing including at least one time drawing-out processing, and at least one time drawing processing performed after the drawing-out processing. A punch (31) used for the drawing-out processing has a wider width on the back end side than that on the front end side. Ironing processing is performed on a region corresponding to a flange part of a starting material metal plate by pushing the starting material metal plate, together with the punch (31), into a push-in hole (30a).
Inventors:
NAKAMURA NAOFUMI (JP)
YAMAMOTO YUDAI (JP)
KUROBE JUN (JP)
YAMAMOTO YUDAI (JP)
KUROBE JUN (JP)
Application Number:
PCT/JP2014/062849
Publication Date:
September 24, 2015
Filing Date:
May 14, 2014
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
International Classes:
B21D22/20
Foreign References:
| JPS59178139A | 1984-10-09 | |||
| JP2006326671A | 2006-12-07 | |||
| JPH11169980A | 1999-06-29 | |||
| US6038910A | 2000-03-21 | |||
| JP2013051765A | 2013-03-14 |
Other References:
MASAO MURAKAWA: "Basics of Plastic Forming", 16 January 1990, SANGYO-TOSHO PUBLISHING CO. LTD., pages: 104 - 107
See also references of EP 3015184A4
See also references of EP 3015184A4
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)
Michiharu Soga (JP)
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