DEVICE FOR MANUFACTURING AND METHOD FOR MANUFACTURING COMPONENT WITH HAT-SHAPED CROSS-SECTIONAL SURFACE

WIPO Patent Application WO/2015/060202

A1

A device (500) for manufacturing a component with a hat-shaped cross-sectional surface is provided with: dies (502) that apply pressure to both side parts (601b, 601c) of a base material metal plate (601); a punch (504) that applies pressure to a center part (601a) of the base material metal plate (601); a pad (503) that sandwiches and holds the center part (601a) of the base material metal plate (601) between the punch (504) and the pad by applying pressure during mold clamping; and blank holders(505) that sandwich and hold both side parts (601b, 601c) of the base material metal plate (601) between the dies (502) and the blank holders by applying pressure during mold clamping. The device is also provided with a pressure limiting device (510) that includes a floating block (514) that moves as a unit with the blank holders (505) during the completion of molding of a curved component (501) and limits the application of pressure between the pad (503) and the blank holders (505) during mold release of the formed curved component (501) by intervention between the pad (503) and the blank holders (505) in order to suppress deformation of the curved component (501) during mold release.

TANAKA YASUHARU (JP)
ASO TOSHIMITSU (JP)
MIYAGI TAKASHI (JP)
OGAWA MISAO (JP)
YAMAMOTO SHINOBU (JP)
HAYASHIDA EIZO (JP)

PCT/JP2014/077612

April 30, 2015

October 16, 2014

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NIPPON STEEL & SUMITOMO METAL CORP (JP)
TOP DIE CO LTD (JP)

B21D22/26; B21D24/00

WO2014042067A1

2014-03-20

JPS54121954U	1979-08-25
JPS442698Y1	1969-01-31
JPH04422U	1992-01-06
JPS59175427U	1984-11-22
JPH07185684A	1995-07-25
JP2013006208A	2013-01-10

Taiyo, Nakajima & Kato (JP)
Patent business corporation solar international patent firm (JP)

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