PRESS MOLDING METHOD

WIPO Patent Application WO/2017/002253

A1

Provided is a method of molding a pressed component (1) formed such that an end is substantially T-shaped in a front view and is constituted by a columnar part (2) and an protruding part (3) that protrudes to a large width from an end of the columnar part (2), the columnar part (2) being formed to have a substantially hat-shaped cross section and both longitudinal ends of the protruding part (3) being formed to have a substantially crank-shaped cross section. The molding method includes a first molding step for preliminarily molding a first molded article (W) from a blank material (5) and a second molding step for molding the first molded article (W) into a pressed component shape having a large depth. In the second molding step, top parts (2a, 3a) of the columnar part (2) and the protruding part (3) are pressed and constrained by a punch (15) and a pad (14) and then bending processing is performed by the punch (15) and a die (13) to form vertical wall parts (2b, 3b) and flange parts (2d, 2e, 3c) of the columnar part (2) and the protruding part (3). A bead part (16) is molded at a terminal of the top part (3a) when the top parts (2a, 3a) of the protruding part (3) are pressed and constrained.

FUNAMOTO YUUJI (JP)
KODAKA HIDEMOTO (JP)
KUROSAKI KUNIYASU (JP)

PCT/JP2015/069093

January 05, 2017

July 02, 2015

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NISSAN MOTOR (JP)

B21D22/26; B21D24/04

WO2014185428A1	2014-11-20
WO2015008495A1	2015-01-22

JP5614514B2	2014-10-29
JP2013035068A	2013-02-21
JPH11244952A	1999-09-14
JPS52147560A	1977-12-08
JPS63145519U	1988-09-26

KOBAYASHI, Hiromichi et al. (JP)

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