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Patent Searching and Data


Title:
PRESS MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/002253
Kind Code:
A1
Abstract:
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.

Inventors:
FUNAMOTO, Yuuji (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
KODAKA, Hidemoto (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
KUROSAKI, Kuniyasu (Intellectual Property Department, 1-1, Morinosatoaoyama, Atsugi-sh, Kanagawa 23, 〒2430123, JP)
Application Number:
JP2015/069093
Publication Date:
January 05, 2017
Filing Date:
July 02, 2015
Export Citation:
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Assignee:
NISSAN MOTOR CO., LTD. (2 Takara-cho, Kanagawa-ku Yokohama-sh, Kanagawa 23, 〒2210023, JP)
International Classes:
B21D22/26; B21D24/04
Domestic Patent References:
2014-11-20
2015-01-22
Foreign References:
JP5614514B22014-10-29
JP2013035068A2013-02-21
JPH11244952A1999-09-14
JPS52147560A1977-12-08
JPS63145519U1988-09-26
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (Ekisaikai Bldg. 1-29, Akashi-cho, Chuo-k, Tokyo 44, 〒1040044, JP)
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