Title:
パネル状成形品の製造方法
Document Type and Number:
Japanese Patent JP6614160
Kind Code:
B2
Abstract:
A panel-shaped formed product (1) made of a metal sheet includes a top panel portion (2), an opening portion (3), and a vertical wall portion (4). The top panel portion (2) is polygonal. The opening portion (3) is provided in the top panel portion (2). The vertical wall portion (4) extends from at least not less than two adjacent borders among the borders of the top panel portion (2). At least one pair of each vertical wall portion (4) of pairs of adjacent vertical wall portions (4) of the vertical wall portions (4) has a stepped portion (5). As a result, the panel shaped formed product (1) has fewer defects such as cracks and wrinkles even when it has a shape that is difficult to form.
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Inventors:
Kenichiro Otsuka
Yoshiaki Nakazawa
Norihiko Nomura
Toshiya Suzuki
Masahiro Kubo
Yoshiaki Nakazawa
Norihiko Nomura
Toshiya Suzuki
Masahiro Kubo
Application Number:
JP2016565919A
Publication Date:
December 04, 2019
Filing Date:
December 22, 2015
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21D22/26; B21D22/20; B21D24/00; B60J5/00
Domestic Patent References:
| JP2093021U | ||||
| JP2009274590A | ||||
| JP2010527407A | ||||
| JP2014144737A | ||||
| JP2012153209A | ||||
| JP2013173481A | ||||
| JP2003048430A | ||||
| JP2008242787A | ||||
| JP2002331317A | ||||
| JP2014065411A | ||||
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| JP8010861A | ||||
| JP63168232A | ||||
| JP6031351A | ||||
| JP2001058220A | ||||
| JP2005248320A |
Foreign References:
| US20040012226 |
Other References:
「超高張力鋼板」の採用を25%に拡大[日産自動車],AEG自動車技術者のための情報サイト、[online],日本,公益社団法人自動車技術会,2013年 3月12日,全文,[平成30年11月26日検索],インターネット,URL,http://quide.jsae.or.jp/topics/50708
Attorney, Agent or Firm:
Ascend Patent Business Corporation