Title:
A manufacturing method of a panel-like cast
Document Type and Number:
Japanese Patent JP6206620
Kind Code:
B2
Abstract:
A manufacturing method includes a preparing step, an intermediate pressing step, a heating step, and a hot stamping step. In the preparing step, a blank is prepared. In the intermediate pressing step, press working is applied to the blank to produce an intermediate formed product (1A). In the heating step, the intermediate formed product (1A) is heated. In the hot stamping step, press working is applied to the intermediate formed product (1A) to produce a panel-like formed product. In the hot stamping step, a machine (10) including a first die (12), a second die (13), a punch (11), and a blank holder (14) is used. While the intermediate formed product (1A) is pinched between the first die (12) and the punch (11), the second die (13) and the blank holder (14) are moved relative to the first die (12) and the punch (11), and thereby, the panel-like formed product is produced.
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Inventors:
Kenichiro Otsuka
Yoshiaki Nakazawa
Yoshiaki Nakazawa
Application Number:
JP2017509075A
Publication Date:
October 04, 2017
Filing Date:
September 14, 2016
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B21D22/26; B21D22/20; B21D47/00; B21D53/88
Domestic Patent References:
| JP2008201377A | ||||
| JP2010527407A | ||||
| JP3042126A | ||||
| JP2010149184A | ||||
| JP2013163209A |
Foreign References:
| WO2014084151A1 |
Attorney, Agent or Firm:
Ascend Patent Business Corporation
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