Title:
プレス成形金型及びその製造方法
Document Type and Number:
Japanese Patent JP7117065
Kind Code:
B2
Abstract:
To enhance material yield in press molding.SOLUTION: The press-molding die comprises a die 10 and a blank holder 20 having pressing surfaces 11 and 21 for gripping an end part of a blank material W and a punch 30 having a molding surface 31. In the pressing surface 11 of the die 10 and in the pressing surface 21 of the blank holder 20 are provided a number of microspikes 12 and 22 which point-contact the blank material W.SELECTED DRAWING: Figure 5
Inventors:
Mamoru Yamana
Satoru Kawafune
Satoru Kawafune
Application Number:
JP2018222377A
Publication Date:
August 12, 2022
Filing Date:
November 28, 2018
Export Citation:
Assignee:
Daihatsu Motor Co., Ltd.
International Classes:
B21D24/04; B21D37/20
Domestic Patent References:
| JP48104825U | ||||
| JP2012210642A | ||||
| JP62202911U | ||||
| JP2002172432A |
Foreign References:
| WO2017169211A1 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Yusuke Noguchi
Tsuyoshi Kumano
Yusuke Noguchi