Title:
管状部品のプレス成形方法及びこれに用いられるプレス成形金型
Document Type and Number:
Japanese Patent JP7021838
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a press molding method that enables molding of a modified cross-section tubular component.SOLUTION: A press molding method for a different-diameter cross-section tubular component 1 includes: a U-bending step of molding a bottom 11 and a pair of vertical wall parts 12 that are raised from both ends of the bottom 11; an intermediate bending step of molding a bent part 12a in each of the vertical wall parts 12 by making ends 12f of the pair of vertical wall parts 12 butt against a locking part 21b provided in an intermediate bending molding 20 and pressing them; and a final bending step of molding the tubular component 1 by making the ends 12f of the pair of vertical wall parts 12 butt against each other.SELECTED DRAWING: Figure 1
Inventors:
Masahiko Fukushima
Takashi Fujii
Masaru Takumi
Takashi Fujii
Masaru Takumi
Application Number:
JP2017061287A
Publication Date:
February 17, 2022
Filing Date:
March 27, 2017
Export Citation:
Assignee:
Daihatsu Motor Co., Ltd.
International Classes:
B21D5/01
Domestic Patent References:
| JP2014004626A | ||||
| JP2001191112A | ||||
| JP57165120A | ||||
| JP53018457A | ||||
| JP2009513354A |
Foreign References:
| EP2939849A1 | ||||
| WO2016136259A1 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Yusuke Noguchi
Tsuyoshi Kumano
Yusuke Noguchi
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