Title:
熱間プレス加工方法及び加工装置
Document Type and Number:
Japanese Patent JP7087568
Kind Code:
B2
Abstract:
To provide a press-formed product 4 in which workpieces 2 and 3 are at least partly superposed on each other and are engaged with each other so as not to cause positional displacement.SOLUTION: A first workpiece 2 having an engaging part 5 is fitted to a lower die 12. A heated second workpiece 3 having a flat-plate shape is positioned on the first workpiece 2. By a pressing step of lowering an upper die 11, there is obtained a press-formed product 4 in which the first workpiece 2 and the second workpiece 3 are superposed on each other. In the pressing step, a portion in the second workpiece 3 corresponding to the engaging part 5 of the first workpiece 2 is plastically deformed to be engaged with the engaging part 5.SELECTED DRAWING: Figure 3
Inventors:
Naoyuki Irie
Ichiro Ino
Yoshihide Hirao
Kei Okawa
Ichiro Ino
Yoshihide Hirao
Kei Okawa
Application Number:
JP2018066487A
Publication Date:
June 21, 2022
Filing Date:
March 30, 2018
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
B21D22/02; B21D43/00; B21D22/20; B21D22/26; B21D24/00; B21D37/16; B21D53/88
Domestic Patent References:
| JP2006321405A | ||||
| JP2018012115A | ||||
| JP2013128955A |
Foreign References:
| KR1020130125645A |
Attorney, Agent or Firm:
Maeda patent office