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Title:
METHOD FOR MANUFACTURING HOLLOW BENT MEMBER AND DEVICE FOR MANUFACTURING HOLLOW BENT MEMBER
Document Type and Number:
WIPO Patent Application WO/2022/208744
Kind Code:
A1
Abstract:
According to the present invention, when performing shearing at a plurality of locations in the longitudinal direction of a hollow raw material, shearing is performed at a bending position among the plurality of locations after causing a heating device and a cooling device to tilt in a first direction based on a reference direction orthogonal to the longitudinal direction, and shearing is performed in a direction different from that of said bending position at a bending position to be processed later than said bending position among the plurality of locations after causing the heating device and the cooling device to tilt in a second direction different from the first direction based on the reference direction.

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Inventors:
TOMIZAWA ATSUSHI (JP)
UEMATSU KAZUO (JP)
Application Number:
PCT/JP2021/013878
Publication Date:
October 06, 2022
Filing Date:
March 31, 2021
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21D7/16; B21D7/00
Domestic Patent References:
WO2012108282A12012-08-16
Foreign References:
JP2021016891A2021-02-15
JP2010131649A2010-06-17
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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