TORSION BEAM MANUFACTURING METHOD AND TORSION BEAM MANUFACTURING DEVICE

Title:

TORSION BEAM MANUFACTURING METHOD AND TORSION BEAM MANUFACTURING DEVICE

Document Type and Number:

WIPO Patent Application WO/2019/069631

Kind Code:

A1

Abstract:

This torsion beam manufacturing method is for manufacturing a torsion beam provided with: a central part in which a cross-section orthogonal to the longitudinal direction is a closed cross-section of a roughly V or U shape at an arbitrarily defined position in the longitudinal direction; and a shape change part which is connected to the central part and has a connection region having a closed cross-section shaped differently from that of said closed cross-section. This torsion beam manufacturing method has a compression step for making the torsion beam by increasing the thickness of at least the connection region through application of a compression force in the longitudinal direction with respect to at least the connection region in the torsion beam material in which the central part and the shape change part have been formed.

Inventors:

SATO MASAHIKO (JP)
MIZUMURA MASAAKI (JP)

Application Number:

PCT/JP2018/033407

Publication Date:

April 11, 2019

Filing Date:

September 10, 2018

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B21D22/02; B21D53/86; B60G9/04

Domestic Patent References:

WO2010114173A1	2010-10-07
WO2012081454A1	2012-06-21
WO2015133464A1	2015-09-11
WO2017155056A1	2017-09-14
WO2017169733A1	2017-10-05

Foreign References:

JP2009509774A	2009-03-12
JP2005034900A	2005-02-10
JP5383382B2	2014-01-08
JP6296211B2	2018-03-20
JP6213705B1	2017-10-18
JP2017194394A	2017-10-26
JP2018056868A	2018-04-05
JP2011000635A	2011-01-06
JP2001123227A	2001-05-08
JP2008063656A	2008-03-21
JP2013091433A	2013-05-16

Other References: