Title:
METHOD AND DEVICE FOR FRICTION STIR BONDING OF STRUCTURAL STEEL
Document Type and Number:
WIPO Patent Application WO/2017/169991
Kind Code:
A1
Abstract:
Provided are a method and device to effectively eliminate plastic flow defects caused by inadequate heating of materials to be assembled, to ensure adequate strength and to facilitate bonding work. When friction stir bonding steel sheets (3, 3) which are the materials to be assembled, a pair of rotary tools (1, 15) that face one another are inserted into the unbonded section from both one side and the other side of the steel sheets (3, 3) and moved in the bonding direction while being rotated, a heating means (5) provided in front of the rotary tools (1, 15) is used to perform a preheating process of heating the steel sheets (3, 3), and the configuration of the pair of rotary tools (1, 15) that face one another in addition to the surface temperature, surface area, and position and the like of the heating region in the preheating process, are rigorously controlled.
Inventors:
MATSUSHITA MUNEO (JP)
IKEDA RINSEI (JP)
TANIGUCHI KOICHI (JP)
IKEDA RINSEI (JP)
TANIGUCHI KOICHI (JP)
Application Number:
PCT/JP2017/011286
Publication Date:
October 05, 2017
Filing Date:
March 22, 2017
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K20/12; B23K103/04
Domestic Patent References:
| WO2015045299A1 | 2015-04-02 | |||
| WO2011024320A1 | 2011-03-03 | |||
| WO2015198910A1 | 2015-12-30 | |||
| WO2016147668A1 | 2016-09-22 | |||
| WO2015045299A1 | 2015-04-02 |
Foreign References:
| JPS62183979A | 1987-08-12 | |||
| JPH07505090A | 1995-06-08 | |||
| JP2003532542A | 2003-11-05 | |||
| JP2003032543A | 2003-01-31 | |||
| JP2003094175A | 2003-04-02 | |||
| JP2005288474A | 2005-10-20 | |||
| JP3261433B2 | 2002-03-04 | |||
| JPS4838385B1 | 1973-11-16 |
Other References:
See also references of EP 3437781A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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