Title:
摩擦撹拌接合工具
Document Type and Number:
Japanese Patent JP7152119
Kind Code:
B2
Abstract:
The disclosure provides a friction stir welding tool which can inhibit chipping even if an adhesion matter having high hardness adheres to a tip thereof during friction stir welding of an iron-base alloy and an aluminum alloy. In the tool for friction stir welding made of high-speed tool steel that includes a minor diameter portion and a major diameter portion formed adjacently to the minor diameter portion, hardness of the tool decreases from the minor diameter portion toward the major diameter portion. The hardness of the minor diameter portion may be 65 HRC or more by Rockwell hardness C-scale, and the hardness of the major diameter portion may be 60 HRC or less by Rockwell hardness C-scale.
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Inventors:
Nobuyuki Funahira
Takuya Miyamoto
Ryo Kawahara
Akiyoshi Miyawaki
Sayama Mitsuru
Kasuke Tsuta
Yasumasa Hyodo
Takuya Miyamoto
Ryo Kawahara
Akiyoshi Miyawaki
Sayama Mitsuru
Kasuke Tsuta
Yasumasa Hyodo
Application Number:
JP2019070980A
Publication Date:
October 12, 2022
Filing Date:
April 03, 2019
Export Citation:
Assignee:
Fujikoshi Co., Ltd.
Honda motor industry stock company
Honda motor industry stock company
International Classes:
B23K20/12; C22C38/00; C22C38/30
Domestic Patent References:
| JP2016503347A | ||||
| JP2009538230A | ||||
| JP2010260065A | ||||
| JP2000153374A |
Attorney, Agent or Firm:
Umemoto Kosaku
Akiko Okajima
Akiko Okajima
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