Refill friction stir spot welding of surface-treated aerospace aluminum alloys with faying-surface sealant

被引：37

作者：

Boldsaikhan, Enkhsaikhan ^{[1
]}

Fukada, Shintaro ^{[2
]}

Fujimoto, Mitsuo ^{[2
]}

Kamimuki, Kenichi ^{[3
]}

Okada, Hideki ^{[3
]}

机构：

[1] Wichita State Univ, Wichita, KS 67260 USA

[2] Kawasaki Heavy Ind Co Ltd, Corp Technol Div, Tokyo, Japan

[3] Kawasaki Heavy Ind Co Ltd, Aerosp Div, Tokyo, Japan

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2019年 / 42卷

关键词：

Refill friction stir spot welding; Refill friction stir spot joining; Aerospace aluminum alloy; Robotic spot welding; Aerospace manufacturing; Surface treatment; Sealant; MECHANICAL-PROPERTIES; MICROSTRUCTURE;

D O I：

10.1016/j.jmapro.2019.04.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Refill friction stir spot welding (RFSSW) is a derivative of friction stir spot welding (FSSW). Unlike conventional FSSW, it does not leave behind an exit hole in the workpiece. Kawasaki Heavy Industries (KHI) developed a novel robotic RFSSW system for aerospace applications. To date, researchers documented numerous studies on refill friction stir spot welding of bare aerospace aluminum alloys. This study explores further and demonstrates refill friction stir spot welding of surface-treated dissimilar aluminum alloys with a faying-surface sealant. Surface treatments are vital for corrosion inhibition and paint adhesion of aircraft structures. An ability to join metals with surface treatments is an enabler in implementing the RFSSW technology in aerospace applications. The presented study features the welding process development, mechanical tests, and comparisons between bare and surface-treated RFSSW coupons.

引用

页码：113 / 120

页数：8

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