Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 空间自动化技术研究室

	Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy
	Zhang HJ(张会杰); Wang M(王敏); Zhang X(张骁); Zhu Z(朱智); Yu T(于涛); Yang GX(杨广新)
刊名	METALS
	2016
卷号	6 期号:4
关键词	friction stir lap welding aluminum alloy welding speed defect feature mechanical performance
ISSN号	2075-4701
通讯作者	张会杰
产权排序	1
中文摘要	Friction stir lap welding of 7B04 aluminum alloy was conducted in the present paper, and the effect of welding speed on the defect features and mechanical performance of lap joints was investigated. The results indicate that the hook defect at the advancing side (AS) can reduce the effective thickness of the top sheet, and the sheet thinning level is gradually lowered by increasing the welding speed. The cold lap defect at the retreating side (RS) can result in effective thickness reduction in both top and bottom sheets, and the total height of the cold lap defect varies slightly with the welding speed. The tensile properties of the lap joints are largely related to the sheet thinning levels caused by the defects. The fracture strength of AS-loaded lap joints is progressively increased with increasing welding speed, while that of RS-loaded lap joints evolves slightly with welding speed. It is found that the affecting characteristic of loading configuration on the joint performance is also dependent on the welding speed. At lower welding speeds, the AS-loaded lap joints show lower fracture strength than the RS-loaded lap joints. When the welding speed is high, the AS-loaded lap joints present superior tensile properties to RS-loaded lap joints.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	JOINT PROPERTIES ; STRENGTH
收录类别	SCI
语种	英语
WOS记录号	WOS:000375861100017
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/18664]
专题	沈阳自动化研究所_空间自动化技术研究室
推荐引用方式 GB/T 7714	Zhang HJ,Wang M,Zhang X,et al. Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy[J]. METALS,2016,6(4).
APA	Zhang HJ,Wang M,Zhang X,Zhu Z,Yu T,&Yang GX.(2016).Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy.METALS,6(4).
MLA	Zhang HJ,et al."Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy".METALS 6.4(2016).