Material-flow behavior during friction-stir welding of 6082-T6 aluminum alloy

被引：51

作者：

Huang, Yongxian ^{[1
,2
]}

Wang, Yaobin ^{[1
]}

Wan, Long ^{[1
]}

Liu, Haoshu ^{[1
]}

Shen, Junjun ^{[2
]}

dos Santos, Jorge F. ^{[2
]}

Zhou, Li ^{[1
,3
]}

Feng, Jicai ^{[1
,3
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

[2] Helmholtz Zentrum Geesthacht, Inst Mat Res, D-21502 Geesthacht, Germany

[3] Harbin Inst Technol Weihai, Shandong Prov Key Lab Special Welding Technol, Weihai 264209, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2016年 / 87卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

Friction-stir welding; Aluminum alloy; Marker material; Material-flow behavior; Welding nugget zone; PROCESS PARAMETERS; PLASTIC-FLOW; TOOL; MICROSTRUCTURE; GEOMETRY; PROFILE; JOINT; ZONE;

D O I：

10.1007/s00170-016-8603-7

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Material-flow behavior during friction-stir welding of 6082-T6 aluminum alloy has been visualized by marker insert technique. Four stacked layers were evolved in welding nugget zone (WNZ) in the transverse section. The material-flow behavior in vertical direction was detected by observing the distribution of Cu foil fragments and Al-Cu intermetallic compounds. The downward and upward flows encounter each other at the advancing side in the material depositing process, changing the morphology of WNZ. A conceptual balanced-flow model and a plastic material-flow model were used to describe the material-flow behavior, and the origin of the downward material flow in the advancing side was discussed. The excess-material flow derived by the welding tool due to the existence of the tilt angle is crucial to the weld formation.

引用

页码：1115 / 1123

页数：9

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