The optimization of friction spot welding process parameters in AA6181-T4 and Ti6Al4V dissimilar joints

被引：60

作者：

Plaine, A. H. ^{[1
,2
]}

Gonzalez, A. R. ^{[3
]}

Suhuddin, U. F. H. ^{[1
]}

dos Santos, J. F.

Alcantara, N. G. ^{[2
]}

机构：

[1] Helmholtz Zentrum Geesthacht, Inst Mat Res, Mat Mech, Solid State Joining Proc, Geesthacht, Germany

[2] Univ Fed Sao Carlos, Dept Mat Engn, BR-13560 Sao Carlos, SP, Brazil

[3] Univ Fed Rio Grande do Sul, Dept Mech Engn, Porto Alegre, RS, Brazil

来源：

MATERIALS & DESIGN | 2015年 / 83卷

基金：

巴西圣保罗研究基金会;

关键词：

Friction spot welding; Aluminum alloy; Titanium alloy; Dissimilar joint; Design of experiments; Response of surface methodology; MECHANICAL-PROPERTIES; AL-ALLOY; ALUMINUM; MICROSTRUCTURE; TITANIUM; INTERLAYER; DIFFUSION; STRENGTH;

D O I：

10.1016/j.matdes.2015.05.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Friction spot welding is a relatively new solid-state joining process able to produce overlap joints between similar and dissimilar materials. In this study, the effect of the process parameters on the lap shear strength of AA6181-T4/Ti6Al4V single joints was investigated using full-factorial design of experiment and analyses of variance. Sound joints with lap shear strength from 4769 N to 6449 N were achieved and the influence of the main process parameters on joint performance was evaluated. Tool rotational speed was the parameter with the largest influence on the joint shear resistance, followed by its interaction with dwell time. Based on the experimental results following response surface methodology, a mathematical model to predict lap shear strength was developed using a second order polynomial function. The initial prediction results indicated that the established model could adequately estimate joint strength within the range of welding parameters being used. The model was then used to optimize welding parameters in order satisfy engineering demands. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：36 / 41

页数：6

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