Flow Stress of 6061 Aluminum Alloy at Typical Temperatures during Friction Stir Welding Based on Hot Compression Tests

The purpose of this paper is to report quantitative data and models for the flow stress computer simulation friction stir welding (FSW). In paper, stresses commercial 6061 aluminum alloy at typical temperatures in FSW are investigated quantitatively by using hot compression tests. during determined reviewing literature data. measured stress, strain rate temperature tests fitted a Sellars–Tegart equation. An artificial neural network trained implement an accurate model predicting as function rate. Two models, i.e., equation network, compared. It found that root-mean-squared error (RMSE) between predicted values be 3.43 MPa based on 1.68 network. indicated has better flexibility than FSW.