Prediction of residual stress regeneration in multi-pass milling. Issue 5 (March 2016)

• Record Type: Journal Article
• Authors: Fergani, Omar; Jiang, Xiaohui; Shao, Yamin; Welo, Torgeir; Yang, Jianguo; Liang, Steven
• Is Part Of: International journal of advanced manufacturing technology. Volume 83:Issue 5/8(2016)
• Page Start: 1153
• Page End: 1160
• Publication Date: 2016-03
• Subjects: Residual stress -- Machining -- Regeneration -- Milling; Manufacturing processes -- Periodicals; Production engineering -- Periodicals; 670.427
• DOI: 10.1007/s00170-015-7464-9
• Languages: English
• ISSNs: 0268-3768

Abstract

Abstract Machining-induced residual stress is important for the part performance. In the literature, various predictive models have been proposed for residual stress in one-pass machining without considering the multi-pass aspect. This study describes the regeneration of residual stress in multi-pass machining with thermo-mechanical loadings, in the full elasto-plastic state, captured using the Neumann-Duhamel principle. The residual stress is then analysed satisfying elastic-plastic relaxation in-between layers and at the boundaries. Large experimental data in milling of AA2121-T3 agreed well with model predictions, thus supporting the consideration of initial stress functions, materials cyclic plasticity and compatibility to allow for residual stress prediction in multi-pass machining.