Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 105, Issue 1-4, Pages 565-577Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-019-04219-7
Keywords
Milling temperature; Residual stress; Analytical model; Complex surface milling
Funding
- National Key Basic Research Program of China [2014CB046704]
- Key Projects in the National Science Technology Pillar Program of China [2014BAB13B01]
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The distribution of residual stresses has a significant effect on fatigue life in milling process. In previous works, the predicted model of residual stresses was focusing on orthogonal cutting, while milling residual stresses is seldom reported. An analytical model for the generation of residual stresses induced by complex surface milling is proposed. Estimates of the mechanical stresses induced by the milling process have been determined through contact mechanics and the geometric transformations within the part. The temperature field of workpiece induced by milling is predicted by analytical model. Estimates of the residual stresses were obtained using an elastic-plastic model and a relaxation procedure. The proposed model is validated with milling experiments. This work can be further applied to improve surface integrity of workpieces by machining parameters optimization.
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