Residual Stress Modeling in Orthogonal Machining

✍ Scribed by S.Y. Liang; J.-C. Su

• Book ID: 104011258
• Publisher: International Academy for Production Engineering
• Year: 2007
• Tongue: English
• Weight: 194 KB
• Volume: 56
• Category: Article
• ISSN: 0007-8506
• DOI: 10.1016/j.cirp.2007.05.018

✦ Synopsis

A predictive model for residual stresses in orthogonal cutting is presented. It uses process conditions as inputs and predicts surface and sub-surface residual stress profiles due to machining. The model formulation incorporates cutting force and cutting temperature predictions and utilizes those parameters to define the thermo-mechanical loading experienced by the workpiece. The stresses at the cutter edge hone and in the shear plane are considered in a rolling/sliding contact algorithm which admits kinematic hardening for nonproportional plasticity with subsequent stress relaxation to meet boundary conditions. Model predictions are compared to experimentally-measured residual stresses under various cutting conditions for validation.