Numerical modelling of ti6A14V machining : a combinded FEA and unified mechanics of cutting approach

[摘要] ENGLISH ABSTRACT: In this study, Ti6Al4V machining is modelled using finite element analysis of orthogonalmachining. Orthogonal turning tests are conducted for the verification of FE modelsin terms of machining forces, temperatures, and chip geometry. Milling force predictionsare made using the unified mechanics of cutting model which is applied toball nose milling for this study. The model makes use of orthogonal cutting data, collectedfrom the turning tests, to model milling forces. Model predictions are comparedwith test data from slot milling tests for verification. Finally a hybrid form of the 'unified'model is presented in which orthogonal data, obtained from the FE simulations,is used to model ball nose milling operations.

[发布机构] Stellenbosch University