The Influence Of Sequential Cuts In Orthogonal Cutting Of An Austenitic Stainless Steel.

In this paper an orthogonal machining model of AISI 316L was developed using a specific code (DEFORM2DTMv.9.1). The development of accurate numerical models of machining depends not only in the adequate statement of material constants and friction. It is also important to reproduce the machining process conditions, like coolant use or sequential cuts. In turning tests, typically used to validate FE orthogonal machining simulations, the main cutting edge cuts the machined surface generated in the previous revolution of the lathe. The aim of this work is to analyse the influence of sequential cuts when machining AISI 316L. The model was validated and optimized with experimental results obtained from orthogonal dry cutting tests performed on AISI 316L tubes, with variable feeds and cutting speed. The cutting and thrust force components were measured and compared with predicted values, showing good accuracy of the model. Moreover, residual stresses were measured with X-ray diffraction technique and compared with numerical results. [ABSTRACT FROM AUTHOR]