A study of plastic strain and plastic strain rate in machining of steel AISI 1045 using FEM analysis

The present paper employs the finite element method to determine the plastic strain and plastic strain rate when machining an AISI 1045 steel. A validation of the process using literature experimental values was also conducted in order to verify if the obtained results with the commercial finite element software were close to those found within the literary research. The comparison shows that finite element modulation can be used to determine either plastic strain or plastic strain rate if special attention is taken into consideration when using the analytical models. The effect of high speed machining (HSM) in the plastic strain and plastic strain rate when cutting steel AISI 1045 was observed. From the simulations, it can be concluded that both the plastic strain and plastic strain rate can be predicted with good precision when machining with the FEM model. (C) 2008 Elsevier Ltd. All rights reserved.