Thermo-elastic deformations of the workpiece when dry turning aluminum alloys - A finite element model to predict thermal effects in the workpiece

The workpiece is subjected to severe thermal loads when turning. These loads deforming the workpiece lead to a deviation between the actual and the nominal depth of cut. The accuracy of machining is thereby decreased. This paper presents a finite element technique to determine such thermal loads and deformations with regard to the cutting condition used and the actual tool position. The turning process can therefore be virtually optimized prior to actual turning in order to decrease thermally induced deformation of the workpiece.