Abstract
Abstract In order to improve the machinability of titanium alloys, a better understanding of the chip formation process is needed. Microstructur alanalysis of chips produced at high cutting speeds can lead to an estimate of temperatures and the deformation state in the chips if structural changes can be observed. Two-dimensional cross-sectional analyses are performed by means of optical microscopy (LM) and transmission electron microscopy (TEM). To study the deformation state of the finished workpiece, a scratch-grid method in combination with a scanning electron microscope (SEM) is used. The results of the different analyses for Ti 6A14V are presented in this paper and are compared with a finite element simulation of an orthogonal cutting process.
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