Published in Journal of Industrial Engineering and Robotics, Volume 6, Number 3
Written by DINCĂ Cristian-Daniel, FRANCISC Petre, GHICULESCU Liviu Daniel
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The paper deals with the comparison of machining alloys based on Co, Cr and Ti, Al between mechanical processes, like milling and nonconventional thermal processes, like electrical discharge machining (EDM). The studied materials have great characteristics of resistance, corrosion, some like Co, Cr alloys are biocompatible, and some others like Ti, Al alloys have high resistance at big temperature. Generally, they are difficult to be cut, therefore EDM was used at cavity machining in comparison and combination with milling. Finally, a finite element modelling of EDM process was approached to better understand the thermal removal mechanism of these materials. Experimental data proved that CoCr alloys have higher machinability than Ti, Al alloys at both types of processes used.

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