OPTIMIZATION OF MULTI-PROCESS PARAMETERS ACCORDING TO THE SURFACE QUALITY CRITERIA IN THE END MILLING OF THE AA6013 ALUMINUM ALLOY

摘要

In the study the effects of multi-process parameters on the surface roughness during the machining of the AA6013 aluminum alloy with non-coated cemented carbide milling cutters were investigated by using Taguchi's experimental design method. Experiments were conducted on the basis of Taguchi's L16 orthogonal array (OA) at different levels of the factors relating to the aging process, the cutting speed, the feed rate, the axial depth of a cut and the radial depth of a cut; then they were evaluated through the signaloise ratio (S/N), ANOVA and the main effects' graphic. Accordingly, the lowest surface roughness was estimated to be 0.436 μm and, finally, Taguchi's method allowed the optimization of the system for the verification of the tests.