Effect of cutting speed parameters on the surface roughness of Al5083 due to recrystallization

Abstract. In the present study, the effect of machining parameters and recrystallization on surface quality of Al5083 has been investigated. In order to achieve minimum surface roughness of aluminum 5083 samples, statistical test design method of "full factorial" was used. In order to achieve the phenomenon of recrystallization, aluminum 5083 samples were set under 50 % cold rolling mechanical operations. Then, the rolled samples were annealed for 2.5 to 240 min at 250 °C. The stress-strain curves were obtained from tensile tests. Then, dry machining was carried out on the original and crystallized samples under the same conditions. Results of surface roughness, tensile, and microstructure tests indicated the reduction of surface roughness in the crystallized sample.