Investigation of the in?uential parameters of machining of AISI 304 stainless steel

摘要

Austenitic stainless steels are hard materials to machine, due to their high strength, high ductility and low thermal conductivity. The last characteristic results in heat concentration at the tool cutting edge. This paper aims to optimize turning parameters of AISI 304 stainless steel. Turning tests have been performed in three different feed rates (0.2, 0.3, 0.4 mm/rev) at the cutting speeds of 100, 125, 150, 175 and 200 m/min with and without cutting ?uid. A design of experiments (DOE) and an analysis of variance (ANOVA) have been made to determine the effects of each parameter on the tool wear and the surface roughness. It is being inferred that cutting speed has the main in?uence on the ?ank wear and as it increases to 175 m/min, the ?ank wear decreases. The feed rate has the most important in?uence on the surface roughness and as it decreases, the surface roughness also decreases. Also, the application of cutting ?uid results in longer tool life and better surface ?nish.