Effect of the external turnings process on surface roughness of steel37

Abstract

Surface roughness plays an important role in product quality and one of the most specified customer requirements, the smoothness and quality of good soft surfaces be friction between moving parts and not the least important screen breakdown of the metal and this leads to longevity of parts, machinery, this results in a decrease in costs and therefore higher degree it's enclosed surfaces roughness is of great importance in the world of industry, and in this paper. There are many parameters such as cutting speed, feed rate and depth of cut that are known to have a large impact on surface quality. We study this important (surface roughness) turning machine is used where programmed (CNC) of iron alloy st37 via three operating factors cutting speed, feed rate and depth of cut, variable values with other factors is constant in all experiments as the cooling process and insert type. By using MINITAB16 and Taguchi method to find number of experiments and use some mathematical equations and Statistical Analysis. shows that feed rate and depth of cut was a major effect the less value improved degree of surface roughness and cutting speed has less effect but whenever increase value improved degree Surface roughness, and we find optimal process conditions as cutting speed 300rpm,feed rate 0.1mm/rev, depth of cut 0.25mm.