Investigation of Drillability for Ferritic Stainless Steel with Uncoated Carbide Drill
AbstractInvestigations on cutting force, surface quality and dimension accuracy etc. are ongoing considering the feed rate and cutting speed despite the development of new drill qualities in terms of the material and geometry in drilling. In this study, the drillability of AISI 430 ferritic stainless steel used in many industrial environments such as automobile chassis parts, hot water tanks, kitchen utensils and decorative applications was investigated. The effects on thrust force, torque and surface quality of cutting speed and feed rate was evaluated in the drilling of workpiece prepared in sheet form. Experiments were performed with three different cutting speeds and feed rate with the uncoated carbide drill bit. Variance analysis was applied to determine the effect levels of the drilling parameters on the machining outputs. According to the experimental results, it was determined that as the feed rate increases, thrust force, torque and surface roughness increases. On the other hand, it has been observed that as the cutting speed increases, the machining outputs tends to decrease.