Optimization of DEFORM-3D simulated drilling of UNSS31603-steel by integrated MOORA coupled PCA technique

Abstract

Due to its creep and stress-rapture strengths, superior formability, and high temperature tensile, UNS S31603 alloys are regarded as a good machinability material. As a result of the increased heat and thrust force generated by the cutting process, increased tool wear and damage are an inevitable byproduct of increased cutting speed and feed rate at the cutting edge. Drilling parameters are the only variable that can be changed to affect the temperature, and hence the wear and tear on the drill bit. In this inquiry, a 3D FEM has been proposed to study the drilling process simulation of UNS S31603 to reduce the drilling temperature, thrust force and drilling time. With DEFORM, a computer simulation model has been run to examine temperature changes as a function of cutting speed and feed rate. This study found that raising either the feed rate or the cutting speed resulted in a corresponding rise in temperature. With the aid of the unique optimization approach, integrated MOORA coupled PCA, the input process variables have been optimized. From the optimization, the optimized input parameters were identified as 260 rpm speed, 1.2 mm/min feed rate and the drill point angle of 90 degrees in order to achieve the minimum cutting force of 312 N and minimum temperature of 540 °C. At long last, optimal findings have been obtained that can assist cut down on the excessive development of heat, thrust force, and drilling time.