Numerical Analysis And Experimental Investigation Of Residual Stress And Surface Roughness In Cylindrical Grinding Of Stainless-Steel 440c

Abstract

Machining Is A Finishing Technique In Which Work Pieces Are Produced To The Desired Dimensions And Surface Finish By Gradually Removing Extra Material From The Prepared Blank In The Form Of Chips With The Help Of Cutting Tool. Regression Models Were Conducted Using Full Factorial. Analysis Of Variance Was Used To Assess The Validity Of The Developed Model. Experiments Were Performed On A Cnc (Computer Numerical Control) Machine On Work Piece Of Stainless Steel (Aisi 440) Which Is Used In The Construction Of Bearings, Nozzles, Aircrafts, And Wear Parts Of Pumps, Mold Inserts, And Surgical Tools. The Findings Showed That Feed Rate Contributed 95% That It Was The Most Significant Parameter Affecting Surface Roughness. Minimum Surface Roughness Of 0.6??M Was Achieved At Lowest Value Of Cutting Parameters Speed Of And Maximum Surface Roughness Of 6.52??M Were Achieved At Highest Value Of Cutting Parameters. The Highest Temperature Of 60.929??C Was Observed For Higher Cutting Parameters And The Lowest Temperature (45.592 ??C) For Lower Cutting Parameters. An Optimization Problem Was Solved Using A Response Surface Methodology In Design Experiment 13. ByCarrying Out Response Optimization Process From Rsm Are Observed That Ra Of 0.343285?? MWhen The Material Grinded At 550rpm, 2mm/Min And Depth Of Cut Was 0.02mm. Simulation Was Done Using Ls-Dyna. An Optimum Value Observed From Simulation Are Optimum Temperature Value Is 47.5503c0 At Combination Of The Grinding Parameters Were At Work Piece Speed (Rpm)Of 550.01rpm, Feed Rate Of 0.012004 Mm/Min And Depth Of Cut Were At 0.0399856mm.Optimum Range Deformation Value Were 6.40611 Mm At Combination Of Grinding Parameters Were At Work Piece Speed Of 550.126rpm, Feed Rate Of 0.06846mm/Min And Depth Of Cut Were At 0.02mm. Optimum Equivalent Stress Value Were 1068.58 Mpa At Combination Of Grinding Parameters Were At Work Piece Speed Of 550.001rpm, Feed Rate Of 0.1125mm/Min And Depth Of Cut Were At 0.0397mm. D-Spacing Calculated By Using Data From Xrd On Origin Software. Micro-Strain Was Calculated And Residual Stress Was Calculated Based On Hooks Law.