OPTIMIZATION OF MACHINING PARAMETERS DURING CNC MILLING OF INCOLOY 800
Keywords:Incoloy 800, Titanium Coated Cryogenic Treated Tungsten Carbide Insert, RSM, Multi Response Optimization, Milling.
Maintaining better surface quality generally includes additional production cost or loss of productivity. During the process high cutting frictional forces lead to rise in temperature at workpiece and tool interface which may affect the dimensional and surface quality of the product. Optimum machining parameters can reduce tool wear, to ensure better surface integrity and machining cost. In this paper, the machining parameters i.e. cutting speed (Vc), depth of cut (d) and feed rate (f) has been optimized for improved surface finish using response surface methodology (RSM). The optimization of the surface roughness (Ra) and tool wear (Tw) has been done simultaneously by multi response optimization technique and also a mathematical relation between response parameters and input process variables has been developed. The optimized process parameters obtained from machining through RSM were Vc is 2454.95 rpm, f is 437.05 mm/min and d is 0.20 mm, corresponding Ra and Tw were 0.55 µm, 143.84 µm respectively