Stainless steel (SS) is used for many commercial and industrial applications owing to its high resistance to corrosion. It is too hard to machine due to its high strength and high work hardening property. A surface property such as surface roughness (SR) is critical to the function-ability of machined components. Stainless steel is generally regarded as more difficult to machine material and poor SR is obtained during machining. In this paper an attempt has been made to investigate the SR produced by CNC turning on austenitic stainless steel (AISI316) and martensitic stainless steel (AISI410) by different cases of coated cutting tool used at dry conditions. Multi-layered coated with TiCN/Al2O3, multi-layered coated with Ti(C, N, B) and single layered coated with TiAlN coated cutting tools are using. Experiments were carrying out by using Taguchi’s L27 orthogonal array. The effect of cutting parameters on SR is evaluated and optimum cutting conditions for minimizing the SR are determined. Analysis of variance (ANOVA) is used for identifying the significant parameters affecting the responses. Confirmation experiments are conduct to validate the results obtaining from optimization.
CNC turning, AISI316, AISI410, Surface roughness, Taguchi’s Techniques, ANOVA.
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