Experimental Investigation and Mathematical Modeling of Composite Ceramic Cutting Tools with Alumina Base in the Machining Process of PH-hardened Austenitic-ferritic (Duplex) Stainless Steel

The tool life of a cutting tool is an important critical factor in evaluating its performance. The amount of tool abrasion seriously affects the dimensions and surface quality of the working piece so that one of the main factors determining the tool life of a tool is the degree of wear. For this purpose, an abrasion standard is defined for each particular tool above which the tool is no longer applicable. In this paper, studies are concentrated on the machining of PH-hardened Austenitic-ferritic (Duplex) stainless steel (330HRC) to analyze the effect of tool wear on the tool life of the ceramic cutting tool with Alumina base (aluminium oxide). The abrasion tool parameters like flank wear, crater wear, and notch wear have been addressed. To develop the mathematical models for the parameters studied in tool wear, the experimental results are applied in a multi-regression analysis (MRA) and the results obtained by these models are studied and analyzed by analysis of variance (ANOVA).