Duplex stainless steel is an important part of metal cutting in many different industries; this research aims to examine the variables that affect tool wear and life when turning this material. The study is centered on wear processes including abrasion, adhesion, and diffusion, with the goal of enhancing tool design and machining efficiency. The research aims to fill gaps in understanding and give solutions for better tool design. The findings are expected to significantly advance metal cutting technology, particularly for duplex stainless steel, which requires an exceptionally high level of corrosion resistance and mechanical properties. A comparison was made between the two tool points' wear results and the flank wear breadth as a function of the tool point's constant-state wear. We did this to find out how the two were related. Various processes, such as abrasive wear and adhesive wear, have been recorded in the past. Tools coated with Al2O3 had a longer tool life and higher resistance to abrasive wear when machining without a cooling lubricant was done. Furthermore, the tool's lifespan was increased. The scanning electron microscopy (SEM) has been used to examine the wear.

Work piece, Stainless steel, Tool life, Machining, Surface Roughness.