Tool flank wear analyses on martensitic stainless steel by turning
Wybrane pełne teksty z tego czasopisma
Purpose: Purpose of this research was to demonstrate tool wear by hard turning of martensitic stainless steel and this material is pronounced as difficult to machine material. The evaluation was done using CBN cutting tool on SS 440 C stainless steel with hardness between 45 to 55 HRC. Design/methodology/approach: Turning parameters like cutting speed, feed rate and depth of cut was used. The turning was carried out dry process. Findings: The flank wear was caused by abrasive action between cutting tool and work piece. The heat generated between work piece and tool tip help to form built up edge. The generated heat was conducted easily due to low thermal conductivity of the work piece material. At low cutting speed of 125 m / min with high feed rate of 0.125 mm / rev and 1.00 mm DOC. Research limitations/implications: It was difficult to decide the operating parameters due to physical and chemical properties of the material. Operating at high cutting speed would result in tool flank wear, surface damage and other wears. Originality/value: The originality of this paper lies with conducting experiment and finding optimum operating parameters. The other researches can have as reference.
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