Wear behaviour of Al₂O₃/Ti(C,N) ceramic tool during turning process of martensitic stainless steel

Abstract

In this paper, we prepared an Al₂O₃/Ti(C,N) ceramic tool with main components of Al₂O₃ (41%), TiN (33%) and TiC (17%), and studied its cutting characteristics of continuous turning 1Cr13 martensitic stainless steel, the cutting performance of Al₂O₃/Ti(C,N) ceramic tool and 1Cr13 workpiece surface roughness were analysed in different cutting speeds. In cutting speed 260 m min⁻¹, cutting depth 0·1 mm, cutting feed 0·1 mm r⁻¹, the tool gets the best tool life, and ensures a good surface quality. The scanning electron microscope and energy dispersive spectroscopy analysis of Al₂O₃/Ti(C,N) ceramic tool is performed after cutting, and the wear mechanism of tool is abrasive wear and adhesive wear in high cutting speed.

Keywords:

• Ceramic tool
• Martensitic stainless steel
• Turning process
• Cutting performance
• Wear mechanism

Acknowledgements

This work was supported by National Natural Science Foundation of China (no. 51405513), Science and Technology Plan Project of Qingdao (14-2-4-75-jch), The Fundamental Research Funds for the Central Universities (14CX02072A) and Scientific Research Foundation Funded Project of China University of Petroleum (Y1203044).