Machining performance evaluation and tool wear analysis of dry cutting austenitic stainless steel with variable-length restricted contact tools

作者：Pang, Xueqin; Zhang, Baoyu; Li, Songqing; Zeng, Yuning; Liu, Xiao; Shen, Pengyu; Li, Zizhao; Deng, Wenjun^*

来源：Wear, 2022, 504: 204423.

DOI：10.1016/j.wear.2022.204423

• Rake surface restricted contact tool
• Inconstant tool-chip contact surface
• Machining performance
• AISI 316L austenitic Stainless steel

Austenitic stainless steel during machining still faces several challenges in terms of poor machinability and severe tool wear. In this work, different rake surface restricted contact tools with an inconstant tool-chip contact length are designed and fabricated. An in-depth investigation is then performed to comprehend the influence of the variable-length restricted contact tools on the machining performance and tool wear during dry cutting of AISI 316L austenitic stainless steel. The results indicate that considerable improvements in tribological properties and tool life are achieved with the developed tools. The cutting force, cutting temperature, chip curl radius, and chip thickness decrease compared to traditional restricted contact tools. A dramatic reduction in flank wear of up to 44.18% is obtained in variable-length restricted contact tools compared with traditional restricted contact tools. Variable-length restricted contact structures also reduce the adhesion rate and abrasion damage of tool wear processes. The insights in this study exhibit an efficient method of dry machining stainless steel and may provide a basis for designing cutting tools for green machining of difficult-to-cut materials.