Optimization of the cutting mechanism in die steel milling using textured NCD-coated tools and vortex tube cooling
Year: 2025
Type: article
Abstract: In traditional milling of die steel, the harsh conditions, characterized by high temperature and high pressure in the cutting area, often result in excessive tool wear and poor workpiece surface quality. Textured tools coated with nanocrystalline diamond (NCD) have demonstrated significant improvements in cutting performance, while vortex tube cold air technology further optimizes the cutting conditions. This study applies NCD coatings to the surface of snowflake bionic textured tools, followed by milling tests combined with vortex tube cooling. The results demonstrate that machining with vortex tube cooling effectively reduces cutting temperature and enhances the thermal load conditions in the cutting zone. Specifically, milling temperature decreased by approximately 32.65 %, and the maximum reduction in workpiece surface roughness reached 58.76 %. Additionally, the texture on the tool surface substantially mitigates cutting heat generation, optimizes lubrication conditions, and reduces cutting force and friction coefficient, resulting in a significant reduction in tool wear and a 12.46 % decrease in milling force.
Authors: Ziyang Zhang, Daohui Xiang, Chaosheng Song, Yanqin Li, Zhiqiang Zhang, Maozhen Xu, Zhong Cheng, Guofu Gao, Jinglin Tong, Junjin Ma
Institution: Henan Polytechnic University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,520
OpenAlex ID: W4416135164