Improving lubrication performance of cemented carbide tools combined Fe3O4 nanofluids lubricating and micro-groove textures in high-speed milling Ti6Al4V
Journal of Advanced Mechanical Design Systems and Manufacturing(2022)
摘要
Efficient lubrication is the key to reducing tool friction and wear, decreasing cutting force and enhancing tool cutting performance. To find a more efficient way to improve the lubrication performance of the tools in high-speed cutting hard-cutting materials, YG6X cemented carbide milling inserts textured with micro-groove parallel to the main cutting edge and Fe3O4 nanofluids with a mass concentration of 0.5% were fabricated, the friction and wear tests and contact angle tests were carried out to investigate the coupling lubrication effects of micro-textures and nanofluids. Results obtained in this work indicated that the friction coefficient of micro-texture sample under nanofluids lubrication was reduced by 92.2% when compared with the un-textured sample under dry friction, and the contact angle of the nanofluids droplet on micro-texture surface was 72.1% lower than that of the emulsion droplet on un-textured surface. Based on the results, a series of experiments were further carried out on high-speed milling Ti6Al4V using micro-texture milling cutter under the nanofluids lubrication. The results showed that cutting forces of micro-texture milling cutters under nanofluids lubrication were reduced by 19.1%, 30.8%, 37.7% and 30.0% when compared with un-textured milling cutters under emulsion lubrication at the spindle speeds of 1000r/min, 2000r/min, 3000r/min and 4000r/min.
更多查看译文
关键词
Surface texture, Fe3O4 nanofluids, Lubrication performance, Cutting force, Titanium alloy
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要