Wear of titanium alloy turning tool based on nano-fluid lubrication

LV Na
(College of Mechanical Engineering, Changchun Vocational Institute of Technology, Changchun 130000, China)

Abstract: Aiming at the problem of severe tool wear during the machining of titanium alloys with carbide cutter, this problem was studied based on the theory of nano-fluid lubrication in the turning process of titanium alloys. Firstly, the spray lubrication theory of atomized nanofluids was discussed, and the preparation methods and basic atomization performance of the two kinds of nanofluids were analyzed. Then, the titanium alloy was turned by carbide cutter, to analyze the lubrication effect of nanocrystal. The influence of the volume fraction, injection pressure and liquid supply distance of different carbon nanotubes on the wear condition of the rear cutting surface was further studied. The results indicate that compared with the ordinary method, atomized nanocrystalline can effectively reduce the wear degree of the carbide cutter, among which the maximum wear amount of the tool is reduced by 51.7% when lubricated by ethylene glycol nanocrystalline and 40.6% when lubricated by vegetable oil-based nanocrystalline.
Key words: carbide cutter; titanium alloy; nanofluids; tool wear