摘要
针对硬质合刀具加工钛合金时刀具磨损严重的问题,基于纳米流体润滑理论,对钛合金车削过程中刀具磨损问题进行了研究。首先,对雾化纳米流体喷射润滑理论进行了讨论,分析了两种纳米流体的制备方法和基本雾化性能;然后,为分析纳米流体的润滑效果,采用硬质合金刀具对钛合金进行了车削加工实验,并进一步研究了不同碳纳米管的体积分数、喷气压强及供液距离对后刀面磨损状况的影响。研究结果表明:与普通方式相比,采用雾化纳米流体可有效减少刀具的磨损程度,其中乙二醇基纳米流体润滑时刀具磨损量最大降低了51.7%,植物油基纳米流体润滑时刀具最大磨损量降低了40.6%。
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.
作者
吕娜
LV Na(College of Mechanical Engineering,Changchun Vocational Institute of Technology,Changchun 130000,China)
出处
《机电工程》
CAS
北大核心
2020年第10期1231-1235,共5页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金青年基金项目(51705189)。
