中文摘要：

大型加氢筒节零件采用难加工材料,在加工过程中刀具常会因为高温高压而磨损失效,严重影响刀具寿命,阻碍生产率的提高。为了研究切削温度对硬质合金刀具磨损机理的影响,设计并进行了2.25Cr-1Mo-0.25V钢切削试验,分析不同切削参数下刀具的高温磨损机理,并通过有限元仿真方法进行了验证,获得不同切削参数下切削温度对刀具磨损的影响规律,为刀具的设计开发和切削参数的优化提供了理论参考。

英文摘要：

Large hydrogenation shell ring part is a kind of difficult-to-machine material, tool often occurs wear failure because of high temperature and high pressure in the process of machining, which seriously affects the tool life, hinders the improvement of productivity. In order to study the effect of cutting temperature on the wear mechanism of cemented carbide tool,we design and carry out the cutting experiment on 2.25Cr-lMo-0.25V steel,to analyze the high temperature wear mechanism under different cutting parameters, and using the finite element simulation method to validate, obtain the influence of cutting temperature under different cutting parameters on the tool wear. The above research provides a theoretical reference for the cutting tool design development and the optimization of cutting parameters.