纳米颗粒增强纳米流体对刀具磨损形貌的影响

摘要

高温合金属于硬切削材料,加工性较差.在高温合金加工,刀具磨损被认为是切削性能的主要特征之一.虽然关于高温合金加工过程中影响刀具寿命的因素已有大量报道,但关于纳米粒子稳定性对纳米流体性能的影响以及由此导致的刀具磨损形貌的研究尚未见报道.在本工作中,通过提高基液的稳定性来增强纳米粒子.在此基础上,将切削液中加入表面活性剂作为增强剂,研究新型润滑剂对A286工件刀具磨损形貌的影响.%Superalloys are grouped as hard-to-cut materials with relatively poor machinability. Tool wear is considered one of the main machinability attributes in machining superalloys. Although numerous works have been reported on factors governing tool life in machining superalloys, no study was found on the effect of nanoparticles stability on nanofluid performance and consequently resulted tool wear morphologies. In the present work, the nanoparticles were reinforced by means of improving the stability of the base fluid. To that accomplished, the surface active agent (surfactant) was added to the base cutting fluid as a reinforcing element. The effects of new lubricant on the tool wear morphology of A286 works parts were assessed.