摘要
针对各向同性热解石墨切削过程中刀具磨损过快的问题,采用硬质合金刀具进行了切削加工试验,研究了切削过程中硬质合金刀具的磨损形式、磨损过程以及刀具磨损对表面加工质量的影响。通过对试验结果的研究分析表明:硬质合金刀具磨损形式为后刀面磨损以及切削刃崩刃破损,刀具磨损机理为磨粒磨损。刀具的有效切削距离仅为250m左右,已加工表面分布着形状和深度大小不一的凹坑,表面加工质量差,硬质合金刀具作为各向同性热解石墨的切削刀具具有一定的局限性。
According to rapid tool wear in the cutting process of isotropic pyrolytic graphite graphite, turning of isotropic pyrolytic graphite tests was conducted with carbide tools, including the wear formation of carbide tool, wear process and the effect of tool wear on surface machining quality. Based on the experimental results and analysis, the results show that the carbide tool wear mainly occurred in the flank face and cutting edge chipping blade breakage, which wear forms were abrasive wear. The effective cutting distance of tool is only about 250m, the machined surface distribute many pits, which have different shape and depth. The quality of surface machining was poor, carbide tools as the cutting tool of isotropic pyrolytic graphite has certain limitation.
出处
《机械设计与制造》
北大核心
2015年第9期131-134,共4页
Machinery Design & Manufacture
基金
国防基础科研计划支持(A3520133004)
