作　　者： ; ; ; ;

机构地区： 山东大学机械工程学院

出　　处： 《组合机床与自动化加工技术》 2007年第7期14-16,共3页

摘　　要： Ti6A l4V是典型的难加工材料,切削效率低、刀具磨损严重严重,因此提高Ti6A l4V的加工效率和刀具寿命是急需解决的问题。作者对硬质合金刀具加工Ti6A l4V的切削力和磨损特性进行了实验研究。对三种不同刀具在干切削状态下车削Ti6A l4V切削力进行了试验,分析了切削力与切削速度、切削路程的关系,同时讨论了主偏角对TC4车削稳定性的影响。最后,对刀具的的磨损形态和磨损机理进行了研究。粘结、扩散、氧化是硬质合金刀具的主要磨损机理。 Ti6Al4V is a difficult to machine alloy, low cutting efficiency and acute tool wear are the main representations. So, improvement of tool life and cutting efficiency in Ti6Al4V cutting is the key problem to be solved. Turning test with thee different tungsten carbide tool have be done at cutting speed 40, 80, 120, 160 m/min, the relationship between cutting force and cutting speed, cutting distance was analyzed, the influence of working cutting edge angle on the stability of cutting system was investigated as well. Finally, the tool wear and wear mechanics was analyzed. Adhesion, diffusion and oxidation are the main tool wear mechanisms.

关 键 词： 切削速度 切削力 刀具磨损 磨损机理

领　　域： [金属学及工艺]