CVD金刚石涂层刀具切削性能与磨损机理研究  

Study on cutting performance and wear mechanism of CVD diamond coated tools

作　　者：刘丽红[1] Li-hong LIU(Changchun Polytechnic,Changchun 130000,China)

机构地区：[1]长春职业技术学院,吉林长春130000

出　　处：《机床与液压》2020年第18期75-79,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金项目(31970454)。

摘　　要：针对普通刀具切削质量差、刀具耐用度低等问题,对CVD涂层刀具制备方法及切削性能进行研究。首先以硬质合金刀具为基体通过CVD方法制备金刚石涂层,分析涂层表面形貌。然后在不同条件下进行铝合金材料的干式切削试验,分析金刚石涂层对切削力、切削温度以及工件表面粗糙度的影响规律。最后,通过对刀具磨损机理的分析,讨论涂层对刀具使用寿命的影响。研究结果表明,所制备的涂层刀具能够降低切削力和切削温度,大大提高刀具的切削性能和工件的表面质量,并能有效提高刀具使用寿命。Aiming at the problems of poor cutting quality and low^tool life,the preparation method and cutting performance of CVD coated tools were studied.Firstly,diamond coated tools were prepared by CVD based on cemented carbide tools,and the surface morphology of the coatings was analyzed.Then,cutting experiments of aluminum aioy were carried out under different conditions to analyze the influence of diamond coating on cutting force,cutting temperature and workpiece surface roughness.Finally,through the analysis of tool wear mechanism,the effect of coating on tool life was discussed.The results show that the coating tool can reduce the cutting force and cutting temperature,greatly improve the cutting performance of the tool and the surface quality of the workpiece,and effectively improve the service life of the tool.

关 键 词：涂层刀具 切削试验 金刚石薄膜 磨损机理 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]