切削参数对PDC刀具切削铝合金表面质量的影响

Effect of Cutting Parameters on the Surface Quality of PDC Cutting Aluminum Alloy

采用单位自主生产的PDC刀具,在CAK4085Anj数控车床上进行切削铝合金实验。利用正交实验方法研究切削参数对表面粗糙度的影响程度,同时采用单因素实验法分别研究进给量、切削速度以及切削深度对表面粗糙度的影响规律,并对切屑进行微观形貌分析。研究结果表明进给量对表面粗糙度的影响最大,切削速度其次,对表面影响最小的是切削深度。当切削参数为v=200 m/min、f=0.05 mm/r、u=0.25 mm时,可获得最低的表面粗糙度Ra=0.586μm。

The cutting aluminum alloy experiment was carried out on a CNC lathe by using PDC cutters produced in-house.The effect of Cutting parameters was studied by a orthogonal experiment method.The effect of feed rate,cutting speed and depth on surface roughness was studied by single factor experiment as well as microscopic analysis of aluminum debris.The results shew that the feed rate had the greatest influence on the surface roughness,the cutting speed was the second,and the cutting depth had the least influence on the surface.When the cutting parameters were v=200m/min,f=0.05mm/r,u=0.25mm,the lowest surface roughness Ra=0.586μm could be obtained.