切削参数对粗精铣合体刀具铣削加工表面质量的影响

采用硬质合金刀具,通过单因素实验对铸铝材料的表面铣削加工过程进行研究,获得最佳的切削参数,提高加工表面质量。实验以粗精铣一次完成工艺代替粗加工—精加工分步完成的加工工艺,研究粗精铣合体刀具加工中最佳的切削参数组合。实验结果表明,对于铸铝零件,切削加工的最佳切削参数组合为:切削速度v=3000r/min、进给量f=1000mm/min、背吃刀量a p=0.3mm。通过比较不同工艺下切削参数与表面质量之间的关系,得出在相同表面质量的要求下,粗精铣合体刀具在铣削过程可简化加工工艺,缩短加工时间。

Influence of Cutting Parameters on Surface Quality Using Combined Coarse and Fine Milling Cutter

The surface milling process of cast aluminum is studied by single factor experiment with carbide cutter,and the best cutting parameters are obtained to improve the surface quality.In this paper,the best combination of cutting parameters in the machining of coarse and fine milling combined cutters is studied.The experimental results show that,for the cast aluminum parts,the best cutting parameter combination:cutting speed v=3000r/min,feed f=1000mm/min,back feed a p=0.3mm.By comparing the relationship between cutting parameters and surface quality under different processes,it is concluded that the combined coarse and fine milling cutter can simplify the processing technology,shorten the processing time under the same surface quality requirements.