球墨铸铁高速铣削加工工艺参数优化实验研究
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摘要
针对难加工球墨铸铁材料进行高速铣削工艺参数优化研究,设计了四因素四水平正交实验,以获得铣削用量对加工过程力和表面粗糙度的影响关系,并利用多元回归分析建立铣削分力和粗糙度的经验模型。研究结果表明:每齿进给量对粗糙度值影响最为显著,铣削参数设置不同,产生的铣削分力不同,背吃刀量对铣削分力影响最大。针对最小铣削力与最小粗糙度的目标,分别得出最优的铣削用量参数。
Aiming at the optimization of high-speed milling process parameters for difficult-to-machine ductile iron materials,a four-factor four-level orthogonal experiment was designed to obtain the impacts of milling amount on machining process force and surface roughness,and multi-regression analysis was used to establish an empirical model of the milling force and roughness. Results show that the per-tooth feed has the most significant impact on the roughness value. Different milling parameters will produce different milling forces. The amount of back cutting depth has the greatest influence on the milling force. Optimal milling parameters are obtained respectively for the goal of a minimum milling force and a minimum roughness.
Aiming at the optimization of high-speed milling process parameters for difficult-to-machine ductile iron materials,a four-factor four-level orthogonal experiment was designed to obtain the impacts of milling amount on machining process force and surface roughness,and multi-regression analysis was used to establish an empirical model of the milling force and roughness. Results show that the per-tooth feed has the most significant impact on the roughness value. Different milling parameters will produce different milling forces. The amount of back cutting depth has the greatest influence on the milling force. Optimal milling parameters are obtained respectively for the goal of a minimum milling force and a minimum roughness.
引文
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[2]徐振宇,李大勇,马旭梁,等.基于灰色关联理论的球墨铸铁原铁液冶金状态评价模型[J].机械工程学报,2017,53(22):37-42.
[3]郭双桥,杨军,陈美玲.不同含量改性纳米粉体对球墨铸铁拉伸性能的研究[J].材料导报,2018,32(S1):358-360.
[4]佟艳娇. PCBN刀具负倒棱作用及其加工球墨铸铁的研究[D].大连:大连理工大学,2006.
[5]高艳.切削参数对球墨铸铁件表面粗糙度影响的研究[J].机车车辆工艺,2013(4):12-13.
[6]SOUSAJAGD,MACHADOR,SILVA RBD,et al. Study of the variability of the machinability along the cross section of ductile Iron produced by continuous casting[J]. Procedia Manufacturing,2017(10):307-318.
[7] GHANIJA,RIZAL M,CHE H C H. Performance of green machining:a comparative study of turning ductile cast iron FCD700[J]. Journal of Cleaner Production,2014(85):289-292.
[8]彭林中,张宏.机械切削工艺参数速查手册[M].北京:化学工业出版社,2010.