摘要
针对超硬铝合金切削加工过程的参数对精度、表面粗糙度及加工效率的影响规律开展研究。采用有限元仿真结合工艺试验的手段,建立起切削力、表面粗糙度、切削速度、进给量等切削加工工艺过程主要技术参数模型,研究了表面粗糙度与切削速度、进给量、切削深度相互关系的特征曲面和等高值图。分析表明,进给量对表面粗糙度影响最为显著,其次分别是切削深度和切削速度。而切削力随切削速度的增加而减小,减小的趋势随切削速度的增加趋于平缓。结果表明:要获得较小的表面粗糙度的技术参数值为:切削速度v:500~600 m/min、进给量f:0.02~0.035 mm/r、切削深度a_(p):0~0.08 mm。
Purpose-With the increasing demand for the application of superhard Aluminum alloys in lightweight fields such as aviation and aerospace,in order to ensure these high-quality components,this article conducts research on the influence of parameters in the cutting process of superhard aluminum alloys on accuracy,surface roughness,and processing efficiency.Method-By using finite element simulation combined with process experiments,a relationship model was established between the main technical parameters such as cutting force,surface roughness,cutting speed,and feed rate.The characteristic surfaces and contour maps of surface roughness varying with different cutting speeds,feed rates,and cutting depths were studied.Result-Analysis shows that the feed rate has the most significant impact on surface roughness,followed by cutting depth and cutting speed.The cutting force decreases with the increase of cutting speed,and the decreasing trend tends to be gentle with the increase of cutting speed.Conclusion:To obtain a smaller surface roughness,cutting parameters velocity:500~600 mm/min,feed:0.02~0.035 mm/r,andcutting depth:0~0.08 mm.
作者
康凤
刘磊
张杰
林军
屈俊岑
王艳彬
张菲玥
KANG Feng;LIU Lei;ZHANG Jie;LIN Jun;QU Juncen;WANG Yanbin;ZHANG Feiyue(Southwest Technology and Engineering Research Institute,Chongqing 400039,China;Shanxi Diesel Engine Industry Co.,Ltd.,Datong 037036,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2024年第S01期387-390,共4页
Journal of Ordnance Equipment Engineering
基金
总装预研基金资助项目(513120110)。
关键词
超硬铝合金
切削加工
有限元
切削力
表面粗糙度
superhard aluminum alloy
cutting
finite element
cutting force
surface roughness
