机构地区: 山东大学机械工程学院
出 处: 《制造技术与机床》 2006年第8期65-68,共4页
摘 要: 在五轴高速加工中心上,采用多元回归正交试验法对45#中碳钢和P20模具钢进行了高速铣削试验。基于概率统计和回归分析原理,建立了表面粗糙度预测模型,并对回归方程和回归系数分别进行了显著性检验。通过分析正交试验直观图,研究了铣削用量对表面粗糙度的影响。为合理选择铣削参数提供了可靠的依据。 A predictive model is presented for the surface roughness in high - speed milling of carbon steel 45# and dies - mold steel P20 based on multiple regression analysis. The data for establishing the model is derived from the experiments conducted on a high - speed 5 - axis machining center by factorial design of experiments. The significances of the regression equation and regression factor coefficients are verified in this paper. The effects of milling parameters on surface roughness are investigated by analyzing the experimental curves.