摘要
分析了切削速度、进给量和切削深度对表面粗糙度的影响规律,提出了一种车削难加工材料钛合金TC11表面粗糙度的建模方法.采用中心组合设计方法,建立了用于表面粗糙度预测的多元回归模型,运用方差分析检验了该预测模型的拟合度,利用响应曲面法对表面粗糙度建立等值响应曲面,从而可以通过切削参数的优化在保证加工质量的前提下获得更高的材料去除率,实现难加工材料钛合金高效切削.
This paper presented a study of the development of a surface roughness model for finish turning of TC11.The model was developed in terms of cutting speed,feed rate and depth of cut.The multi-quadratic regression equation predicting formula for surface roughness was established by means of central composite design of experiment,and variance analyses were applied to check the fitting degree of the predictive model.Then the response surface methodology was used to generate response contours of surface roughness.The experimental results indicate that the material removal rate can be improved by selecting optimal cutting parameters without increasing the surface roughness.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2010年第4期447-451,共5页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(50935001
U0734007)
国家科技重大专项课题基金项目(2009ZX04014-041)
国家高技术研究发展计划(863)项目(2009AA04Z150)
关键词
面心组合设计
响应曲面法
表面粗糙度
等值面
参数优化
central composite face-centered design
response surface methodology
surface roughness
iso-surface
parameter optimization
