基于响应曲面法的切削38CrMoAl材料表面粗糙度预测模型和优化  

Prediction Model and Optimization of Surface Roughness of Cutting 38CrMoAl Material Based on Response Surface Method

作　　者：史永鹏 武云鹏[1] 杨锋光[1] 居飞飞 郭华锋 刘小军[1] 樊文欣[2] Shi Yongpeng;Wu Yunpeng;Yang Fengguang;Ju Feifei;Guo Huafeng;Liu Xiaojun;Fan Wenxin(不详;North Automatic Control Technology Institute,Taiyuan 030051,China)

机构地区：[1]北方自动控制技术研究所,太原市030051 [2]中北大学机械与动力工程学院

出　　处：《工具技术》2023年第12期89-92,共4页Tool Engineering

基　　金：山西省自然科学基金(2012011023-2)。

摘　　要：38CrMoAl材料具有优良的力学性能,被广泛应用在精密传动系统中,其应用工况对零件的表面质量要求较高,机械加工过程中,各因素相互耦合,影响零件的表面粗糙度,很难建立显式的关系式。本文基于响应曲面复合设计方法进行切削加工试验,建立38CrMoAl材料数控车削过程中的预测模型,采用Design-Expert 13软件对表面粗糙度进行回归系数及方差分析,对数控车削加工参数进行优化。通过试验分析得出切削最优参数:切削转速2500mm/s、进给量0.1mm/r、切削深度0.25mm时,38CrMoAl材料表面粗糙度达到最小。该项研究为企业加工此类材料提供了理论依据。38CrMoAl material has excellent mechanical properties,it is widely used in precision transmission systems,its application scenarios have high requirements for the surface quality of parts,the coupling of various factors in the machining process affects the surface roughness of the parts,it is difficult to establish an explicit relationship,this paper is based on the response surface composite design method for cutting processing tests,the establishment of 38CrMoAl material CNC turning process prediction model,Design-Expert 13 is used to analyze the regression coefficient and variance of the surface roughness,and the CNC turning parameters are optimized.Through experimental analysis,the optimal cutting parameters are obtained:when the cutting speed is 2500mm/s,the feed is 0.1mm/r,and the cutting depth is 0.25mm,the surface roughness of 38CrMoAl material reaches the minimum,which provides a theoretical basis for enterprises to process this material.

关 键 词：切削加工 38CrMoAl材料 响应曲面法 表面粗糙度 预测模型 

分 类 号：TG501.2[金属学及工艺—金属切削加工及机床] TH161.14[机械工程—机械制造及自动化]