电焊机2011，Vol.41Issue(8)：93-96,4.
双脉冲MIG焊专家数据库的曲线拟合方法研究
Research on double-pulsed GMAW (DP-GMAW) expert database based on curve fitting
摘要
Abstract
In order to establish the expert database of double-pulsed CM AW, SO sets of data of well-matched welding current and wire speed were obtained through craft experiments.Then the fitting curves of different orders of these data by MATLAB could be gotten. By evaluating linearity and error control ability of the curves with R-square,Adjusted R-square and RMSE.the one with optimal order could be acquired.Based on the optimal fitting curve,a complete expert data base with perfectly-matched currents and wire speeds could be built.Test results showed that the adjustment of welding current and wire speed could be unified,and steady welding process as well as fine welding quality could be achieved by the application of the parameters picked from the expert database.关键词
双脉冲MIG焊/专家数据库/曲线拟合/MatlabKey words
double-pulsed GMAW/expert database/curve fitting/Matlab分类
矿业与冶金引用本文复制引用
林放,陈小峰,魏仲华,崔龙彬,高理文,薛家祥..双脉冲MIG焊专家数据库的曲线拟合方法研究[J].电焊机,2011,41(8):93-96,4.基金项目
国家自然科学基金资助项目(50875088) （50875088）
广东省科技攻关资助项目(2008B010400006):番禺区攻关资助项目(2010-Z-22-1):黄埔区攻关资助项目(1021) （2008B010400006）
