基于响应曲面法的双丝三弧堆焊工艺参数优化  

Optimization of twin-wire three-arc surfacing parameters based on response surface method

作　　者：马振 闫玉东[3] 史畅[2] 吴锦华 王碧霞 郑建明 张二林 Ma Zhen;Yan Yudong;Shi Chang;Wu Jinhua;Wang Bixia;Zheng Jianming;Zhang Erlin(Zhejiang Wanfeng Technology Development Co.,Ltd.,Shaoxing 312400,Zhejiang,China;Northeast University,Shenyang 110167,China;Jiamusi University,Jiamusi 150007,Heilongjiang,China)

机构地区：[1]浙江万丰科技开发股份有限公司,浙江绍兴312400 [2]东北大学,沈阳110167 [3]佳木斯大学,黑龙江佳木斯150007

出　　处：《焊接》2024年第5期30-36,共7页Welding & Joining

基　　金：黑龙江省自然科学基金项目(LH2023E023);国家自然科学基金资助项目(52101222);佳木斯大学青年创新人才培养支持计划项目(JMSUQP2023001);黑龙江省口腔生物医学材料及临床应用重点实验室开放项目(KQSW202302)。

摘　　要：为了优化双丝三弧焊堆焊工艺参数和预测堆焊稀释率和焊接电流,基于响应曲面法建立了双丝间电流(M弧电流)、主弧电压等焊接工艺参数与稀释率和焊接电流的数学模型。利用Design-Expert软件对稀释率和焊接电流响应进行方差分析、模型显著性检验及模型信噪分析,研究了堆焊工艺参数对稀释率和焊接电流的影响规律,并对堆焊工艺进行了优化设计,以及结果验证。结果表明,M弧电流对焊接电流和稀释率的影响比较显著;增加M弧电流,焊接电流减小,基材熔化量变小,稀释率越小;减小熔化母材过多的进入堆焊层,保证金属粉芯焊丝的有效成分,有利于堆焊合金材料组织和耐磨性的控制。经过优化设计获得最佳堆焊工艺参数主弧电压为35 V,M弧电流为260 A,送丝速度为10 m/min,频率为70 Hz,占空比50%。In order to optimize twin-wire three-arc surfacing parameters and predict surfacing dilution rate and welding current,mathematical models between surfacing parameters such as current between twin-wire(M-arc current)and main arc voltage,and dilution rate and welding current were established based on response surface method.Design-Expert software was used to carry out variance analysis,model significance test and model signal-noise analysis on response of dilution rate and welding current.Influence of surfacing parameters on dilution rate and welding current was studied,and surfacing process was optimized and verified.The results showed that M-arc current had a significant effect on welding current and dilution rate.Increasing M-arc current,welding current decreased,melting amount of base material became smaller,and dilution rate became smaller.Reducing excessive entry of melted base material into surfacing layer and ensuring effective components of metal powder cored wire was beneficial to control of microstructure and wear resistance of surfacing alloy material.The optimal surfacing parameters were obtained by optimizing the design.Main arc voltage was 35 V,M-arc current was 260 A,wire feeding speed was 10 m/min,frequency was 70 Hz,and duty cycle was 50%.

关 键 词：双丝三弧焊 堆焊 稀释率 响应曲面法 

分 类 号：TG442[金属学及工艺—焊接]