铝合金脉冲MIG焊动态过程辨识  

Identification of aluminum alloy pulsed metal inert-gas welding dynamic process

作　　者：石玗[1] 黄岸[1] 樊丁[1] 梁卫东[2] 

机构地区：[1]兰州理工大学有色金属合金省部共建教育部重点试验室,兰州730050 [2]兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州730050

出　　处：《焊接学报》2006年第3期57-60,共4页Transactions of The China Welding Institution

基　　金：甘肃省自然基金资助项目(3ZS051-A25-029)

摘　　要：针对铝合金脉冲M IG焊熔池动态过程,设计了阶跃响应试验,利用曲线拟合法对基值电流、送丝速度与熔宽的模型分别进行了辨识,分析了基值电流、送丝速度对熔宽的影响规律,为铝合金脉冲M IG焊过程控制提供了理论依据。Based on the step response experiment,the welding pool width model of dynamic process in aluminum alloy pulsed metal inert-gas welding was identified by least square method.The input of the model was welding wire speed and base current respectively,and the output was beam width of welding pool.The influence of wire speed and base current on welding pool width was analyzed.It provides the theoretical basis to realize the intelligent control for aluminum alloy pulsed metal inert-gas welding process.

关 键 词：铝合金 脉冲MIG焊 辨识 

分 类 号：TG444.74[金属学及工艺—焊接]