铝硅合金双脉冲MIG焊专家数据库  

Study on expert database of double pulse MIG welding for Al-Si alloy

作　　者：黄文超[1] 熊丹枫[1] 薛家祥[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《焊接技术》2009年第11期43-46,共4页Welding Technology

基　　金：国家自然科学基金(50875088);广东省科技攻关(2008B010400006);广州市黄埔区科技攻关项目(0928)

摘　　要：设计了基于DSP的数字化双脉冲MIG焊电源,在此基础上进行铝硅合金材料双脉冲焊接专家系统的试验和开发。采用最常用的铝硅合金焊丝ER4043,按照不同的焊丝直径分组,进行了大量的焊接试验,并获得了一系列不同参数下的最佳参数匹配,包括强弱脉冲参数匹配,焊接电流与送丝速度的匹配,以及与焊接行走速度的匹配,最终形成了ER4043焊丝双脉冲焊接参数的数据库。试验结果表明,根据一元化调节的参数进行焊接,焊接电流波形规整稳定,无断弧现象发生,焊缝质量较好,而且具有良好的可重复性,基本达到了专家数据库的要求。Digital double pulse MIG welding power source was established with a central controller of DSP,based on which the development and experiments of Al-Si alloy double pulse MIG welding expert database were carried out.ER4043,most common Al-Si alloy was adopted in the study,and a lot of welding tests grouped by wire diameter were performed.Serials of optimal parameters with different specifications were achieved,including strong/weak pulse matching,current/wire feeding speed matching and current/welding speed matching.As a result,database of ER4043 Al-Si alloy double welding parameters was established.Test results showed that arc and current waveforms were periodic and stable,and seams of fine quality could be achieved by using the parameters adjusted according to the database.Adding to the good repeatability,the database met the requirements of expert databases.

关 键 词：铝硅合金 双脉冲焊 一元化调节 专家数据库 

分 类 号：TG444.72[金属学及工艺—焊接]