文献类型：期刊文献

中文题名：基于PLC控制的异种金属的焊接工艺研究

英文题名：Study on Welding Process of Dissimilar Metal Based on PLC Control

作者：朱珠 刘东阳

第一作者：朱珠

机构：[1]贵州理工学院电气工程学院

第一机构：贵州理工学院电气与信息工程学院

年份：2014

卷号：43

期号：15

起止页码：196-198

中文期刊名：热加工工艺

外文期刊名：Hot Working Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

语种：中文

中文关键词：PLC;AZ31镁合金;Q235钢;焊接;组织

外文关键词：PLC; AZ31 magnesium alloy; Q235 steel; welding; microstructta-e

摘要：基于PLC控制技术对AZ31镁合金和Q235钢异种金属进行了MIG熔焊连接，研究了焊接电流和焊接速度对焊缝成形性的影响．分析了焊接过程中裂纹和气孔缺陷的形貌及其产生原因。结果表明，AZ31镁合金／Q235钢的MIG焊接电流为155～165A、焊接速度为0．35～0．40m／min时，焊接热输入较为合适，焊缝的成形效果较好。
AZ31 magnesium alloy and Q235 steel dissimilar metal were connected by MIG welding technology based on PLC control. The effects of welding current and welding speed on weld forming were studied, the morphology and its causes of crack and blowhole defects in welding process were analyzed. The results show that, when the MIG welding current is 155-165 A, and the welding speed is 0.35-0.40 m/min for AZ31 alloy/Q235 steel, the welding heat input is appropriate, and then good weld forming effects can be obtained.