CAJ | 학술논문

利用自动化Plasma-MIG复合电弧焊接实验平台，进行了2219高强铝合金表面堆焊实验。结果显示：Plasma-MIG 复合电弧焊接工艺对铝合金具有良好的清理作用，能够改善高强铝合金的焊接性，提高焊缝组织硬度。等离子弧的引入改变了液态金属的流动方式，有利于过饱和氢气析出，减少焊缝气孔缺陷，当工艺参数匹配合理时，焊缝成形良好，可实现2219高强铝合金的高质量焊接。
이용자동화Plasma-MIG복합전호한접실험평태，진행료2219고강려합금표면퇴한실험。결과현시：Plasma-MIG 복합전호한접공예대려합금구유량호적청리작용，능구개선고강려합금적한접성，제고한봉조직경도。등리자호적인입개변료액태금속적류동방식，유리우과포화경기석출，감소한봉기공결함，당공예삼수필배합리시，한봉성형량호，가실현2219고강려합금적고질량한접。
2219 high strength aluminum alloy surfacing welding was completed by the automation Plasma-MIG hybrid arc welding system. The results show that there is a good cleaning effect in Plasma-MIG hybrid arc welding, and it is possible to improve the welding quality of high strength aluminum alloy and increase hardness of the solidified structure of weld metal. Plasma arc changes the flow of molten metal, accelerates precipitation of saturated hydrogen and reduces the porosity of weld bead. High quality welding for 2219 high strength aluminum alloy can be achieved when the process parameters match reasonably.