5083铝合金TIG焊接工艺研究

Study on TIG Welding Process of 5083 Aluminum Alloy

摘要:

为掌握5083铝合金的焊接特性，以获得符合中国船级社（CCS标准）要求的焊接接头。针对5083铝合金焊接时易产生氧化膜、气孔、焊后变形等问题，在分析焊接性能的基础上开展TIG焊接工艺试验，同时对焊接方法、焊材的选择、保护气体、焊前准备、工艺要求等进行了研究，获得了最佳的焊接工艺参数。研究结果表明，通过采用ER5183焊丝、多功能氩弧焊机、开V型坡口、焊前预热以及采用小线能量操作，试验所获得的焊缝在无损探伤及力学性能等方面均能满足CCS标准的要求，通过以上研究掌握了该材料的焊接工艺及操作规范。

Abstract:

In order to master the welding characteristics of 5083 aluminum alloy， to obtain welded joints that meet the requirements of the requirements of China Classification Society （CCS standard）. To address the issues of oxidation film， porosity and post-weld deformation in 5083 aluminum alloy welding， the TIG welding process test is carried out on the basis of analyzing the welding performance. Meanwhile， the welding method， welding material selection， protective gas， welding preparation and process requirements were studied. The best welding process parameters were obtained. The results show that by using ER5183 welding wire， multi-functional argon arc welding machine， opening V-shaped groove， preheating before welding and using small line energy operation， the weld obtained by the test can meet the requirements of nondestructive testing and mechanical properties. According to the requirements of the CCS standard， the welding process and operating specifications of the material have been mastered through the above research.