熔丝TIG焊与MIG/TIG焊工艺对比

The Comparison of the Molten Wire TIG and MIG/TIG Welding Process

为了证实熔丝TIG焊工艺的优越性,进行了熔丝TIG焊、MIG焊以及TIG焊三种方法合适工艺下的焊接生产效率、焊接过程中的飞溅率以及焊缝组织的对比。实验结果表明:熔丝TIG焊的焊接速度可以达到210mm/min,焊接效率远高于TIG焊;MIG焊的飞溅量随着焊道长度的增加而增大,而熔丝TIG焊的飞溅量随焊道的增加变化不明显,MIG焊飞溅率达到2.984%,而熔丝TIG焊仅有0.057%,熔丝TIG焊的焊接过程的稳定性远高于MIG焊。合适工艺下熔丝TIG焊的焊缝组织较MIG焊的细小。因此,熔丝TIG焊是一种稳定高效高质量的焊接新方法。

In order to confirm the superiority of the molten wire TIG welding process, the welding efficiency and the spatter lose rate were compared, and microstructures were also compared with the molten wire TIG welding process, MIG and TIG welding process. The re- sults showed the molten wire TIG welding welding speed could reach 210 mm/min, the welding efficiency was much higher than TIG welding;MIG welding spatter quantity in- creased with the increasing of welding bead length, and the molten wire TIG welding spatter quantity indistinctively changed with the increasing of the welding bead length. MIG weld- ing spatter rate was 2. 984% ,and the molten wire TIG welding was only 0. 057%, the sta- bility of the molten wire TIG welding was much higher than MIG welding. In suitable process, microstructure of the molten wire TIG welding was tinier MIG welding. So the mol- ten wire TIG was a new high efficient, stable and high quality welding method.