철도차량 하부구조의 적정 용접조건에 관한 연구

초록

In this study, MIG welding was performed on extruded 6005A-T6 material, which is used in the base panelof railway vehicles. The material was considered as the experimental base material, and argon shielding gas andER5356 and ER4043 filler metals were used as the consumable welding materials. Welding coupons wereprepared under various welding conditions by using an auto-welding system that various welding conditionsapplied 2.5Hz and 4.5Hz the pulse frequency of SynchroPuls function of welding machine and 1.0mm and1.5mm of root face affect the weld penetration of welding joint. The welding current and voltage were alsovaried for this testing. On the basis of the results obtained, optimum welding conditions are proposed.

키워드