关键词: 厚板单边 V 型坡口；接焊有效熔深；线能量；焊丝指向

Abstract: : butt weld are tested. Through the welding samples after matching the different welding parameters affecting the penetration, the key influencing factors line energy and wire direction are obtained, and then the different levels of line energy and wire direction are tested respectively to verify the effective penetration through metallographic inspection. According to the defect level and appearance quality, the different parameters and the best parameter range for controlling the penetration control of single-sided V-groove butt welding of thick plate are obtained, and the parameter control methods and implementation measures are clarified to ensure the effective penetration of butt weld, which is applied to the production process, improve the product quality and reduce the after-sales fault loss.

Key words: Thick plate single side v-groove; Effective weld penetration; Line energy; Wire pointing