箱型体结构焊接变形工艺控制吕家才 （天津重钢机械装备股份有限公司 天津300459）【摘要】主要针对箱型体结构焊接易变形，且变形后不易矫正的现象，提出合理的焊接工艺方法。从装配顺序、热输入控制及焊接顺序等方面着手，有效控制了焊接变形，达到了预期效果。实践证明：此焊接工艺不仅对控制箱体焊接变形有显著效果，并且间接降低了公司的生产成。【abstract】With the deformation of welding box structure ,and the phenomenon of the deformation is not easy to correct ,the welding process was proposed reasonable. Starting from the aspects of assembly sequence and the heat inputs control and welding sequence, Effective control of welding deformation, to achieve the desir
