焊接变形不仅会影响结构的外形尺寸和精度,使矫形工作量增加,提高制造成本,而且还会降低结构的承载能力。本文针对焊接变形的种类及产生原因,详尽地阐述了预先防止、控制产生焊接变形的措施,以便在实际工作中将应力和变形控制在最小程度,保证焊接结构的质量,提高生产效率。 Welding deformation not only affects the overall dimensions and accuracy of the structure, but also increases the amount of orthopedic work required, increases manufacturing costs, and reduces the structural carrying capacity. In this paper, according to the types and causes of welding deformation, the measures to prevent and control the welding deformation are elaborated in order to minimize the stress and deformation in the practical work, to ensure the quality of the welding structure and to improve the production efficiency.