In principle, this is the case unless there is a special requirement, because the weld will contract after welding.The longer the weld, the greater the shrinkage.The shrinkage of short weld bead is smaller than that of long weld bead. First of all, the long weld bead will not have large deformation, so as to reduce the welding internal stress and welding deformation of the whole weld.This is one of the measures to control welding deformation and welding internal stress.Long welds can also be segmented and disassembled into short welds to achieve ideal welding results.