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在机械制造业中,一些铸造或锻造结构已逐渐被焊接结构所代替,特别是重型机器的机架、机身等,为了能保证足够的强度与刚度,在设计时多选用厚板结构、在厚板结构的焊缝中,其中角焊缝占有很大的比例,除比较规则且较长的角焊缝采用电渣焊外,大多数是由手工焊来完成的。角焊缝的焊接有平、立、仰、船形焊等几种焊接位置,对于易翻动的焊件一般都选用平焊和船形焊两种位置。其中船形焊操作比较容易,焊缝成型美观;
In machinery manufacturing, some casting or forging structures have gradually been replaced by welded structures, especially heavy machine frame, body, etc., in order to ensure adequate strength and stiffness, the design of more use of thick plate structure, in the design Among the welds with thick plate structure, the fillet weld occupies a large proportion. In addition to the more regular and longer fillet welds by electroslag welding, most of them are made by hand welding. Fillet weld welding flat, vertical, Yang, ship-shaped welding, and several other welding positions, for easy to flip the welding parts are generally used flat welding and welding two positions. Ship-shaped welding operation which is relatively easy, beautiful weld appearance;