The difference between multilayer welding and multi-layer multi pass welding?
1, multi pass welding: more than two welding passes to complete the welding of the whole weld. Multilayer welding: deposited more than two welding layers to complete the welding of the whole weld. Multi-layer welding includes multi-layer single pass welding and multi-layer multi-pass welding, a layer of weld can be composed of a number of…
