Welding Metal Process. Table 51 in AWS D14 provides the requirements for filler metal needed to weld the rebar. Two of the most important processes use a gas shield to protect the weld metal from atmospheric contamination.
Once that lead is pulled away from the material an electric arc is generated. This simply means that prior to welding the steel and aluminum together the steel is first coated in aluminum. An example would be the method for A615 grade 60 rebar.
Welding is a fabrication process whereby two or more parts are fused together by means of heat pressure or both forming a join as the parts cool.
Along with cutting welding is one of the most popular metal fabrication processes among crafts enthusiasts. When a permanent join is required welding is commonly used. In Europe the European Committee for Standardization CEN has adopted the ISO standards on welding procedure qualification ISO 15607 to ISO 15614 and on welder qualification ISO 9606 with the exception of qualification for steel welders where a new version of the old European EN 287-1 standard still. Another method many use to successfully weld aluminum to steel is dip coating also commonly referred to as hot dip aluminizing.