Top rated MIG welders shop UK 2023: Flux core welding machines are generally used for welding thick metals. In this machine, the weld uses the heat generated by an electric arc to fuse the base metal at the joint area. FCAW machines are preferred for working in indoor and outdoor environments. The flux-filled electrode is fed continuously so there is no need to stop and restart. These types of welding machines have less electrode waste and are known to produce some fumes during operation. Some FCAW welders can operate at extremely hot temperatures, approaching 1000 amps. Jancy Engineering slugger JHM …