... 1A hand clamp cold pressure welding machine No need of heat or electricity and some form of flux ... heat-affected zone with unsuitable properties Simple and unexpensive to operate. More precised.Precised Die ... cold welder Application Widely used in the cold welding for the wire of copper, aluminum, gold, ... , nickel, Platinum, zinc, Tin, niobium tantalum and other non-ferrous metal rod/alloy Range of the ...