Dynamic Fabrication is your total source for certified welding, fabrication, machining, and assembly. We produce high quality work ranging from precision parts to complete assemblies. DFI is certified to weld all metals including copper welding. Copper and copper-nickel alloys can be welded with the metal arc process, using a stick electrode coated with flux. Dynamic Fabrication is certified to weld all metals.
Copper Welding Overview
Copper welding alloys include plain copper and beryllium copper, brasses (alloyed with zinc) and bronzes (variously alloyed with tin, nickel, phosphorus, aluminum, silicon). Four processes to consider when joining copper and copper alloys are mechanical couplings, welding, soldering and brazing.
Elements that hinder copper welding and reduce copper alloy welding are low melting elements like lead, sulfur and tellurium. Welding copper tends to lower mechanical properties. Arc welding copper includes shielded metal arc welding, gas-tungsten arc welding, gas-metal arc welding, and plasma arc welding. Metal inert gas welding is also used. Tungsten inert gas welding makes strong welds in complex joints.
Most copper alloys produce volatile and toxic elements when welded. This is not the case when welding steel. Use procedures to collect and dispose of noxious fumes, powders and dust. Provide an effective ventilation system.
Copper and Copper alloys are important due to their good electrical and thermal conductivity, corrosion resistance, and wear resistance. The major markets for copper welding are building, electrical, electronic, industrial machinery and transportation. When welding copper, employ 70-30 copper-nickel filler that contains at least 70 percent copper. The welded metal will be strong because of the high nickel content.
Copper alloys include plain copper and beryllium copper, brasses (zinc), and bronzes (tin, nickel, phosphorus, aluminum, and silicon). Some copper alloys do not weld well.