Home/Technical Glossary/Compacting Compacting Compacting (wire compacting) is an ideal method for creating a solid fused joint in both solid and stranded wire welding applications. Tungsten electrodes produce the weld heat and ceramic tooling inserts “compact” the flow of metal from the sides. Typical applications include wire welding, wire harness welding, compacting of stranded wires prior to welding, and multiple wire assemblies. Watch a wire compacting video.