Wear Performance of Cu–Cd, Cu–Be and Cu–Cr–Zr Spot Welding Electrode Materials

Heating of the electrode at work–piece interface zone in spot welding, leading to degradation tip, becomes a significant concern high-volume production automotive industry. By recognizing interrelationship between hardness, wear resistance, and thermal conductivity, authors emphasize importance selecting materials with suitable alloying elements desirable for achieving optimal performance welding applications. This paper studies behaviour three types spot-welding under dry sliding contact conditions. A pin-on-disc tester was used investigate Cu–Cd, Cu–Be Cu–Cr–Zr alloys’ variable parametric load, temperature time Taguchi L9 orthogonal array significance parameters their effect on linear wear. The ranking performed using SN ratio analysis. mechanism also studied SEM Abrasive observed lower loads, while adhesion, oxidation plastic deformation were high-load -temperature study suggests an alternative presently electrolytic tough pitch (ETP) Cu involving equally good wear-resistance material. However, detailed investigation plasma metallurgical characteristics selected material is suggested.