Magnetic Pulse Welding of Dissimilar Materials: Aluminum-Copper

Influence of Surface Preparation on the Interface of Al-Cu Joints Produced by Magnetic Pulse Welding

“…The Al was a tube of 100 mm length, 1 mm wall thickness, and an outer diameter of 20 mm. The copper was a rod with a diameter adapted from a related study [17] based on the gap distance that produced the best results (φ = 16 mm). Several copper rods were surface treated to obtain different surface roughness, these treatments included machining (appeared as M in this study), sandblasting (G), polishing (P), chemical attacking (Q), lubricating (O), and threading (R).…”

“…The SEM/EDS results obtained from the zones of interest indicated in the images in Figure 5. A related study that used similar processing windows [17], the formation of other intermetallic compounds (which contain a higher quantity of copper) were reported, therefore the interaction of copper and aluminium atoms has changed. The sample length used for this research was longer than that of the related study which likely influenced the welding window and consequently the heat and atomic interactions.…”

Manufacturing of hybrid aluminum copper joints by electromagnetic pulse welding – Identification of quantitative process windows

“…Therefore, in literature frequently the collision parameters -i.e. the impact velocity and angle -are used for sketching a process window, which is independent from the equipment and the specific setup, but usually these parameter windows are defined qualitatively only [8,9].…”