Welding Copper To Aluminium. Welding of dissimilar materials in order to reach a high strength and durable joints is a reasonable. The welding temp of the files will be above the melting point of copper and copper alloys melt even lower.
It is manufactured by adding 015 percent silicon to prevent the formation of cuprous oxide. The conventional techniques used to join copper to aluminium are ultrasonic welding 27 28 29 30 friction welding 3132 and laser welding 33 34 35 36 37 38 39 40. This is an SPI Lasers patented process.
The quality and cost-beneficial linking of these materials is.
The deoxided copper is best suited for welding. With proper controls all or most of the molten metal is forced out of the joint and the weld is complete as a solid state process. So copper is welded to aluminum allowing the aluminum to be used as the mounting surface. The objective of irradiating the laser beam from the copper side Cu on top is to exploit the higher solubility of Al in Cu about 18 which is significantly higher than Cu in Al.