The main materials of battery cooling plates are aluminium alloy and stainless steel. Due to the requirements of low density and various forming processes, aluminium alloy can meet the lightweight requirements of the application end. At present, there are two process schemes for battery cold plate: integral casting and aluminium profile welding. And the technique of FSW is favored by more and more new energy automobile OEMs at home and abroad.

FSW welding has been widely used in the manufacture of EV battery cooling plate and EV battery tray FSW because of its non-melting, automation, intelligence, environment-friendly and integrated characteristics.