Metal spot welding principle: ultrasonic metal welding weldment on the individual point of contact surfaces in the joints are welded. Spot welding the metal to have a good plastic. When welding, the first weldment surface clean, then welded sheet metal lap joint assembly, the pressure between the two cylindrical copper electrodes, force is applied to compress. When large enough current in the plate at the contact to produce large amounts of resistance heat, the center of the hottest region of the metal is quickly heated to high plastic or molten state, the formation of a lens-shaped liquid bath. Continue to keep the pressure off current, after the metal cooled, forming a solder joint. 

 Welding advantages: Ultrasonic welding is its fast, clean, safe, etc. to achieve an advanced plastic bonding process, using Japanese components, reliable force; multiple protection circuit, to provide enterprises with efficient method of welding, reduce production costs. Welcome to inquire.