Characteristics, advantages and disadvantages of ultrasonic metal welder

Features:

(1) The two welding objects overlap, the ultrasonic vibration pressure joint is synthesized in solid form, the joint time is short, and the joint part does not produce casting tissue (rough surface) defects.

(2) Compared with resistance welding, ultrasonic welding mold life is long, mold repair and replacement time is short, easy to realize automation.

(3) Ultrasonic welding can be carried out between different metals of the same metal, which consumes much less energy than electric welding.

(4) Compared with other pressure welding, ultrasonic welding requires less pressure, deformation is less than 10%, and the deformation of cold press welding parts is as high as 40%-90%.

(5) Ultrasonic welding does not need pretreatment and post-treatment of the welding surface like other welding.

(6) Ultrasonic welding helpless flux, metal filler, external heating and other external factors.

(7) Ultrasonic welding can reduce the temperature effect of the material to very low (the temperature of the welding zone does not exceed 50% of the melting temperature of the metal to be welded), so the metal structure will not change, so it is very suitable for welding applications in the field of electronics.

Advantage:

High fusion strength;

Close to cold processing, workpiece without annealing, no trace of oxidation;

After welding, the electrical conductivity is good, and the resistivity is very low or close to zero.

Low requirements for welding metal surface, can be oxidation or electroplating welding;

Short welding time, no flux, gas, solder.

No spark welding, environmental protection and safety.

Disadvantages:

Welding metal parts should not be too thick, solder joints should not be too large, need to be pressurized.