Ultrasound is a mechanical wave with a higher vibration frequency than sound waves. It is generated by the vibration of the transducer wafer under the excitation of voltage. It has high frequency, short wavelength, small diffraction phenomenon, especially good directivity, which can be directed into rays. Dissemination and other characteristics. Ultrasound has a great ability to penetrate liquids and solids, especially in solids that are opaque to sunlight. It can penetrate to a depth of tens of meters. When the ultrasonic wave hits the impurity or the interface, it will produce significant reflection to form an echo, and it can produce the Doppler effect when it hits the moving object. Therefore, ultrasonic testing is widely used in industry, national defense, biomedicine, etc.
Ultrasonic metal welding is a mechanical treatment process. During the welding process, no current flows in the welded part, and there is no welding arc such as electric welding mode. Because ultrasonic welding does not have problems such as heat conduction and resistivity, it is suitable for non-ferrous metals. For metal materials, it is undoubtedly an ideal metal welding equipment system, which can effectively weld sheets of different thicknesses.