Working principle of ultrasonic metal welding machine
Ultrasonic metal welding machine welds non-ferromagnetic metal material workpieces through high-frequency mechanical vibration. During the welding process, one of the workpieces is fixed, and the other workpiece is cyclically vibrated on its surface at a frequency of 20/40kHz, and pressure is applied to the workpieces to form a firm bond between the workpieces to achieve the welding effect . The entire welding process can be precisely controlled without generating excess heat on the metal surface, and the welding fastness is strong.
Ultrasonic metal welding machine converts the current 50/60Hz electric frequency into 20KHz or 40KHz high-frequency electric energy through a transistor function device, and supplies it to the ultrasonic welding machine converter. The converter converts electrical energy into mechanical vibration energy for ultrasonic, and the voltage regulator is responsible for transmitting the converted mechanical energy to the welding head of the ultrasonic welding machine.
The welding head of the ultrasonic metal welding machine is an acoustic device that directly transmits mechanical vibration energy to the product to be pressed. The vibration is transmitted to the bonding surface through the welding work piece. The vibration and friction generate heat energy to melt the plastic. The vibration will reach the material in the molten state. When the interface stops, the short-term holding pressure can make the melt produce a strong molecular bond when the adhesive surface is solidified. The entire cycle is usually completed in less than a second, but its welding strength is close to that of a connected material.
