The Working Principle of Ultrasonic Metal Welder
Ultrasonic Metal Welding , also named cold metal welding, is similar to friction welding but not always the same-ultrasonic welding takes a very short time and the temperature is lower than that of metal recrystallization. Ultrasonic Metal Welding is also different from pressure welding because the static pressure applied is much lower than that of pressure welding. Three main stages of ultrasonic welding to joint workpieces together This vibrational energy at the contact between the two workpieces generates local friction and shear force and produces initial plastic deformation. 2. Ultrasonic vibrations disperse impurities/oxides and lead to further deformation. This increases the metal-to-metal contact and creates a weld zone. This process is also known as micro-welding. Repeated micro-soldering results in a larger contact area, making a stronger joint. 3. Continue to add ultrasonic vibration to expand the contact area, hence, expand the welding area. At the same time, the ...