High Frequency Ultrasonic Metal Welding For Aluminum Nickel Sheet Ultrasound Technology

High Frequency Ultrasound Technology for Welding of Aluminum and Nickel Sheet

Description: 

Common ultrasonic metal welding can be divided into high frequency (above 50Khz), intermediate frequency (30-40khz), and low frequency (20khz). The high-frequency machine has small power capacity and thin welding thickness, so we generally refer to the ultrasonic welding machine as the intermediate frequency and low frequency.
According to the use of points, can be divided into: spot welding, seam welding, wire harness, sealing and cutting. Since vibration propagates in metal with various vibration modes: longitudinal vibration, radial vibration, bending vibration, and torsional vibration, it is possible to comprehensively analyze which vibration mode is used according to the material to be welded, and pressurize based on the vibration mode. The design of the mechanism and the frame. Various vibration modes are used in various applications, so it is not appropriate to distinguish between vibration modes.
Spot welding: The vibration system of the spot welder can be divided into a longitudinal vibration system, a bending vibration system and a torsional vibration system according to the vibration of the acoustic pole. For torsional vibration systems, generally used for ring welding. Most use a longitudinal vibration system.
Roll welding: Roll welding is generally performed using a bending vibration system that requires several wavelengths depending on the diameter of the pad.
Ultrasonic metal welding machine is currently used: for solar cells, flat solar heat absorbing plates, aluminum-plastic composite pipe welding, copper, aluminum splicing
Wiring harness: Current application of wire harness welding: automotive wiring harness; wire head forming; wire mutual welding; multiple wires are welded to each other; copper and aluminum wire conversion
Sealing and cutting: Ultrasonic sealing machine: used for sealing of copper tubes in refrigerators, air conditioners, etc.; vacuum devices for copper and aluminum tubes.

Specifications:

Welding advantages:

1. Welding material does not melt, non-fragile metal characteristics
2. Conductive and thermal conductivity after soldering, low resistivity or near zero
3. Low requirements on the surface of the welded metal, oxidation or plating can be welded
4. Short welding time, no need for any flux, gas, solder
5. Easy to realize the connection and automatic control between dissimilar metals
6. Welding without sparks, fast and environmentally safe
One of the main disadvantages of metal ultrasonic welding is that the power required for welding increases exponentially with the increase in thickness and hardness of the workpiece, and is therefore limited to thin parts such as wires, foils, and sheets.

High Frequency Ultrasound Technology for Welding of Aluminum and Nickel Sheet