Ultrasonic Harness Welding Technology
As we all know, ultrasonic welding is one of the more extensive and non-negligible processes in wire harness processing.
Since the 1980s, ultrasonic metal welding technology has been widely used in the welding of low-voltage and communication wiring harnesses in the automotive industry.
After 2016, due to the development needs of the electric vehicle industry, the application of high-voltage lines in automobiles has become an indispensable and important position. Many advanced technologies have begun to replace crimping with more ultrasonic welding processes, becoming one of the more stable and safer welding processes.
I believe that many people pay more attention to what are the advantages of ultrasonic welding compared to crimping performance?
Ultrasonic wire beam welding Ultrasonic metal welding uses high-frequency vibration to heat metal molecules to form new crystal grains (metal molecule fusion). Since no molecular damage occurs, the joint is fusion welding, and the physical properties are close to the product. In itself, it is especially suitable for welding of non-ferrous metals and also for welding of dissimilar metals.
The traditional crimping process is usually to tightly connect the wire harness and the terminal to realize the close contact between the wire and the terminal and the wire to the wire to realize the mechanical connection. Under the general trend of automobile electrification and safety requirements, the electrical performance requirements for wiring harness connections are getting higher and higher. Ultrasonic welded joints have more performance advantages, smaller resistance, higher strength, safer conduction, and environmental protection. More and more widely used.
So what are the common application standards for ultrasonic wire harness welding?
The application of ultrasonic wiring harness welding in the automotive wiring harness industry is increasingly recognized and widely used. All well-known automotive OEMs have formulated their own requirements and specifications according to the production requirements of Six Sigma.
The standard has specific requirements for the appearance of the joint after welding, the compression ratio of the wiring harness, the mechanical properties, and the electrical properties. Among them, the mechanical properties such as straight tension and peeling residue rate are the two most frequently concerned performance indicators.
At present, domestic wire harness factories have been able to realize digitalization in some processes. Take the ultrasonic wire harness welding process as an example. As a precision welding process, it helps wire harness factories to realize faster intelligence in this process.
