Ultrasonic metal harness welding principle: FM vibration transmission to the two metal surfaces to be welded, then pressurized, so that the two metal surfaces rubbing against each other to form a fusion between the molecular layer in the solid state, so as to achieve the welding role. 
 Ultrasonic copper and aluminum wiring harness the advantages of welding: ultrasonic metal the Harness welding is no welding materials, metal materials to achieve perfect welding, in order to improve the welding quality, to ensure the reliability of the conductive properties of the product, while addressing the The welding process dust, mess and other problems and improve the working environment, a new generation of environmentally friendly welding. 
 Compared with traditional crimp spot welding, the welding of the advantages of ultrasonic harness are as follows: 
 1, the welding time is short, greatly improving the efficiency, fast and energy saving; 
 Welding material does not melt, not fragile conductor characteristics; 
 3, fusion of strength, excellent electrical properties after welding, Resistivity is very low or almost zero; 
 4, does not require any flux, gas, solder; 
 5, welding sparks, smoke, environmental protection and safety; 
 6, the welding process is stable, online measurement and control. 

 At present, export harness connection between conductors has been widely used ultrasonic welding instead of the traditional crimp and solder welding, ultrasonic welding does not require use of welding materials, welding process is stable welding process, non-polluting, environmentally safe, production efficiency is greatly improved, the most important thing is excellent conductive properties after welding, ultrasonic metal welding line bundles has become recognized as the most economical and most reliable, quality design features, but also the future direction of development of the domestic wiring harness, along with today's world the car the increasing demand of industrial environmental, economic, security, the application of ultrasonic welding in the automotive wiring harness will be more widely used.