Ultrasonic metal spot welders for nickel-chromium alloys and brass sheets offer advantages such as strong connections, high electrical conductivity, and corrosion resistance, ensuring stable operation of equipment under high current. They exhibit good plasticity and electrical conductivity, allowing for various operations during the manufacturing process and providing a long service life. The welding process is simple, production costs are low, and it can meet the demands of large-scale production. With the increasing intelligence and efficiency of electrical and electronic devices, there will be a greater emphasis on the automation and intelligence of welding processes to improve welding efficiency and product quality.