Telecommunication cable aluminum strip copper strip ultrasonic spot welderis used for reliable connection between charging pile high-voltage cables (95mm2 copper wire) and terminals, ensuring stability and safety in high-current transmission. It utilizes high-frequency vibration (20-40kHz) and pressure to generate heat through metal molecular friction, achieving cold welding while avoiding material oxidation, annealing, or deformation. With short welding time (typically 1-3 seconds) and no spatter, it is suitable for automated production lines. Capable of welding dissimilar metals such as copper-copper and copper-aluminum, it addresses the challenge of connecting copper terminals to aluminum cables in charging piles. No solder or gas protection is required, meeting green manufacturing requirements.