Eliminate Heat Damage And Faulty Welds: High-Precision Ultrasonic Welding With Dynamic Servo Control

1. "Cold" Welding Principle: Eliminate Thermal Damage at the Source

Unlike laser melting welding, ultrasonic welding uses high-frequency vibration (e.g., 20kHz) to rub metal surfaces under pressure, removing oxide layers and achieving atomic diffusion.

Technical advantage: The entire welding process is controlled below 60°C, making it a true cold process. This completely avoids the formation of IMCs (intermetallic compounds), meeting the demanding requirements of heat-sensitive materials such as composite current collectors and ultra-thin copper foils.

2. Dynamic Servo Control: Solving "Cold Welds" and "Burn-Through"

The biggest risk in tab welding is unstable pressure control. Too little pressure causes cold welds (poor bonding); too much pressure burns through the material.

Technical edge: Jiayuanda's equipment introduces high-precision servo pressure control, achieving pressure accuracy down to 0.01N. This micron-level control ensures that every layer of foil (even ultra-thin 12μm foil) is tightly bonded, eliminating the spatter and cold weld issues common with traditional resistance welding.