Ultrasonic Terminal Welding | Precision Welding of Copper Terminals and Wires
2026-08-05 00:00:00
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Welding Type
Ultrasonic terminal welding creates a solid-state bond between wires and copper, brass, or tinned metal terminals, providing strong electrical conductivity and mechanical strength.
Process Specifications
| Frequency | 20 kHz |
|---|---|
| Welding power | 3,000 W |
| Welding time | 0.3–0.6 s |
| Amplitude | 50–70 μm |
| Applicable terminals | Copper, brass, and tinned terminals |
| Wire range | 1.5–25 mm² |
| Shear force | ≥ terminal-body strength |
| Contact resistance | ≤1.2 × joint-body resistance |
| Aging degradation | <5% after high-temperature aging at 200°C for 200 hours |
Process Advantages
Precise control of welding energy and amplitude reduces terminal deformation and unstable contact resistance associated with traditional crimping.
The weld surface is neat and burr-free, meeting quality requirements in automotive and new-energy manufacturing.
Sample Display
The gallery images show actual terminal welding samples.