Designing joints for strong ultrasonic welds
| Type | Amorphous Plastic | Semi-Crystalline |
|---|---|---|
| Energy Director (V-notch) | Standard 90 deg V | Standard 60 deg V |
| Shear Joint | 0.1-0.2mm interference | 0.2-0.3mm interference |
| Step Joint | 0.15-0.25mm gap | 0.2-0.3mm gap |
PS/ABS: 30-50 microns. PC: 40-70 microns. PA/Nylon: 50-80 microns. PP/PE: 60-100 microns.