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Secondary Operations:
Ultrasonic Welding: Checklist
- Begin initial welding using 1:1 booster, then evaluate other sizes.
- Select horn design specifically for application.
- Shear joint design
- Pressure within optimum range
- Time within optimum range
- Joint located within 0.25 in. (6.4 mm) of horn mating surface to avoid "far field" welding.
- Design part to minimize molded-in stresses.
- Design part with adequate draft to avoid topical mold releases.
- Provide adequate nest support under protruding parts to prevent flexural fatigue during welding.
- Utilize polyethylene film horn wrapping to reduce horn marks.
- Avoid welding dissimilar materials.
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