Ultrasonic Plastic Welding Process | EWI

Ultrasonic plastic welding is fast, efficient, and effective. It requires no consumables and produces no fumes. In this process, heat is generated due to viscoelastic losses in the plastic as a result of high-frequency mechanical movement. The plastic will then soften or melt, allowing the polymer chains to diffuse across the joint and become entangled, producing a weld.

In summary:
1. High-frequency mechanical movement creates viscoelastic losses at the joint.
2. The plastic softens or melts.
3. Chain entanglement is achieved between the two plastic parts

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