Ultrasonic weld. Plastic joining. Sub-second cycle.
Ultrasonic welding process. High-frequency vibration melts plastic at joint. Sub-second cycle, automated, repeatable. Standard for high-volume plastic assembly.
Ultrasonic welding
Triangular ridges (60-90° apex angle, 0.4-0.8 mm height) on one surface. Standard design.
Key principles.
20-40 kHz vibration
Ultrasonic energy creates frictional heat at joint.
0.5-2 second
Cycle time 0.5-2 seconds. Production-friendly.
Triangular ridge
Triangular feature concentrates ultrasonic energy.
Most thermoplastics
PP, ABS, PC, nylon, PEEK. Most thermoplastics.
Automation
Easy to automate. Fast cycle.
$10-30K
Equipment investment. Production-justified.
FAQ
Triangular ridges (60-90° apex angle, 0.4-0.8 mm height) on one surface. Standard design.
0.5-2 seconds typical. Faster than vibration welding, slower than spot welding.
Most thermoplastics weld. PP, ABS easy. PEEK premium. Some materials require specific frequencies.
Tens of thousands per hour with automation. Standard for high-volume plastic assembly.
Horn (sonotrode) $1-5K per design. Designed per part geometry.
Comparable to vibration welding. Stronger than adhesive. Slightly less than hot plate.
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