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Joint Design for Vibration Welding

by Alex Lee of MP Sonic

Mob/Wechat/WhatsApp: +86-15918523336

Email: alex.lee@mp-sonic.com; alexlee2696@163.com

Join design for vibration welding concept:

1. Measurement of welding rib;

2. The parts holding design at vibration oscillation direction;
3. At least 1/2 width of joining area should be supported by vibration welding fixture;
4. At least 0.8mm space for the moving distance of oscillation (120Hz:1.8mm);
5. Reinforcement at vibration direction:(0.8mm * 2) + α(above2mm)
Side: aobve1mm;
Reinforcement for 120Hz welding : about twice of that for 240Hz welding;
6. Space for melting flow: melting volume*20~30%。
7. Design angle reinforcement to avoid shake at vibration direction;
8. Consider the deformation after molding;

9. Ensure that the surface slope at vibration direction no over than 10 degree.


I. Welding Design Measurement


Vibration Welding Design Measurement



II. Bevel Angle of Welding Surface


Bevel Anagle for Vibration Welding



III. Welding Design Construction

Basic Joint Design



IV. Types of Welding Design

Vib joint Design



V. Support Design for Vibrtion Welding

Welding Support for Vibration Welding



VI. Usually Applied Joint Design for Vibration Welding

vibration joint Desing


Vibration Welding Design


Vibration Thermoplastic Welding

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