Material Drying
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PETG ultrasonic welding insufficient strength
Fenómeno do problema
After ultrasonic welding of PETG products, the welding strength is low and they easily separate at the weld.
Análise das causas
Ultrasonic welding parameters improper (amplitude, pressure, time not suitable), welding surface design poor, product moisture absorption affects welding.
Solução
Optimize welding parameters (amplitude 60-80%, pressure 0.2-0.4MPa); optimize energy director design; dry the products before welding.
Conclusão principal
PETG ultrasonic welding requires optimized welding parameters and joint design.
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