Material Drying
7 visualizações
Poor ABS ultrasonic welding
Fenómeno do problema
After ultrasonic welding of two ABS parts, the strength is low, the weld line flashes, or cold welds appear, and the welding quality is unstable.
Análise das causas
The welding surface has mold release agent/oil; welding energy, amplitude, and holding time parameters are improper; the product's welding rib design is unreasonable; when the moisture content is high, the interface vaporizes and produces bubbles and cold welds.
Solução
①Clean the welding surface; ②optimize the amplitude—pressure—time parameters and do DOE; ③design the energy director according to the material supplier's recommendations; ④ensure the product is dry; ⑤do strength verification after welding.
Conclusão principal
For ABS ultrasonic welding, 'clean the surface first, then adjust parameters, then check the structure': welding surface cleanliness is the premise, parameter matching is the core, and energy director design is the foundation; moisture causes cold welds, and drying is equally important.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!