Thermoforming
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Deep draw ratio limitation of PLA vacuum forming
Fenómeno del problema
The vacuum deep draw ratio of PLA sheet is limited and cannot reach the level of PP.
Análisis de la causa
The ductility of PLA is limited, and the deep draw ratio is <2:1, otherwise it breaks.
Solución
Select high-ductility PLA grades; raise the sheet temperature; use an auxiliary plug.
Conclusión clave
The deep draw ratio of PLA is a design constraint.
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