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  1. berg380

    Thermoforming bend angle error PA11

    Hi people, I am trying to bend some PA11 tube material OD=1mm ID=0.3mm Weird thing is that the bends are showing a forward bending relaxation behavior which continouse for 3 days. The mold angle is 90deg (inside angle). After thermoforimg for 10 mins at 160degC and rapid cooling (under 5 mins)...

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