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General design rules for vacuum forming dies (3)

Update:25-05-2019
Summary:

3、The size is stable, in the molding process, the surfa […]

3、The size is stable, in the molding process, the surface of the plastic part in contact with the mold is better than the dimensional stability of the part leaving the mold. If the material thickness is required to change in the future due to the material stiffness, it may result in the conversion of the male mold to the female mold. The dimensional tolerance of the plastic part cannot be less than 10% of the shrinkage rate.

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