Plastic design, mold design, plastic materials selection and injection parameters are the 4 keys in affecting final plastic part deformation. The plastic part design is dominated the others.
With uneven wall thickness and differential shrinkage at different locations:
- mold design and raw plastic materials will make up a little effect,
- injection molding parameters setting will then be more demanding for reducing deformation of parts under constant part weight and tool gating size by means of
@ lower mold temperature
@ longer cooling time
@ lower holding pressure