PMMA Molding< WARP>

[BaluA]

Hi,

i molding a PMMA part and i get a lot of warp on the part. I heard, an over flow cavity ( like you use on the gas assist ) will help.

the part has a uniform wall thickness

What is your opinion ?

Thank you

EF

[Jendalf]

Hi,

picture, injection point position, general parameters?

You can check moldflow, what the shrinkage/warpage study says, how the temperature map lookslike.

Here the help is usually only the part geometry change, or injection position change.

J

[rickbatey]

We really don’t have enough information to help you root cause the issue. You could be running mold cold or melt too hot/cold or even the pack/hold phase incorrectly.
Rick