Common Molding Defect: Jetting

Injection molding polymer through small gates creates complex three-dimensional fluid flow behaviors. Jetting occurs in injection molding when polymer material is injected through a nozzle, runner, or gate at high velocity, into open, thicker areas, without forming contact with the mold wall.

[@unidentifiedhandle]

Great video, it would have been perfect if example was shown to fully understand the final results! Thanks!

[@KruseTraining]

Great point!

[@jamieevans6395]

You get this a lot with abs if you're injecting onto a flat surface hence why you should inject onto a wall of the component

[@FratDede]

So what is your recommendations?

[@jamieevans6395]

You will have to profile the first stage to try and control it and putting tool temps up will help