Influence of the flow rate on the die swell for polymer micro coextrusion process

A numerical model of #polymer double-layer microtube #coextrusion shows velocity differences between inner and outer melts cause wall-thickness nonuniformity, while gas-assisted coextrusion improves shape accuracy but cannot remove this imbalance.
e-Polymers: doi.org/10.1515/epol...

SLM Co-extruding Hotend Makes Poopless Prints Everyone loves colourful 3D prints, but nobody loves prime towers, “printer poop” and all the plastic waste associated with most multi-material setups. Over the years, there’s been no shortage of …read more