My last three extrusion articles in PlasticsToday dealt with inpush, getting the material into the extruder (see links at the end of this article). Now I'll focus on outpush, or output as it's more ...

I teach a one-day Intro to Extrusion seminar, and many of my participants are new to extrusion. Therefore, I explain the basic principles of screws for thermoplastics. That’s good for the newbies, but ...