Walter S. Smith
Extrusion Applications Engineer
Overview of Extruders and Screw Design
Plastics 101's - Session 3
Monday, October 11, 2021
1:00 p.m. to 1:45 p.m.
Presentation Description:
This presentation will provide an overview of the different type of extruders, screw designs, feed block/barrel designs used in blow molding applications using illustrations and diagrams.
- Screw designs for both smooth bore and grooved feed extrusion
- Feed throat / barrel design for grooved feed extrusion
- Feed throat / barrel design for smooth bore extrusion
Speaker Biography:
Walter Smith has worked for New Castle/Xaloy Industries for 28 years as a design engineer, designing extrusion, injection screws, and complete extrusion systems. Walt has now worked for Nordson PPS/Xaloy LLC, for the last 8 years as a Senior Extrusion Application Engineer.
He has authored and co-authored many technical papers and presentations for SPE. Walter has designed many screws for extrusion and injection molding applications, for a wide variety of resins and processes. He holds co-patents in the area of extrusion screw design, and mixer design.
Walter has been a member of SPE since 1990 and has served on the board of directors of the Injection Molding Division of SPE.
