0
research-article

Control of Final Part Dimensions in Polymer Extrusion Using a Variable-Geometry Die

[+] Author and Article Information
Lawrence Funke

Member of ASME, Mechanical Engineering Department, Ohio Northern University, Ada, OH 45810
l-funke@onu.edu

James Schmiedeler

Fellow of ASME, Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556
schmiedeler.4@nd.edu

1Corresponding author.

ASME doi:10.1115/1.4039652 History: Received August 11, 2017; Revised March 08, 2018

Abstract

Parts made via polymer extrusion are currently limited to a constant cross section. Additionally, the process is difficult to control, so desired final part dimensions are often achieved via a manual trial-and-error approach to parameter adjustment. This work seeks to increase the capability of polymer extrusion by using iterative learning control (ILC) to regulate the final width of a rectangular part through changing the width of a simple variable-geometry die. Simulation results determine the appropriateness of the learning algorithm and gains to be used in experiment. A prototype die on a production extruder was used to demonstrate the effectiveness of the approach. These experiments achieved automated control over both gross change in shape and final part dimension when the puller speed was held constant, which has not been seen previously in the literature.

Copyright (c) 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In