Heater power control for multi-material, variable speed Automated Fibre Placement

Mattia Di Francesco, Laura Veldenz, Giuseppe Dell'Anno, Kevin Potter

Research output: Contribution to journalArticle (Academic Journal)peer-review

27 Citations (Scopus)
524 Downloads (Pure)

Abstract

Abstract
Automated Fibre Placement requires accurate control of the heater power to deposit the material at appropriate temperatures throughout the process. This paper presents a simple semi-empirical thermal model of the process which correlates the heater power and the layup speed with the substrate surface temperature. The deposition temperature was measured over a range of heater powers and layup speeds. The experimental data is used to define and validate a semi-empirical thermal model for two classes of materials used in conjunction with a diode laser: carbon fibre reinforced thermoplastics and bindered dry fibres. This enables open-loop, speed dependent heater power control, based on defining and programming the speed dependent heater power function in the machine controls.
Original languageEnglish
JournalComposites Part A: Applied Science and Manufacturing
Early online date19 Jun 2017
DOIs
Publication statusE-pub ahead of print - 19 Jun 2017

Keywords

  • A. Polymer-matrix composites (PMCs)
  • B. Thermal properties
  • C. Process Modelling
  • D. Automated fibre placement (AFP)

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