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Event-Based Temperature Control for Machining Using MTConnect

[+] Author Affiliations
Subhasish Malik, Mark D. Bedillion

South Dakota School of Mines and Technology, Rapid City, SD

Paper No. IMECE2012-86360, pp. 629-637; 9 pages
doi:10.1115/IMECE2012-86360
From:
  • ASME 2012 International Mechanical Engineering Congress and Exposition
  • Volume 4: Dynamics, Control and Uncertainty, Parts A and B
  • Houston, Texas, USA, November 9–15, 2012
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4520-2
  • Copyright © 2012 by ASME

abstract

MTconnect is a newly-developed standardized communications protocol that is designed to make it easier to collect, transmit and leverage data from shop floor machine tools. However, MTConnect is a read-only architecture, i.e., it is currently used for monitoring and not control of manufacturing processes. This paper develops an event-based real-time control architecture using MTConnect and demonstrates feasibility on tool-tip temperature control of a small-scale CNC prototype machine. Analytical modeling provides a link between tool feed rate and tool-tip temperature. This model, which is verified through experiments, is used to develop both periodic sampling and eventbased PID control laws. The periodic PID controller is implemented on device to serve as a performance benchmark. Its performance is compared, both in simulation and experimentally, to an MTConnect-enabled event-based controller operating over the web.

Copyright © 2012 by ASME

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