Electrically assisted forming is a technique whereby metal is deformed while simultaneously undergoing electric current flow. Using this process, electric current level becomes a new degree of freedom for process control. In this work, we present some alternative control architectures allowing for new avenues of control using such a process. The primary findings are architectures to allow for forming at constant force and forming at constant stress levels by modulating electric current to directly control material strength. These are demonstrated in a tensile forming operation, and found to produce the desired results. Combining these control approaches with previous and contemporary efforts in modeling of the process physics will allow for system identification of material response properties and model-based control of difficult-to-observe process parameters such as real time temperature gradients.
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Greenville,
Clemson University,
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December 2013
Research-Article
Alternative Control of an Electrically Assisted Tensile Forming Process Using Current Modulation
Joshua J. Jones,
Greenville,
Joshua J. Jones
Koyo Bearings
Greenville,
SC 29607
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Laine Mears
Clemson University,
Laine Mears
Department of Automotive Engineering
,Clemson University,
Greenville, SC 29607
Search for other works by this author on:
Joshua J. Jones
Koyo Bearings
Greenville,
SC 29607
Laine Mears
Department of Automotive Engineering
,Clemson University,
Greenville, SC 29607
Manuscript received March 29, 2013; final manuscript received September 12, 2013; published online November 5, 2013. Assoc. Editor: Yung Shin.
J. Manuf. Sci. Eng. Dec 2013, 135(6): 061004 (8 pages)
Published Online: November 5, 2013
Article history
Received:
March 29, 2013
Revision Received:
September 12, 2013
Citation
Jones, J. J., and Mears, L. (November 5, 2013). "Alternative Control of an Electrically Assisted Tensile Forming Process Using Current Modulation." ASME. J. Manuf. Sci. Eng. December 2013; 135(6): 061004. https://doi.org/10.1115/1.4025566
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