This research paper describes a specifically constructed Variant A continuous dieless wire-drawing machine to experimentally determine the principal processing parameters for dieless wire drawing using extra low interstitial Ti–6Al–4V wire alloy. It was experimentally determined that the process was limited by the ratio of the ingoing and outgoing axial velocities, also known as the reduction ratio and influenced by the primary drawing velocity . Reductions of up to 36% per pass wire in cross-sectional area (CSA) were achieved. However, a direct relationship between the wire diameter variation and an increase in overall achievable reduction in CSA was observed. The separation distance between the wire heating and cooling devices was identified as one of the principal governing process parameters. It was found that processing in an inert gas environment led to an increased reduction on CSA of approximately 3% per pass when compared with processing in compressed air. This was attributed to a reduction in surface oxidation and stress cracking. The experimentally determined results showed excellent agreement with a proposed mathematical model. It was also determined that the calculated strain rate for the process fell within the boundaries of previously determined strain rates for this particular alloy. The successful operation of this experimental machine effectively illustrates the possible commercial validity of continuous dieless wire drawing.
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April 2009
Research Papers
An Experimental Approach to Continuous Dieless Wire Drawing (Variant A) Using ELI Ti–6Al–4V Alloy
M. D. Naughton,
M. D. Naughton
Department of Manufacturing and Operations Engineering,
University of Limerick
, Limerick, Ireland
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P. Tiernan
P. Tiernan
Materials and Surface Science Institute (MSSI),
e-mail: peter.tiernan@ul.ie
University of Limerick
, Limerick, Ireland
Search for other works by this author on:
M. D. Naughton
Department of Manufacturing and Operations Engineering,
University of Limerick
, Limerick, Ireland
P. Tiernan
Materials and Surface Science Institute (MSSI),
University of Limerick
, Limerick, Irelande-mail: peter.tiernan@ul.ie
J. Eng. Mater. Technol. Apr 2009, 131(2): 021005 (10 pages)
Published Online: March 9, 2009
Article history
Received:
March 7, 2008
Revised:
December 1, 2008
Published:
March 9, 2009
Citation
Naughton, M. D., and Tiernan, P. (March 9, 2009). "An Experimental Approach to Continuous Dieless Wire Drawing (Variant A) Using ELI Ti–6Al–4V Alloy." ASME. J. Eng. Mater. Technol. April 2009; 131(2): 021005. https://doi.org/10.1115/1.3078304
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