TY - JOUR
T1 - A Study of the Efficacy of Flame Electrical Resistance for Standoff Measurements During the Oxyfuel Cutting Process
AU - Martin, Christopher R.
AU - Untaroiu, Alexandrina
AU - Xu, Kemu
AU - Raman, S. M.Mahbobur
N1 - Funding Information:
The work presented here was made possible by award 1900698 from the National Science Foundation. This work was also supported in part by a donation of steel by Curry Rail Services Inc., Hollidaysburg, PA.
Publisher Copyright:
Copyright © 2022 by ASME.
PY - 2022/7
Y1 - 2022/7
N2 - This is a study of the suitability of preheat flame electrical resistance as a potential method for measuring the standoff distance an oxyfuel cutting torch and a work piece. Careful scrutiny of forty-seven individual experiments demonstrate that when cut quality is good, there is a linear repeatable relationship between the two with uncertainty about ±0.3 mm (0.015 in.). As the cut quality degrades, the formation of top-edge dross reduces the electrical path length in the flame, and momentary reduction in the reaction rate in the kerf reduces the free electrons in the flame, causing increases in flame resistance. In these conditions, measurement uncertainty reduces to ±1 mm (0.040 in.) or worse.
AB - This is a study of the suitability of preheat flame electrical resistance as a potential method for measuring the standoff distance an oxyfuel cutting torch and a work piece. Careful scrutiny of forty-seven individual experiments demonstrate that when cut quality is good, there is a linear repeatable relationship between the two with uncertainty about ±0.3 mm (0.015 in.). As the cut quality degrades, the formation of top-edge dross reduces the electrical path length in the flame, and momentary reduction in the reaction rate in the kerf reduces the free electrons in the flame, causing increases in flame resistance. In these conditions, measurement uncertainty reduces to ±1 mm (0.040 in.) or worse.
UR - http://www.scopus.com/inward/record.url?scp=85144615537&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85144615537&partnerID=8YFLogxK
U2 - 10.1115/1.4053216
DO - 10.1115/1.4053216
M3 - Article
AN - SCOPUS:85144615537
SN - 1087-1357
VL - 144
JO - Journal of Manufacturing Science and Engineering
JF - Journal of Manufacturing Science and Engineering
IS - 7
M1 - 071010
ER -