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Open AccessArticle

The Effect of Process Parameters on Twin Wire Arc Spray Pattern Shape

Multiscale Metallurgical Science and Technology, Sandia National Laboratories, P.O. Box 5800, MS1130, Albuquerque, NM 87185, USA
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Academic Editor: Alessandro Lavacchi
Coatings 2015, 5(2), 115-123; https://doi.org/10.3390/coatings5020115
Received: 5 March 2015 / Revised: 7 April 2015 / Accepted: 16 April 2015 / Published: 20 April 2015
(This article belongs to the Special Issue Trends in Coatings and Surface Technology—Feature Papers)
A design of experiments approach was used to describe process parameter—spray pattern relationships in the Twin Wire Arc process using zinc feed stock in a TAFA 8835 (Praxair, Concord, NH, USA) spray torch. Specifically, the effects of arc current, primary atomizing gas pressure, and secondary atomizing gas pressure on spray pattern size, spray pattern flatness, spray pattern eccentricity, and coating deposition rate were investigated. Process relationships were investigated with the intent of maximizing or minimizing each coating property. It was determined that spray pattern area was most affected by primary gas pressure and secondary gas pressure. Pattern eccentricity was most affected by secondary gas pressure. Pattern flatness was most affected by primary gas pressure. Coating deposition rate was most affected by arc current. View Full-Text
Keywords: wire arc spray; spray pattern shape; zinc wire arc spray; spray pattern shape; zinc
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Horner, A.L.; Hall, A.C.; McCloskey, J.F. The Effect of Process Parameters on Twin Wire Arc Spray Pattern Shape. Coatings 2015, 5, 115-123.

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