CHARACTERIZATION OF THE WIRE ARC SPRAY PROCESS VIA IMAGE ANALYSIS, IN-FLIGHT PARTICLE CHARACTERISTICS AND COATING PROPERTIES

2009 ◽  
Vol 13 (1) ◽  
pp. 1-23
Author(s):  
Marie-Pierre Planche ◽  
Hanlin Liao ◽  
Ghislain Montavon ◽  
Christian Coddet
Keyword(s):  
Image Analysis ◽  
Wire Arc Spray ◽  
Coating Properties ◽  
Spray Process ◽  
Arc Spray ◽  
Particle Characteristics ◽  
The Wire

Investigation about the Chrome Steel Wire Arc Spray Process and the Resulting Coating Properties

2007 ◽  
Vol 16 (5-6) ◽  
pp. 759-767 ◽  
Author(s):  
J. Wilden ◽  
J. P. Bergmann ◽  
S. Jahn ◽  
S. Knapp ◽  
F. van Rodijnen ◽  
...  
Keyword(s):  
Steel Wire ◽  
Wire Arc Spray ◽  
Coating Properties ◽  
Chrome Steel ◽  
Spray Process ◽  
Arc Spray

Study on the Arc Shape in the Wire Arc Spray Process

2010 ◽  
Vol 154-155 ◽  
pp. 109-112
Author(s):  
Jia Ying Zhang ◽  
Bin Shi Xu
Keyword(s):  
High Speed ◽  
Short Circuit ◽  
Digital Camera ◽  
Wire Arc Spray ◽  
Properties Of Coatings ◽  
Spray Process ◽  
Arc Spray ◽  
Arc Shape ◽  
The Wire ◽  
Metal Wires

Being the heat source of arc spray, the characteristics of arc are of importance for properties of coatings. In this paper, the arc shape in the wire arc spray process was analyzed in the aid of high-speed digital camera. It is testified that the arc has the elliptical shape. This type of shape is favorable for heating the metal particles. The arc isn’t always in burning state and it is extinguished frequently. There are two kinds of reasons for arc extinguish. The first one is that the two metal wires short circuit. The second one is that the imperfect melted metal stretches the arc long, and then this part melted and broken away from the metal wires’ tips. If we can control the metal wires state, the properties of coatings will be improved.

A three-dimensional model of the wire-arc spray process and its experimental validation

2008 ◽  
Vol 200 (1-3) ◽  
pp. 94-105 ◽  
Author(s):  
Rodolphe Bolot ◽  
Marie-Pierre Planche ◽  
Hanlin Liao ◽  
Christian Coddet
Keyword(s):  
Experimental Validation ◽  
Three Dimensional ◽  
Wire Arc Spray ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Spray Process ◽  
Arc Spray ◽  
The Wire

Effect of Nozzle Configuration, Gas Pressure, and Gas Type on Coating Properties in Wire Arc Spray

1999 ◽  
Vol 8 (4) ◽  
pp. 565-575 ◽  
Author(s):  
X. Wang ◽  
J. Heberlein ◽  
E. Pfender ◽  
W. Gerberich
Keyword(s):  
Gas Pressure ◽  
Wire Arc Spray ◽  
Coating Properties ◽  
Arc Spray ◽  
Nozzle Configuration

Diagnostic Development for Control of Wire-Arc Spraying

1997 ◽  
Author(s):  
J. Sheard ◽  
J. Heberlein ◽  
K. Stelson ◽  
E. Pfender
Keyword(s):  
Molten Metal ◽  
High Speed ◽  
Metal Droplet ◽  
Arc Spraying ◽  
Voltage Fluctuations ◽  
Arc Voltage ◽  
Spray Process ◽  
Arc Spray ◽  
Labview Software ◽  
The Wire

Abstract This research has focused on characterization of the wire arc spray process with the goal of achieving improved process controls. Arc voltage and current traces have been analyzed on-line using an oscilloscope and a personal computer with LabView software. The characteristic features of the arc voltage fluctuations are correlated with the molten metal droplet formation process using a high speed Laser Strobe video system operating in synchronization with the oscilloscope trigger. Voltage minima occur when larger globules of molten metal leave the wire tip. Analysis of the voltage fluctuations indicate that they are neither random nor periodic, and that they can be described based on chaos theory. This approach may be used for achieving a further understanding of the dynamic nature of the process, and for the development of control algorithms.

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