Results 171 to 180 of about 8,844 (222)

Comparison of energy acted on workpiece among Twin-body Plasma Arc Welding, Non-transferred Plasma Arc Welding and Plasma Arc Welding

Journal of Manufacturing Processes, 2016
Abstract A novel welding process named Twin-body Plasma Arc Welding (TPAW) is proposed in this paper. The main arc in TPAW is established between tungsten electrode and guide electrode. In comparison with Non-transferred Plasma Arc Welding (NPAW) where one of the arc terminal is the nozzle, the workpieces are both not connected into the circuit loop,
Ruiying Zhang, Fan Jiang, Shujun Chen
openaire   +1 more source

Metal Transfer and Arc Plasma in Gas Metal Arc Welding

Journal of Heat Transfer, 2006
This article analyzes the transient complex heat transfer and fluid flow in molten metal and arc plasma during the gas metal arc welding process. The model predicts the formation, growth, detachment, and transfer of droplets from the tip of a continuously fed electrode under the influences of several competing forces including gravity, electromagnetic ...
Hu, Junling, Tsai, Hai-Lung
openaire   +1 more source

High deposition additive manufacturing by tandem plasma transferred arc welding

2021
Plasma Transferred Arc Welding (PTA) is an important method for efficient component coating. In that field PTA has advantages, such as the free integration and mixing of a variety of filler materials as well as the largely independent material supply in relation to the energy input. Increasingly, the market is being driven by the challenge of providing
Ertugrul, G��khan, H��lsig, Andre, Kusch, Mario   +2 more
openaire   +1 more source

Characterization of arc during hardfacing in plasma transfer arc welding

Canadian Metallurgical Quarterly, 2015
In situ high temperature measurements of plasma transferred arc welding (PTAW) deposition of overlays are required in order to optimize the process. Infrared (IR) cameras have the capability for making these measurements. The reliability of the quantitative data is often in question due to changes in emissivity with temperature, surface condition and ...
T. B. Wolfe, H. Henein
openaire   +1 more source

Effect of plasma main arc on droplet transfer in skew-coupling arc welding

Journal of Materials Processing Technology, 2020
Abstract A method of controlling droplet transfer by plasma arc was proposed to solve the problem that cathode spot force hindered the transition of cathode droplet under high current of twin-wire indirect arc (TWIA) in skew-coupling arc (SCA) welding. The effects of the plasma arc on droplet transfer were analyzed from the perspectives of plasma arc
Shanwen Dong, Bin Xu, Zhenyang Lu, Shujun Chen, Fan Jiang   +4 more
openaire   +1 more source

Plasma Transferred Arc Welding—Modeling and Experimental Optimization

Journal of Thermal Spray Technology, 2006
Plasma transferred arc (PTA) welded coatings are used to improve surface properties of mechanical parts. Advantages are the high reliability of the process and the low dilution of substrate and coating material. Processing of surfaces by PTA welding is restricted at the time to flat horizontal position.
J. Wilden, J.P. Bergmann, H. Frank
openaire   +1 more source

Plasma Transfer Arc Welding - Novel Method in Tool Reconditioning

SAE Technical Paper Series, 2011
<div class="section abstract"><div class="htmlview paragraph">Manufacturing processes play a major role not only in the attainment of high product quality, but also in the reduction of manufacturing and consequently also product costs. In manufacturing industries tools used are of major importance in this respect, as it is very expensive ...
M. Charles, T. Sundararajan, S. A. Vimalathithan, V. Sudarsan   +3 more
openaire   +1 more source

Droplet transfer behaviour in twin-body plasma arc welding

Journal of Manufacturing Processes, 2019
Abstract A novel process, named twin-body plasma arc welding (PAW), is proposed in this study. In this novel process, the wire is used as introduced electrode to adjusting the energy distribution between base metal and droplet, and a strong plasma flow force is applied to the droplets.
Ruiying Zhang, Fan Jiang, Shujun Chen
openaire   +1 more source

Power transferred to the filler wire in twin-body plasma arc welding

Journal of Manufacturing Processes, 2021
Abstract In this paper, a heat transfer model of the filler wire in twin-body plasma arc welding (TPAW) was established. The total power transferred to the filler wire included anode effect power, resistance power and plasma arc power. The influences of the wire current, wire extension and plasma gas flow rate on the power transferred to the filler ...
Ruiying Zhang, Fan Jiang, Shujun Chen
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Recent status of overlay by plasma transferred arc welding technique

International Journal of Materials and Product Technology, 2018
The aspects of investigation on surface characterisation and role of material for various applications of petroleum, gas refineries, marine, aerospace, etc. have spurred in this era. The usefulness of surface protection techniques, materials, their performances and characteristics for particular medium is important to study, as it is vital to employ a ...
D.D. Deshmukh, V.D. Kalyankar
openaire   +1 more source