Results 251 to 260 of about 193,238 (303)
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1993
Abstract Plasma arc welding (PAW) can be defined as a gas-shielded arc welding process where the coalescence of metals is achieved via the heat transferred by an arc that is created between a tungsten electrode and a workpiece. This article discusses the melt-in mode and the keyhole mode of the PAW process, as well as the advantages and ...
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Abstract Plasma arc welding (PAW) can be defined as a gas-shielded arc welding process where the coalescence of metals is achieved via the heat transferred by an arc that is created between a tungsten electrode and a workpiece. This article discusses the melt-in mode and the keyhole mode of the PAW process, as well as the advantages and ...
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Robotic ARC Welding and Plasma ARC Cutting
SAE Technical Paper Series, 1987<div class="htmlview paragraph">Robotic arc welding and plasma arc cutting, in general, require precise positioning of the torch relative to the workpiece. To this end, a 1-dimensional non-contact sensor was applied to two assembly plant tasks and found to perform to requirements while maintaining the system's cost effectiveness.</div> < ...
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IEEE Conference Record - Abstracts. 1999 IEEE International Conference on Plasma Science. 26th IEEE International Conference (Cat. No.99CH36297), 2003
Summary form only given. Plasma arc cutting is a widely used method for cutting metals. The availability of small portable units using compressed air as plasma gas makes these devices suitable for use in workshops. However, the need for compressed air means less flexibility in field applications.
H. Pauser, J. Laimer, H. Stori
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Summary form only given. Plasma arc cutting is a widely used method for cutting metals. The availability of small portable units using compressed air as plasma gas makes these devices suitable for use in workshops. However, the need for compressed air means less flexibility in field applications.
H. Pauser, J. Laimer, H. Stori
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XXIst International Symposium on Discharges and Electrical Insulation in Vacuum, 2004. Proceedings. ISDEIV., 2005
Comparative performance and stability properties of a cathodic vacuum arc plasma source based on dc arc discharge with a magnetic confinement of a cathode spot and plasma stream focusing are presented in case with grid insert placed within the hollow anode and without it.
I.I. Aksenov +3 more
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Comparative performance and stability properties of a cathodic vacuum arc plasma source based on dc arc discharge with a magnetic confinement of a cathode spot and plasma stream focusing are presented in case with grid insert placed within the hollow anode and without it.
I.I. Aksenov +3 more
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1993
Abstract Plasma arc cutting (PAC) is an erosion process that utilizes a constricted arc in the form of a high-velocity jet of ionized gas to melt and sever metal in a narrow, localized area. This article discusses the process description, equipment, gases, operating sequence, process considerations, and applications of PAC.
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Abstract Plasma arc cutting (PAC) is an erosion process that utilizes a constricted arc in the form of a high-velocity jet of ionized gas to melt and sever metal in a narrow, localized area. This article discusses the process description, equipment, gases, operating sequence, process considerations, and applications of PAC.
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2002
The thermal plasma generator, generally known as the plasma torch, is already in practical use in various fields of the metals industry, such as welding, cutting and metal spraying. In addition, a number of studies have been made for the utilization of thermal plasmas in smelting and melting since the early stages of its development.
K. Mimura, M. Isshiki
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The thermal plasma generator, generally known as the plasma torch, is already in practical use in various fields of the metals industry, such as welding, cutting and metal spraying. In addition, a number of studies have been made for the utilization of thermal plasmas in smelting and melting since the early stages of its development.
K. Mimura, M. Isshiki
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International Journal of Material Forming, 2009
In the machine manufacturing industries, cost estimation and costing are critical. In order to obtain maximum of technical and economical efficiency, in these cases, very important is to estimate the production costs and the production rates. Knowledge of investment and operating costs represents a base for investment in plasma arc cutting machine. For
S. M. Ilii, M. Coteaţă
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In the machine manufacturing industries, cost estimation and costing are critical. In order to obtain maximum of technical and economical efficiency, in these cases, very important is to estimate the production costs and the production rates. Knowledge of investment and operating costs represents a base for investment in plasma arc cutting machine. For
S. M. Ilii, M. Coteaţă
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Measurements of Welding Arcs and Plasma Arcs
1991Welding and plasma arcs are among the most powerful emitters of optical radiation. The temperature of welding and plasma arcs is extremely high and the ultraviolet output is therefore potentially hazardous. As is well known the visible radiation emitted by these arcs is blinding, and several cases of severe retinal burns are known to have caused ...
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FROM TRANSFERRED ARC TO PLASMA TORCHES
High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes), 2005Thermal plasma generated either by transferred arc or by plasma torches are involved in many industrial processes including, for example, cutting, welding, powder synthesis or coating elaboration by plasma spray techniques. The common feature is that electrical energy is converted into thermal energy, which must be transferred differently following the
Coudert, Jean-François +3 more
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Modeling of arc force in plasma arc welding
Transactions of Tianjin University, 2008A three-dimensional mathematical model for the transferred-type argon arc was developed to describe arc force on the anode surface. The software ANSYS was employed to solve the model. The model includes a part of torch and tungsten electrode to achieve more reasonable results. The arc temperature and flow fields were derived.
Zhonglin Gao +3 more
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