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Extracting weld penetration information in tungsten—inert gas welding
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2002Weld pool images provide abundant information about weld penetration while the weld penetration has a close relationship with the back weld width. The key to achieving weld penetration control is to establish a model describing the relationship between the front-side geometrical parameters of the weld pool and the back weld width with sufficient ...
J Gao, C Wu
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Thorium exposure during tungsten inert gas welding with thoriated tungsten electrodes
Radiation Protection Dosimetry, 2003The exposure to 232Th from TIG welding with thoriated electrodes has been determined at five different workshops. Welding with both alternating and direct current was investigated. The exposure levels of 232Th were generally below 10 mBq m(-3) in the breathing zone of the welders.
T, Gäfvert, J, Pagels, E, Holm
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Surface Review and Letters, 2015
Surface contamination usually occurs during welding processing and it affects the welds quality largely. However, the formation of such contaminants has seldom been studied. Effort was made to study the contaminants caused by metal inert gas (MIG) welding and tungsten inert gas (TIG) welding processes of aluminum alloy, respectively.
LEI ZHAO +4 more
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Surface contamination usually occurs during welding processing and it affects the welds quality largely. However, the formation of such contaminants has seldom been studied. Effort was made to study the contaminants caused by metal inert gas (MIG) welding and tungsten inert gas (TIG) welding processes of aluminum alloy, respectively.
LEI ZHAO +4 more
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WELDING, TUNGSTEN ARC, INERT GAS (GTAW Method)
2017<div class="section abstract"> <div class="htmlview paragraph">This specification defines the requirements for joining metals and alloys using the gas-tungsten-arc welding (GTAW) methods.</div> </div>
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A-TIG (activated flux tungsten inert gas) welding: – A review
Materials Today: Proceedings, 2021Abstract TIG welding faces low weld penetration as the major challenge which ultimately limits the productivity of the process. To mitigate this challenge and utilize the peerless benefits of TIG welding, a technique known as Activated flux tungsten inert gas (A-TIG) welding has been developed and is being widely researched upon.
Sudhanshu Ranjan Singh, Pradeep Khanna
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Modeling, optimization and classification of weld quality in tungsten inert gas welding
International Journal of Machine Tools and Manufacture, 1999In this paper, a neural network is used to construct the relationships between welding process parameters and weld pool geometry in tungsten inert gas (TIG) welding. An optimization algorithm called simulated annealing (SA) is then applied to the network for searching the process parameters with an optimal weld pool geometry.
Tarng, Y.S., Tsai, H.L., Yeh, S.S.
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Activating flux tungsten inert gas welding for enhanced weld penetration
Journal of Manufacturing Processes, 2016Abstract The flux assisted GTAW or A-TIG process developed at the Paton Welding Institute in 1960. Despite capable of offering a penetration up to 5–6 mm in a single pass weld, it could not find enough space in industrial applications, primarily due to few inherent unfavorable features: (a) two-step nature of the process, (b) poor weld-bead and (c ...
R.S. Vidyarthy, D.K. Dwivedi
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Effect of welding current on the dimensions of bead in tungsten inert gas welding process
Materials Today: Proceedings, 2021Generally, the joining of parts in our industrial life is very important. The industries use joints to increase the length or surfaced area for their requirements and these requirements can be fulfilled generally by joints. Welding is one of the best methods of making joints in which the tungsten inert gas welding is an important method in the welding ...
Rudra Pratap Singh, Manoj Kumar Agrawal
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Behavior of the Fusion Hole in Tungsten Inert Gas Thin-Plate Welding
IEEE Robotics and Automation Letters, 2019One-side welding with back formation technique is widely used in pressure vessels and the pressure piping industry. Welders provide high importance to the role of the fusion hole in this type of welding. Therefore, the formation and instability of the fusion hole should be studied to realize the welding automation of the one-side welding with back ...
Yongjian Guo +3 more
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Joining titanium materials with tungsten inert gas welding, laser welding, and infrared brazing
The Journal of Prosthetic Dentistry, 1995Titanium has a number of desirable properties for dental applications that include low density, excellent biocompatibility, and corrosion resistance. However, joining titanium is one of the practical problems with the use of titanium prostheses. Dissolved oxygen and hydrogen may cause severe embrittlement in titanium materials.
R R, Wang, G E, Welsch
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