Results 221 to 230 of about 1,605 (261)

Modeling of Weld Beads for Laser-GMA Hybrid Welding

Key Engineering Materials, 2007
For laser-GMA hybrid welds, the relationship between the process parameters and bead shapes was investigated by using the experimental design and the non-linear regression. The weld beads were fitted by two quadratic functions. By the statistical analysis, the primary bead was mainly affected by GMA welding parameters and the root bead was mainly by ...
Cheol Hee Kim, Nam Hyun Kang, Hyun Byung Chae, Jeong Han Kim   +3 more
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Temper-Bead Weld by Underwater Laser Beam Welding

Volume 1: Plant Operations, Maintenance, Engineering, Modifications and Life Cycle; Component Reliability and Materials Issues; Next Generation Systems, 2009
In repair welding for nuclear reactor vessel, low alloy steels are affected by heat input during welding process. The conventional repair welding for wall steel constructions requires post weld heat treatment (PWHT) to achieve the desired microstructure properties.
Takeshi Fukuda, Rie Sumiya, Wataru Kono, Nobuichi Suezono, Masataka Tamura, Itaru Chida   +5 more
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Influence of Welding Parameter on Bead Geometry of Weld Metal in Submerged Arc Welding

SSRN Electronic Journal, 2020
Submerged arc welding is generally used for fabrication large diameters line pipes, pressure vessels and wind turbines due to its high deposition rates, high-quality welds, ease of automation and low operation skills necessities. Submerged arc welding is characterized by a large number of process parameters influencing the performance of the output ...
Sikandar Thakur, Geetesh Goga, Avtar Singh   +2 more
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Seam tracking and welding bead geometry analysis for autonomous welding robot

2017 Latin American Robotics Symposium (LARS) and 2017 Brazilian Symposium on Robotics (SBR), 2017
Welding is a process recognized by the laborious work and hazardous work environment it takes place, but it is an important process in different industrial scenarios, like the shipbuilding industry. The use of robots has been increasing in recent years, reducing the human interference necessary for the process.
Luciane B. Soares, Átila Astor Weis, Ricardo Nagel Rodrigues, Paulo Lilles Jorge Drews Junior, Bruna Guterres, Silvia S. C. Botelho, Nelson Duarte Filho   +6 more
openaire   +1 more source

Penetration Control of Bead on Plate Welding

2020
The closed-loop control algorithm plays an important role to ensure full penetration during welding.
Zongyao Chen, Zhili Feng, Jian Chen
openaire   +1 more source

Weld bead placement system for multipasswelding

IEE Proceedings - Science, Measurement and Technology, 1996
A transputer-based laser triangulation vision system has been developed for use with automated tungsten inert gas (TIG) welding. The object of the vision system is to provide real-time seam tracking and weld bead profile monitoring at all stages of the multipass welding process to allow control of the welding process.
J. Wu, J.S. Smith, J. Lucas
openaire   +1 more source

Effect of weld bead property on formability of laser welded joint

ICALEO '95: Proceedings of the Laser Materials Processing Conference, 1995
Laser welding is applied to joining blank sheets for car body parts in automotive products. With this technology, the formability of the laser welded joint is important because laser welding produces very hard and brittle weld beads on steel sheets which have high formability.
Yasushi Kitani, Koichi Yasuda, Kataoka Yoshihiro   +2 more
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The chemistry of TIG weld bead formation

Welding International, 2015
TIG welding has high levels of stability and permits more refined control than the majority of other arc welding processes. However, it is well known that small changes in the chemical composition of the base metal and arc operating region can have a pronounced effect on the resulting weld bead shape, which reduces the ability to control and predict ...
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Ultrasonic Detection of Weld Bead Geometry

1987
The three basic components needed to truly automate a welding machine are being investigated in a joint research effort involving the Idaho National Engineering Laboratory (INEL) and the Massachusetts Institute of Technology (MIT). These are: sensors to detect the physical properties of the weld, a model of the welding process, and a control system ...
Carlson, Nancy, Johnson, John
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Durability of Welding Beads for Chassis Parts

SAE Technical Paper Series, 2002
<div class="htmlview paragraph">In the Automotive Field, the current research is aimed at decreasing product costs and timing while increasing reliability. Therefore, carmakers are asking their partners to meet these goals. In this way, development stages use more and more numerical tools to test different solutions quickly.
openaire   +1 more source