Particle Tracing for Metal Transfer in Hybrid TIG MAG Arc Welding Process of Interacting Heat Sources

2017 ◽  
Author(s):  
Onkar S. Sahasrabudhe ◽  
D. N. Raut ◽  
D. K. Shinde
Keyword(s):  
Arc Welding ◽  
Welding Process ◽  
Metal Transfer ◽  
Heat Sources ◽  
Particle Tracing ◽  
Arc Welding Process

scholarly journals Hybrid laser arc welding: State of the art in technology

2021 ◽  
Vol 66 (3) ◽  
pp. 115-124
Author(s):  
Martin Petreski ◽  
Dobre Runchev ◽  
Gligorche Vrtanoski
Keyword(s):  
Industrial Application ◽  
Arc Welding ◽  
Stable Process ◽  
Welding Process ◽  
Welding Parameters ◽  
Heat Sources ◽  
Hybrid Laser Arc Welding ◽  
Current State ◽  
Complex Process ◽  
Arc Welding Process

Hybrid laser arc welding is complex process where two heat sources act simultaneously in a common weld pool. The synergy effect of laser beam and electric arc offers several advantages over other individual technological processes, such as: higher welding speed, increased productivity, deeper penetration, better gap bridging ability, stable process, less heat input to the welding material, etc. However, the combination of two heat sources in a single welding process leads to large number of parameters that need to be synchronized and optimized in order to obtain a perfect weld. This paper presents the current state of hybrid laser arc welding in terms of its development, industrial application and scientific research. The introduction part contains a general overview of the hybrid laser arc welding process, its advantages and operating principles, and chronological development. In the second part, welding parameters that directly influence on the hybrid process have been discussed. The third part presents the performance and weld qualities achieved by hybrid welding process in accordance with previous research. In the final part, examples of industrial application and conclusions for further research and development related to hybrid laser arc welding are given.

Simulation of Arc Welding Process

2013 ◽  
Vol 837 ◽  
pp. 55-60
Author(s):  
Viorel Cohal
Keyword(s):  
Residual Stresses ◽  
Arc Welding ◽  
Welding Process ◽  
Design Parameters ◽  
Welding Parameters ◽  
Physical Factors ◽  
Heat Sources ◽  
Original Design ◽  
Reliability Modeling ◽  
Arc Welding Process

This paper presents a program for modeling and optimization of the arc welding process. Interface of the program is divided: time-synchronized monitoring multiple welding robots, a quick calculation options are various parameters, quickly replace the original design parameters (sequence of welding, etc.), the high degree of reliability modeling of welding defects, overheated regions, distortion and residual stresses in structures, intuitive visualization and control mechanism of the modeling process. Process variables are easy to evaluate quickly by changing the welding parameters, leading to systematic optimization of fusion zones, heat-affected zones, residual stress, and distortions. The software provides tools for reporting display of distortion, temperature distribution, residual stresses, and curve progression of physical factors on fixed measuring points. As a production process tool, simulation offers an interface to RoboCad, as well as an export interface to robots. Welding paths can be simulated in real speed, direction, and inclination, and the program is capable of tracking different heat sources (Goldak model, volume sources, surface heat sources with Gauss distribution, and combinations of this). This paper presents RobotStudio simulation of welding of parts. Optimum welding parameters are set using Simufact.welding modeling.

scholarly journals Experimental study on the metal transfer control by using pulsed Ar addition in CO2 arc welding process

2020 ◽  
Vol 38 (4) ◽  
pp. 379-391
Author(s):  
Kohei FUJIWARA ◽  
Tadahisa TSUYAMA ◽  
Masahiro OHARA ◽  
Takashi MIZUGUCHI ◽  
Naoki MUKAI ◽  
...  
Keyword(s):  
Experimental Study ◽  
Arc Welding ◽  
Welding Process ◽  
Metal Transfer ◽  
Arc Welding Process

The Determination of Noxes Emissions in Case of Manual Arc Welding Process with Coated Electrode

2018 ◽  
Vol 69 (7) ◽  
pp. 1826-1829
Author(s):  
Claudiu Babis ◽  
Augustin Semenescu ◽  
Oana Roxana Chivu ◽  
Maria Alina Gligor ◽  
Gabriel Iacobescu ◽  
...  
Keyword(s):  
Production System ◽  
Arc Welding ◽  
Welding Process ◽  
Practical Method ◽  
Machine Building ◽  
Short Exposure ◽  
Metal Bath ◽  
Coated Electrode ◽  
Manual Arc Welding ◽  
Arc Welding Process

The occupational risk assessment of a machine building company must cover each activity and workstation, taking into account each component of the production system (work system), each workload, work equipment and the work environment. This assessment is an extremely complicated and complex issue since the production system of such an enterprise is particularly complex and complicated. Welding assembly is a highly polluting technology process, especially of the atmosphere and soil. The formation of gases in the welding process is the result of burning of the electrodes, powders, forming the molten metal bath and making the weld seam. Welding operators are exposed to smoke and toxic gases resulting from the welding process, which can in many cases be hazardous to health. Many acute intoxications that may be caused by excessive exposure to or short exposure to smoke and gas resulting from the welding process have been studied over time. In the paper are presented the elements of risk related to the welding process and the most widespread occupational diseases that can occur in the ranges of the welding operators. The following are presented the noxious emissions from welding and are determined by a practical method the emission of noxious at welding deposition of a welding sample, using the manual arc welding process with coated electrode.

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