Physics of Welding Arc

2021 ◽  
pp. 73-84
Author(s):  
Dheerendra Kumar Dwivedi
Keyword(s):  
Welding Arc

The behavior of TIG welding arc in a high-frequency axial magnetic field

2020 ◽  
Vol 65 (1) ◽  
pp. 95-104
Author(s):  
H. Wu ◽  
Y. L. Chang ◽  
Alexandr Babkin ◽  
Boyoung Lee
Keyword(s):  
Magnetic Field ◽  
High Frequency ◽  
Axial Magnetic Field ◽  
Tig Welding ◽  
Welding Arc

Welding Stress Numerical Simulation and Analysis of High-Pressure Pipeline

2014 ◽  
Vol 912-914 ◽  
pp. 890-894
Author(s):  
Lei Zhang ◽  
Jin Zhou Zhang ◽  
Xiao Ming Li
Keyword(s):  
High Pressure ◽  
Welding Process ◽  
Source Model ◽  
Heat Source Model ◽  
Welding Stress ◽  
Welding Temperature ◽  
Welding Arc ◽  
Pressure Pipeline ◽  
Pipeline Welding ◽  
High Pressure Pipeline

Welded stress has an important impact on quality and life of of high-pressure pipeline. Based on pipeline material performance, considered welding arc force and its mining action, selected double ellipsoidal heat source model, simulated welding process of of high-pressure pipeline, analysised welding temperature field and stress field, determined the distribution disciplines of welding stress, provides useful help on exploring the disciplines of pipeline welding.

Study on Fast-Convert Ultrasonic Frequency Pulse TIG Welding Arc Characteristic

2011 ◽  
Vol 704-705 ◽  
pp. 745-751 ◽  
Author(s):  
Bo Jin Qi ◽  
Ming Xuan Yang ◽  
Bao Qiang Cong ◽  
Wei Li
Keyword(s):  
Pulse Current ◽  
Current Level ◽  
Tig Welding ◽  
Ultrasonic Frequency ◽  
Arc Plasma ◽  
Arc Voltage ◽  
Welding Arc ◽  
Huge Impact ◽  
Pulse Peak ◽  
Frequency Pulse

Based on ultrasonic frequency pulse tungsten inert-gas (TIG) welding for 0Cr18Ni9Ti austenitic stainless steel, the influence of pulse level parameters was investigated on the field of arc characteristic and arc force. The experimental results show that the pulse level parameters could have huge impact to arc characteristic and arc force. With the increased frequency of pulse level, arc plasma has a more obvious pinch effect, which causes the enhance of arc voltage. Similarly, the arc force can be improved obviously compared with that during conventional direct current (DC) TIG welding. By contrast, the sensitivity of welding characteristic to pulse current level frequency would reduce while the duty of pulse peak current increased.

scholarly journals Processes occurring at excitation of the welding arc (Review)

2020 ◽  
Vol 2020 (9) ◽  
pp. 43-48
Author(s):  
N.M. Makhlin ◽  
Keyword(s):  
Welding Arc

A magnetogasdynamic model of a welding arc

2016 ◽  
Vol 87 (1) ◽  
pp. 46-50 ◽  
Author(s):  
K. K. Kim ◽  
I. M. Karpova
Keyword(s):  
Welding Arc

Design of GTAW Wire Feeder Control System Based on Nios II

2013 ◽  
Vol 397-400 ◽  
pp. 1909-1912 ◽  
Author(s):  
Fu Yang ◽  
Shu Zhang ◽  
Wen Ming Zhang
Keyword(s):  
Control System ◽  
Digital Control ◽  
Embedded Processor ◽  
Control Module ◽  
Nios Ii ◽  
Gas Tungsten Arc ◽  
Welding Arc ◽  
Current Parameter ◽  
Wire Feeding ◽  
Feeding Control

Based on Nios II embedded processor control module, a digital control system was designed for wire feeding control of gas tungsten arc welding(GTAW). In the control system FPGA wave module is used to control the movement of the DC servo motor, and the digital control of pulsed wire feeder for GTAW was achieved. One and the same control module with Nios II embedded processor is used to control the wire feeder and the welding power source. Thus, the current parameter of pulsed welding arc can be obtained and used directly for controlling the speed of wire feeding. At last, the experiment results are provided to verify the validity.

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