Results 181 to 190 of about 10,829 (227)
Some of the next articles are maybe not open access.
Fatigue life assessment of weld joints manufactured by GMAW and CW-GMAW processes
Science and Technology of Welding and Joining, 2017The fatigue strength of weld joints manufactured using gas metal arc welding and cold wire GMAW (CW-GMAW) was evaluated under stress-controlled cyclic loading. The material used in this study was class ASTM 131 grade A steel, joined using ER70S wire filler metal. The addition of cold wire led to a decrease in the amount of intergranular ferrite and an
Adrian P Gerlich
exaly +2 more sources
Journal of Materials Processing Technology, 2020
Abstract Double shielded pulsed gas metal arc welding (D-GMAW-P) was proposed to feed the shielding gas of Argon (Ar) and carbon dioxide (CO2) with two independent coaxial channels. The molten pool was protected from blowholes by improving the flow rates of shielding gas in the inner channel and outer channel.
Ran Zong, Ji Chen, Chuansong Wu
exaly +2 more sources
Abstract Double shielded pulsed gas metal arc welding (D-GMAW-P) was proposed to feed the shielding gas of Argon (Ar) and carbon dioxide (CO2) with two independent coaxial channels. The molten pool was protected from blowholes by improving the flow rates of shielding gas in the inner channel and outer channel.
Ran Zong, Ji Chen, Chuansong Wu
exaly +2 more sources
International Journal of Advanced Manufacturing Technology, 2018
In this study, the hybrid arc shape, thermal cycling curve, voltage-current characteristics, and weld formation of 7A52 high-strength armor aluminum alloys welded by a variable polarity plasma arc (VPPA) combined with gas metal arc welding (GMAW) (VPPA-GMAW) were investigated and compared with those of 7A52 aluminum alloys welded by GMAW. The influence
Yongquan Han, Zhenbang Sun
exaly +2 more sources
In this study, the hybrid arc shape, thermal cycling curve, voltage-current characteristics, and weld formation of 7A52 high-strength armor aluminum alloys welded by a variable polarity plasma arc (VPPA) combined with gas metal arc welding (GMAW) (VPPA-GMAW) were investigated and compared with those of 7A52 aluminum alloys welded by GMAW. The influence
Yongquan Han, Zhenbang Sun
exaly +2 more sources
Dynamic modeling of GMAW process
Proceedings 1999 IEEE International Conference on Robotics and Automation (Cat. No.99CH36288C), 2003A model has been developed correlating the anode temperature profile with the dynamic melting rate in gas metal arc welding. Components of this model are identified as the electrode melting rate, temperature-dependent resistivity of electrode and arc voltage.
Zafer Bingul, George E. Cook
openaire +3 more sources
Planning the GMAW process by constraint propagation
Journal of Intelligent Manufacturing, 1997Although the gas metal arc welding (GMAW) process is widely used for joining metals, its planning is still a cumbersome task. The planning procedure involves many complex interrelationships among the process variables and depends heavily on empirical knowledge.
Nagarjun V. Yetukuri, Gary W. Fischer
openaire +1 more source
A simplified voltage model in GMAW
Welding in the World, 2020The relation between the voltage and the arc length in gas metal arc welding (GMAW) is an important characteristic. It determines the power transfer to a large extent, and its knowledge allows the control of the process. However, the voltage depends on a complex distribution of the electric conductivity along the current path and does not depend on the
G. Zhang +4 more
openaire +1 more source
Arc initiation in aluminium GMAW
Welding International, 2010The use of pulsed current for MIG welding of aluminium, despite being one of the most recommended technologies, due to its better results, presents difficulties at the start of the process, principally in regard to arc initiation. With the aim of developing a more suitable process of arc initiation, two new techniques were studied: the first based on ...
Túlio Fernandes dos Santos +1 more
openaire +1 more source
ANODE CARBON ENRICHMENT IN GMAW
High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes), 2010The shielding gas used in the welding process has a strong influence on the metal transfer characteristics. When the gas is chemically active the physicochemical properties of the electrodes can be strongly altered which can increase or decrease arc stability.
F. Valensi +5 more
openaire +1 more source
Quality management system of GMAW based on network
2017 International Conference on Computer, Information and Telecommunication Systems (CITS), 2017From process formulation, welding production to quality inspection, welding quality management needs the cooperation of many departments. In actual production, the repeated works, omissions, and other problems of the establishment of welding procedure specification (WPS) occur from time to time.
Xiaoxiao Zhou +3 more
openaire +1 more source