Results 151 to 160 of about 5,618 (195)

Dynamic modeling of GMAW process

Proceedings 1999 IEEE International Conference on Robotics and Automation (Cat. No.99CH36288C), 2003
A 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   +4 more sources

Planning the GMAW process by constraint propagation

Journal of Intelligent Manufacturing, 1997
Although 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   +2 more sources

A simplified voltage model in GMAW

Welding in the World, 2020
The 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, G. Goett, D. Uhrlandt, Ph. Lozano, R. Sharma   +4 more
openaire   +1 more source

Arc initiation in aluminium GMAW

Welding International, 2010
The 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, Jair Carlos Dutra   +1 more
openaire   +1 more source

ANODE CARBON ENRICHMENT IN GMAW

High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes), 2010
The 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, N. Pellerin, Stephane Pellerin, M. Collumeau, A. Boutaghane, F. Briand   +5 more
openaire   +1 more source

Understanding fume formation by GMAW

1999
The control of exposure to welding fume is necessary to meet health and safety obligations. The work reported here is a continuation of a successful Cooperative Research Centre project, that has revealed how two different mechanisms are responsible for generation of fume in Gas Metal Arc Welding (GMAW).
Deam, R., Bosworth, M., McAllister, T., Norrish, J., Brooks, Geoffrey, Zhou, S., Haldar, J., Lowke, J., Farmer, A., Simpson, S.   +9 more
openaire   +1 more source

Quality management system of GMAW based on network

2017 International Conference on Computer, Information and Telecommunication Systems (CITS), 2017
From 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, Kehong Wang, Yuehai Feng, Yong Huang   +3 more
openaire   +1 more source

Pendant droplet oscillation during GMAW

Science and Technology of Welding and Joining, 2006
This paper deals with pendant droplet oscillation in pulsed current gas metal arc welding (GMAW). Using a constant current power source, bead on plate welds were made on mild steel plates. The frequency of the pendant droplet oscillation was monitored visually (using a high speed video camera) and electronically (by analysis of the voltage signals ...
B. Y. B. Yudodibroto, M. J. M. Hermans, Y. Hirata, G. den Ouden, I. M. Richardson   +4 more
openaire   +1 more source

An Evaluation System of Pulsed GMAW Process

Applied Mechanics and Materials, 2013
A process evaluation system for pulsed gas metal arc welding (GMAW-P) based on the LabVIEW platform has been developed. This system is comprised of two modules, a simultaneous display module and a data analysis module. Using these modules, the system can not only provide a comprehensive direct viewing display of the welding electric signal and high ...
Ying Gao, Jing Hua Han, Li Yan Lou, Huan Li   +3 more
openaire   +1 more source

HAZ softening behavior of strain-hardened Al-6.7Mg alloy welded by GMAW and pulsed GMAW processes

The International Journal of Advanced Manufacturing Technology, 2017
Gas metal arc welding (GMAW) process was used to weld plates of strain-hardened Al-6.7Mg alloy. It was observed that HAZ softening issue occurred extensively for the current material using the GMAW process. So, as a solution, pulsed current was employed and the plates were welded by pulsed GMAW (PGMAW) process. The effects of peak current (93, 120, 140,
Amir Hadadzadeh, Majid Mahmoudi Ghaznavi, Amir Hossein Kokabi   +2 more
openaire   +1 more source