Results 141 to 150 of about 1,045 (183)

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

Robotic GMAW forming remanufacturing technology [PDF]

Advances in Manufacturing, 2013
Robotic GMAW forming process with the advantages of high productivity and high bond strength has become an important forming remanufacturing technology. In this paper, our recent research achievements are introduced and our development prospect on robotic GMAW forming remanufacturing is declared.
Zhu Sheng
exaly   +2 more sources

The influence of hybrid arc coupling mechanism on GMAW arc in VPPA-GMAW hybrid welding of aluminum alloys

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
Zhenbang Sun, Yongquan Han
exaly   +2 more sources

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

Influence of Preheated Wire on GMAW Process

Advanced Materials Research, 2013
An hot-wire GMAW process is proposed in which the wire is preheated by a TIG arc to enhance the wire melting, and the process is aimed at high efficiency welding with a low level heat input. The welding system is designed, the wire temperature is monitored and the metal transfer and arc behavior is observed.
Jun Ni, Hong Ming Gao
openaire   +1 more source

The Study of the Model for the Formation Process of GMAW

Advanced Materials Research, 2011
It is based on the comprehensive analysis of welding circuit for GMAW arc power, a system model, through power, cable, wire, droplet and arc, is created, and a voltage function of wire is also developed according to distributed temperature function about a variable of genuine length of wire.
Chun Tian Li, Chang Hua Du, Yi Luo, Hui Bin Xu   +3 more
openaire   +1 more source

Optimization procedures for GMAW of bimetal pipes

Journal of Materials Processing Technology, 2011
Abstract Autogenous gas tungsten arc welding (GTAW) and pulse rapid arc gas metal arc welding (GMAW) of butting bimetal (Bubi) pipelines were studied. GMAW was carried out from the outside of the pipe while GTAW was done from the inside to prevent lack of penetration and to promote a smooth internal weld bead surface.
A.M. Torbati, R.M. Miranda, L. Quintino, S. Williams, D. Yapp   +4 more
openaire   +1 more source

Multiple-Wire Welding GMAW and SAW

2019
This chapter presents the developments in multiple-wire welding from the technology and research perspectives. The multiple-wire welding uses more than one electrode, in which the electrodes travel simultaneously with the same or different feed rates through a joint contact tube.
Syed Quadir Moinuddin, Abhay Sharma
openaire   +1 more source

Online measurement of droplet size by actively exciting droplet oscillation in GMAW and GMAW-AM

Journal of Manufacturing Processes, 2023
Xiaochao Zhang, Zhiwei Li, Hongming Gao
openaire   +1 more source