Results 211 to 220 of about 4,837 (270)

A Method of Feature Extraction of Position Detection and Weld Gap for GMAW Seam Tracking System of Fillet Weld With Variable Gaps

IEEE Sensors Journal, 2021
Seam-tracking technology based on vision sensing is the key technology to realize robot intelligent welding. Because of changes in the weld gap, the diversity of workpiece material and surface conditions, and the interference of welding noises, it is ...
Jiapeng Gao, Yuxiang Hong, B. Hong, Xiangwen Li, Aiting Jia, Yuanyuan Qu   +5 more
semanticscholar   +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

Weld quality improvement and porosity reduction mechanism of zinc coated steel using tandem gas metal arc welding (GMAW)

, 2021
In this study, we present results showing the improved quality of galvannealed steel welds formed under zero-gap lap fillet configuration, using tandem gas metal arc welding (GMAW).
D. Kam, T. Lee, Dong Yoon Kim, Jedo Kim, M. Kang   +4 more
semanticscholar   +1 more source

Digital image correlation study on tensile properties of high strength quenched and tempered steel weld joints prepared by K-TIG and GMAW

Materials Science & Engineering: A, 2021
The aim of this investigation was to compare the strength, ductility and strain distribution during tensile testing of High Hardness Armour (HHA) and Rolled Homogenous Armour (RHA) in a welded configuration, using a range of different welding procedures.
Lihong Su, Zhenyu Fei, Bradley Davis, Huijun Li, H. Bornstein   +4 more
semanticscholar   +1 more source

Effects of torch configuration on arc interaction behaviors and weld defect formation mechanism in tandem pulsed GMAW

, 2021
The effects of interwire distance and angle on arc interaction behaviors and droplet transfer, as well as the weld undercut-defect formation mechanism in tandem pulsed gas metal arc welding (GMAW) with a novel welding torch were studied in this work. The
Guoqiang Liu, Siyuan Han, Xinhua Tang, H. Cui   +3 more
semanticscholar   +1 more source

Modeling of weld penetration control system in GMAW-P using NARMAX methods

, 2021
This study introduces the nonlinear identification of a weld penetration control system in pulsed gas metal arc welding system (GMAW-P) characterized with the fused characteristic signal.
Yue Cao, Zhijiang Wang, Shengsun Hu, Wandong Wang   +3 more
semanticscholar   +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

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

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