Effects of activating flux on aluminum 6061 using TIG welding (GTAW)

2021 ◽  
Author(s):  
Deekshant Varshney ◽  
Kaushal Kumar
Keyword(s):  
Tig Welding ◽  
Activating Flux

scholarly journals Microstructural Stability of Duplex Stainless Steel Weldments

2007 ◽  
Vol 561-565 ◽  
pp. 2119-2122 ◽  
Author(s):  
János Dobránszky ◽  
János Ginsztler
Keyword(s):  
Phase Transformations ◽  
Welded Joints ◽  
Laser Beam Welding ◽  
Base Material ◽  
Special Kind ◽  
Thermal Ageing ◽  
Tig Welding ◽  
Power Measurement ◽  
Microstructural Stability ◽  
Activating Flux

Welding experiences are demonstrated, which were developed on 2205 type duplex and 2509 type superduplex stainless steels (DSS and SDSS). The welded joints were produced by activated TIG welding and laser beam welding. For the ATIG process, which is a special kind of the TIG-welding, silica powder was used as activating flux. Microstructural characterizations were applied for the measurement of ferrite/austenite phase ratio in the weldments. The welded joints were thermally aged at temperature of 400 °C. The phase transformations produced during thermal ageing were investigated by optical and scanning electron microscopy and thermoelectric power measurement. Investigations show that the thermal ageing induced phase transformations are similar at ATIG-welded weldment and DSS base material, but the incubation time is significantly shorter in the weldment than in the base material when laser welding is applied.

Study on A-TIG Welding Technology for 12 mm Thick 304 Stainless Steel Plate

2015 ◽  
Vol 817 ◽  
pp. 337-341
Author(s):  
Yao Yong Yi ◽  
Guan Hui Liu ◽  
Yu Peng Zhang ◽  
Zi Yi Luo ◽  
Lei Xu
Keyword(s):  
Stainless Steel ◽  
High Efficiency ◽  
Bond Line ◽  
Tig Welding ◽  
Steel Plates ◽  
304 Stainless Steel ◽  
Activating Flux ◽  
Full Penetration ◽  
A Tig Welding ◽  
New Variant

A-TIG welding is a new variant of high-efficiency TIG weld technology, the weld penetration can be improved by using surface activating fluxes. In the present work, 12 mm thick stainless steel plates were welded by A-TIG method utilizing self-developed oxide-based composite activating flux. Results showed that for 12 mm thick stainless steel plates, weld joint of full penetration and one-side welding with back formation and good weld appearance could be achieved by A-TIG welding. Furthermore, compared with traditional TIG welding, the microstructure of A-TIG weld was finer, directivity of dendritic crystals near weld bond line was weaker, and mechanical properties of weld joints was also superior.

scholarly journals A Study on the Effect of Different Activating Flux on A-TIG Welding Process of Incoloy 800H

2016 ◽  
Vol 16 (3) ◽  
pp. 26-37 ◽  
Author(s):  
S.P. Sridhar ◽  
S. Arun Kumar ◽  
P. Sathiya
Keyword(s):  
Process Parameters ◽  
Welding Process ◽  
Tig Welding ◽  
Depth Of Penetration ◽  
Activating Flux ◽  
Incoloy 800H ◽  
A Tig Welding

Abstract This study investigates the effect of different activating flux such as V2O5, TiO2, MoO3, Cr2O3, and Al2O3 on A-TIG welding process of Incoloy 800H. The influence of the flux on the depth of penetration and on mechanical and metallurgical characteristics of the weld were studied and compared with autogeneous TIG welds which were welded with the same process parameters and conditions. The use of TiO2 flux gave full depth of penetration and the use of V2O5, Cr2O3 flux gave increased penetration as compared to autogeneous TIG welds while the use of Al2O3 and MoO3 led to the detoriation of the effect.

Multicomponent enabled MWCNTs-TiO2 nano-activating flux for controlling the geometrical behavior of modified TIG welding joint process

2019 ◽  
Vol 97 ◽  
pp. 107442 ◽  
Author(s):  
Muhammad Muzamil ◽  
Jianjun Wu ◽  
Maaz Akhtar ◽  
Vivek Patel ◽  
Arfan Majeed ◽  
...  
Keyword(s):  
Tig Welding ◽  
Activating Flux ◽  
Welding Joint

Experimental Research of Activating Fluxes in A-TIG Welding of 5052 Aluminum Alloy

2014 ◽  
Vol 941-944 ◽  
pp. 2058-2061 ◽  
Author(s):  
Ze Jie Zhou ◽  
Zhi Chao Huang
Keyword(s):  
Aluminum Alloy ◽  
Experimental Research ◽  
Tig Welding ◽  
Experimental Results ◽  
Weld Penetration ◽  
Weld Shape ◽  
Activating Flux ◽  
A Tig Welding ◽  
Weld Forming ◽  
Welding Productivity

AC A-TIG welding on 5052 aluminum alloy was investigated. The single component of oxide TiO2, SiO2, Cr2O3, V2O5 and halide CaF2 was served as activating fluxes to study the effect on weld penetration and weld forming. The experimental results show that weld penetration can be increased and welding productivity can be improved in A-TIG welding. Activating fluxes, especially TiO2 and SiO2, have more significant effect on weld penetration than conventional TIG welding, moreover the better weld shape formed after coating activating flux is obtained, weld width has slight decrease that makes HAZ of A-TIG welding smaller.

AC TIG welding with single-component oxide activating flux for AZ31B magnesium alloys

2007 ◽  
Vol 43 (4) ◽  
pp. 1382-1388 ◽  
Author(s):  
Zhaodong Zhang ◽  
Liming Liu ◽  
Hao Sun ◽  
Lai Wang
Keyword(s):  
Magnesium Alloys ◽  
Single Component ◽  
Tig Welding ◽  
Activating Flux

The Application of Orthogonal Experiment in Development of Activating Flux for TIG Welding

2013 ◽  
Vol 710 ◽  
pp. 182-185 ◽  
Author(s):  
Dan Wu ◽  
Yong Su ◽  
Rong Peng Qiu
Keyword(s):  
Stainless Steel ◽  
Orthogonal Experiment ◽  
Tig Welding ◽  
Welding Parameter ◽  
Activating Flux ◽  
Austenite Stainless Steel ◽  
The One

Conversional TIG welding has low penetration and productivity. Recently, activating flux for TIG welding has received more and more attention. The paper has developed activating flux for TIG welding by means of orthogonal experience. The activating flux developed by orthogonal experience can penetrate austenite stainless steel butt plate in thickness of 8mm once and away which is three times the one of common TIG welding in the same welding parameter.

A Study of the Performance of Dissimilar A-TIG Welds

2012 ◽  
Vol 530 ◽  
pp. 74-79 ◽  
Author(s):  
Hsien Kuo Cheng ◽  
Long Tsai Yao ◽  
Pin Chou Chang
Keyword(s):  
Stainless Steel ◽  
Mild Steel ◽  
316L Stainless Steel ◽  
Welding Process ◽  
Butt Joint ◽  
Tig Welding ◽  
Angular Distortion ◽  
Activating Flux ◽  
Dissimilar Welds ◽  
A Tig Welding

The performance of dissimilar activated tungsten inert gas (A-TIG) welding on the welds morphology, angular distortion, and mechanical properties in dissimilar metal plates were investigated. Autogenous TIG welding process was applied to the JIS G3131 mild steel and type 316L stainless steel through a thin layer of activating flux to produce a butt-joint weld. CaO, SiO2, Fe2O3, and Cr2O3 fluxes were used as the activating fluxes. The experimental results indicated that the SiO2, Fe2O3, and Cr2O3 fluxes can increase joint penetration in both of the 316L stainless steel and the JIS G3131 mild steel. The CaO flux only can increase the joint penetration of the mild steel. The reversed Marangoni convection are considered to the main factors for increasing penetration of A-TIG on dissimilar welds in this study. Furthermore, TIG welding with SiO2 powder can significantly reduce the angular distortion and increase the tensile strength of the dissimilar weldment.

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