Version 1
: Received: 20 April 2023 / Approved: 20 April 2023 / Online: 20 April 2023 (07:48:20 CEST)
How to cite:
Hu, Y.; Xue, J. Effects of Flowrate of Additional Shielding Gas on the Properties of Welded Seam by Twin-wire GMAW Welding for Duplex Stainless Steel. Preprints2023, 2023040623. https://doi.org/10.20944/preprints202304.0623.v1
Hu, Y.; Xue, J. Effects of Flowrate of Additional Shielding Gas on the Properties of Welded Seam by Twin-wire GMAW Welding for Duplex Stainless Steel. Preprints 2023, 2023040623. https://doi.org/10.20944/preprints202304.0623.v1
Hu, Y.; Xue, J. Effects of Flowrate of Additional Shielding Gas on the Properties of Welded Seam by Twin-wire GMAW Welding for Duplex Stainless Steel. Preprints2023, 2023040623. https://doi.org/10.20944/preprints202304.0623.v1
APA Style
Hu, Y., & Xue, J. (2023). Effects of Flowrate of Additional Shielding Gas on the Properties of Welded Seam by Twin-wire GMAW Welding for Duplex Stainless Steel. Preprints. https://doi.org/10.20944/preprints202304.0623.v1
Chicago/Turabian Style
Hu, Y. and Jiaxiang Xue. 2023 "Effects of Flowrate of Additional Shielding Gas on the Properties of Welded Seam by Twin-wire GMAW Welding for Duplex Stainless Steel" Preprints. https://doi.org/10.20944/preprints202304.0623.v1
Abstract
Aiming to diminish the defects caused by high-speed pulsed GMAW welding, such as non-penetration, non-fusion, humping and undercut, the paper proposed an improved twin-wire double-pulsed high-speed welding process by introducing the impact of additional shielding gas on the welding pool and the effects of different shielding gas flowrates on the microstructure and mechanical properties of the welded seam was investigated. The 2205 duplex stainless steel plate was used as the base material for the butt welding test, and the welded seams were subjected to tensile test, metallographic analysis, hardness analysis, and nondestructive testing. The results indicate that as the flowrate of additional shielding gas increases in the range of 8 L/min~16 L/min, the width of the welded seam increases and the height of reinforcement decreases gradually. However, a grooved seam with a lower middle region and higher sides will appear when the gas flowrate becomes excessively large. The test results indicate that the jet impact force is relatively moderate when the flowrate of the additional shielding gas is 12 L/min and thus, is optimal for the welded seam.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
