GMAW-Based Metal Deposition Using Semi-automatic Movement Setup

In the recent years, 3D metal printing technique is tremendously used for building products by vertical layer deposition for various engineering applications. In this work, semi-automatic movement setup was used to perform vertical layer deposition for different open and closed profiles utilizing ga...

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Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2022-12, Vol.47 (12), p.15161-15174
Main Authors: Kumar, V., Bera, T. K.
Format: Article
Language:English
Subjects:
Arc deposition
Base metal
Circuits
Coordinate measuring machines
Engineering
Gas metal arc welding
Heat affected zone
Humanities and Social Sciences
Low carbon steels
Mathematical analysis
Metallurgy
Microhardness
multidisciplinary
Research Article-Mechanical Engineering
Science
Structural analysis
Three dimensional printing
Trajectory measurement
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Summary:In the recent years, 3D metal printing technique is tremendously used for building products by vertical layer deposition for various engineering applications. In this work, semi-automatic movement setup was used to perform vertical layer deposition for different open and closed profiles utilizing gas metal arc welding (GMAW). The movement of welding torch along vertical direction is given manually, whereas the motion of the welding torch in the horizontal plane is completely autonomous. In order to achieve the precise controlled movement of the welding torch during metal printing on low carbon steel, electronic circuitry based on GRBL control was involved. Bead on bead trajectory was measured using coordinate measuring machine (CMM) to check the dimensional accuracy of the product. The micro-structural characterization using SEM image of the prepared samples is also done. Energy-Dispersive X-ray analytical technique was employed for elemental analysis or chemical characterization of the deposited specimens. The variations bead widths at a particular height for metal deposition of different profiles are measured. The micro-structural characterizations at the interface of two layers of metal deposition, also at the base metal and heat affected zone (HAZ) are performed for the observation of metallurgical changes in the structure. Maximum micro-hardness is observed at the HAZ and it gradually reduces towards the top layers in a particular pattern.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-021-06486-7