Tribology and Materials | Volume 1 | Issue 2 | 2022 | 61-69
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https://doi.org/10.46793/tribomat.2022.008
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Gas metal arc welding of metal-polymer-metal sheets
Sebastian Balos
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Miroslav Dramicanin,
Petar Janjatovic
University of Novi Sad, Faculty of
Technical Sciences, Novi Sad, Serbia
Abstract: Metal-polymer-metal (MPM) sheets are sandwich panels
used for housings of large industrial electric motors and generators,
vehicle body panels, flooring, various bulkheads, wheel arching, engine
and gearbox shielding, etc. Their main advantage over classic steel
panels in form of plates is their acoustic dampening properties. Joining
of such plating is challenging because the polymer interlayer evaporates
and the resulting fumes may cause the plates to deform. In this paper,
GMAW welding was used to join metal-polymer-metal sheets, with a square
butt joint, single V butt joint combined in one sheet, as well as
welding in one pass per side and in multiple bead segments. C1 (CO2) and
M21 (Ar + 18 % CO2) shielding gases were used. Tensile, bending and
hardness tests were performed, macro and microstructures were tested and
the evaporation, melting and cross-linking distances were recorded. It
was shown that contrary to the recent tendency of using M21 shielding
gas for GMAW welding, C1 proved to offer superior tensile and bending
properties of the joint. From the point of view of simplicity and
productivity, a square butt joint proved to be optimal.
Keywords:
GMAW welding, metal-polymer-metal sheets, polymer layer loss.
Received: 20-04-2022, Revised: 23-05-2022, Accepted: 09-06-2022
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license, which allows users to distribute, remix, adapt,
and build upon the material in any medium or format for non-commercial purposes only, and only so long as attribution is given to the creator.
Abstract: Metal-polymer-metal (MPM) sheets are sandwich panels used for housings of large industrial electric motors and generators, vehicle body panels, flooring, various bulkheads, wheel arching, engine and gearbox shielding, etc. Their main advantage over classic steel panels in form of plates is their acoustic dampening properties. Joining of such plating is challenging because the polymer interlayer evaporates and the resulting fumes may cause the plates to deform. In this paper, GMAW welding was used to join metal-polymer-metal sheets, with a square butt joint, single V butt joint combined in one sheet, as well as welding in one pass per side and in multiple bead segments. C1 (CO2) and M21 (Ar + 18 % CO2) shielding gases were used. Tensile, bending and hardness tests were performed, macro and microstructures were tested and the evaporation, melting and cross-linking distances were recorded. It was shown that contrary to the recent tendency of using M21 shielding gas for GMAW welding, C1 proved to offer superior tensile and bending properties of the joint. From the point of view of simplicity and productivity, a square butt joint proved to be optimal.
Keywords: GMAW welding, metal-polymer-metal sheets, polymer layer loss.
Received: 20-04-2022, Revised: 23-05-2022, Accepted: 09-06-2022
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license, which allows users to distribute, remix, adapt, and build upon the material in any medium or format for non-commercial purposes only, and only so long as attribution is given to the creator.