Characterization of Dissimilar Materials Joining using Gas Metal Arc Welding
Keywords:
Gas metal arc welding, dissimilar materials joining, galvanized steel, mild steelAbstract
Galvanized steel (GS) and mild steel (MS) were joined using the gas metal arc welding
(GMAW) method with steel filler rod and carbon dioxide as the shielding gas. The welding
process was carried out considering a range of the welding voltages (and currents) that
was gradually varied from 16 V to 18.5 V with an increment of 0.5 V. The mechanical
properties of the MS and GS with GMAW weld joints were investigated by performing the
tensile and hardness tests. In addition, the cross section of the weld area was also inspected
under the stereo microscope to observe the weld quality in terms of the weld penetration
and discontinuities. Results showed that the dissimilar materials of GS and MS could be
successfully joined by GMAW technique by applying the welding voltage and current of
18.0 V and 31 A, respectively. The ultimate tensile strength (UTS) of the successful joint
specimen is 324.7 MPa at which fracture occurs at the MS base metal during the tensile
test. Its maximum hardness value was found to be around 400 Hv, which is located at the
center of weld area.
References
Bian J., Zhu Y., Liu X-H. and Wang G-D., 2006. Development of Hot Dip Galvanized
Steel Strip and Its Application in Automobile Industry, Journal of Iron and Steel Research
International, 13(3): 47–50.
Worldsteel Association, 2015. Advanced Steel Applications, http://worldsteel.org.
[Accessed: 27 December 2017].
Arif N. and Chung H., 2015. Alternating Current-Gas Metal Arc Welding for Application
to Thick Plates, Journal of Materials Processing Technology, 222(9): 75–83.
Martinsen K., Hu S. J. and Carlson B.E., 2015. Joining of Dissimilar Materials, CIRP
Annals - Manufacturing Technology, 64(2): 679–699.
Tadamalle A.P., Reddy Y.P., Ramjee E. and Reddy K.V., 2017. Characterization of
Stainless Steel and Galvanized Iron 0.5 mm Thick Laser Weld Joints, International Journal
of Advanced Manufacturing Technology, 90(1–4): 383–395.
Hobart Brothers Company, 2013. Welding Galvanized Steel: Filler Metal and Equipment
Advancements for The Automotive Industry, [Accessed: 7 December 2017],
http://www.hobartbrothers.com/news/160/523/welding-galvanized-steel-filler-metal-andequipment-
advancements-for-the-automotive-industry.html.
Smith W.F and Hashemi J., 2006. Foundations of Materials Science and Engineering, 4th
Edition, McGraw-Hill.
Modern Steel Construction, 2003. Galvanized Steel, [Accessed: 17 January 2017],
http://msc.aisc.org/globalassets/modern-steel/steelinterchange/2003/052003_2003v05_si_web.pdf.
British Standard, 2012. Specification and Qualification of Welding Procedures for Metallic
Materials – Welding Procedure Test. (ISO 15614-1).
Jenney C.L. and O’Brien A. (Eds.), 1991. Welding Handbook, 9th Edition Vol. 3, American
Welding Society, Miami, FL 33126.
American Welding Society, 2008. Welding Inspection Technology, 5th Edition, American
Welding Society Education Services.
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