Physical and mechanical properties of semi-automatic MIG welding of AA5083H116 materials

Mudjijana Mudjijana

Abstract


Metal inert gas (MIG) welding speed can be carried out manually for complicated components and can also be controlled using computer numerical control (CNC). The purpose of the research is to investigate the effect of CNC welding speed on physical and mechanical properties of AA5083H116. AA5083H116 base metal, ER5356 electrodes, welding speeds of 8, 10, 12 mm/s, current of 120 A, voltage of 19 V, filling speed of 27 mm/s, argon gas rate of 15 liter/minute were used. Distortions after welding were measured using dial indicators, thermal cycles was recorded using type-K thermocouple using National instruments NI USB-9162 apparatus connected to a CPU. The physical properties was analyzed using SEM and EDS for only the best mechanical properties, and the mechanical properties were evaluated using Vickers microhardness, and tensile and bending universal testing machine. The results show that at the welding speed of 8 mm/s automatic regulated was the best mechanical properties compare to previous study at the welding speed of 10 mm/s manually regulated. However, SEM images show that there were several micro cracks at its grain, and several magnesium precipitates can be noticed from the EDS analysis.

Keywords


AA5083H116, ER5356, MIG, welding speed

Full Text:

PDF

References


Wiryosumarto, H., dan Okumura, T. Teknologi Pengelasan Logam. Jakarta: Pradnya Paramita. 2000: 20-23.

Zain, H. Peraturan Menteri Tenaga Kerja dan Transmigrasi Republik Indonesia No: PER.02/MEN/1992. Tentang Kwalifikasi Juru Las di Tempat Kerja. Kementerian Tenaga Kerja dan Transmigrasi RI. Jakarta: Depnakertrans. 1982: 1-28.

Haelsig, A., Kusch, M., Mayer, P. New findings on the efficiency of gas shielded arc welding, Welding in the World. 2012; 56: 98-104.

Borrego, L.P., Costa, J.D., Jesus, J.S., Loureiro, A.R., Ferreira, J.M. Fatigue life improvement by friction stir processing of 5083 aluminium alloy MIG butt welds. Theoretical and Applied Fracture Mechanics. 2014; 70: 68-74.

Brumm, S., Bürkner, G. Gas metal arc pulse welding with alternating current for lightweight materials, Materials Today: Proceedings. 2015; 2S: S179-S187.

Zhang, Z., Liu, L., Song, G. Welding characteristics of AZ31B magnesium alloy using DC-PMIG welding, Trans. Nonferrous Met. Soc. China. 2013; 23: 315-322.

Gray, T., Camilleri, D., McPherson, N. Control of welding distortion in thin-plate fabrication. UK: Wood Publishing. 2014: 133.

Mudjijana, Moch. Noer Ilman, Priyo Tri Iswanto. Karakterisasi pengaruh kecepatan las

pada pengelasan MIG AA5083H116 dengan elektroda ER5356. POROS. 2017; 15 : 26-34.

Farag, M.M. Materials and process selection for engineering design. New York: CRC Press. 2014: 167.




DOI: https://doi.org/10.18196/jmpm.2116

Refbacks

  • There are currently no refbacks.


Editorial Office :

JURNAL MATERIAL DAN PROSES MANUFAKTUR

Department of Mechanical of Engineering, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta.

Jln. Brawijaya Tamantirto Kasihan Bantul 55183 Indonesia

Telp:(62)274-387656, Fax.:(62)274-387656, WA: 085729357100

Email: jmpm@umy.ac.id

Website: http://http://journal.umy.ac.id/index.php/jmpm