Fracture Analysis of Microwave Induced Al6061 Joints

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2019 by IJETT Journal
Volume-67 Issue-1
Year of Publication : 2019
Authors : Shivinder Singh, R. M. Belokar, N. M. Suri


MLA Style: Shivinder Singh, R. M. Belokar, N. M. Suri "Fracture Analysis of Microwave Induced Al6061 Joints" International Journal of Engineering Trends and Technology 67.1 (2019): 41-45.

APA Style: Shivinder Singh, R. M. Belokar, N. M. Suri (2019). Fracture Analysis of Microwave Induced Al6061 Joints. International Journal of Engineering Trends and Technology, 67(1), 41-45.

Increase in applications of aluminum alloys in all sectors of industry tends to develop new technologies for joining of aluminum without affecting the properties of metal. In present work joining of aluminum 6061 has been done by using the newly developed the microwave welding technique. Microwave Joining of aluminum has been successfully achieved without formation of cracks, burn through and distortions defects, which are otherwise very difficult to control. A domestic microwave working at 2450MHz frequency and at 900w power load was used for joining. For joining process aluminum powder with 99.9% purity and 5μm in size was used as bonding agent between two metal pieces. Structural and mechanical properties of the joined samples were observed through different testing techniques like Vicker’s harness test, porosity and tensile, SEM and EDS. The observed result for microhardness shows 87±8 Hv. The fractured sample during tensile testing shows an ultimate tensile strength of 142MPa with 14% elongation.

[1] Clark D.E., Folz D.C., West J.K., ―Processing materials with microwave energy‖, Mater. Sci. Eng, vol. A 287, pp. 153–158, 2000.
[2] Thostenson E.T., Chou T.W., ―Microwave processing: fundamentals and applications‖, Composites: Part A, vol.30, pp. 1055–1071, 1999.
[3] Siores H.S. Ku, Taube E., A., ―Productivity improvement through the use of industrial microwave technologies‖, Computers & Industrial Engineering, vol. 42, pp. 281-290, 2002.
[4] Jones D.A., Lelyveld T.P., Mavrofidis S.D., Kingman S.W., Miles N.J., ―Microwave heating applications in environmental engineering – a review‖, Resour Conserv Recycl,vol.34, pp. 75-90, 2002.
[5] Siores E., Groombridge P., ―High energy rate materials joining using industrial microwaves‖, in: 6th International Conference on Manufacturing Engineering, Melbourne, Australia, pp. 635 -640, November, 1995.
[6] Suttan W.H., ―Microwave processing of ceramic materials‖, The American Ceramic Society Bulletin, vol. 168, pp. 376-386, 1989.
[7] Rajkumar K., Aravindan S., ―Microwave sintering of copper–graphite composites‖, Journal of Materials Processing Technology, vol. 209, pp. 5601–5605, 2009.
[8] Gupta M., Wong W.L.E., ―Microwaves and Metals‖, John Wiley and Sons (Asia) Pte Ltd, Singapore, vol. 45, 2007.
[9] Roy R, Agrawal D, Cheng J, Gedevanishvili S. ―Full sintering of powdered-metal bodies in a microwave field‖, Nature , vol. 399, pp. 668–670, 1999.
[10] Chandrasekaran S, Ramanathan S, Basak T, ―Microwave material processing—a review‖, AICHE Journal, vol. 58, pp. 330–363, 2012.
[11] Sethi G, Upadhyaya A, Agrawal D, ―Microwave and conventional sintering of premixed and prealloyed Cu-12Sn bronze‖, Science of Sintering, vol. 35, pp. 49–65, 2003.
[12] Leonelli C, Veronesi P, Denti L, Gatto A, Iuliano L.,―Microwave assisted sintering of green metal parts‖, Journal of Materials Processing Technology, vol. 205, pp. 489–496, 2008.
[13] Siores E, Rego D., ―Microwave applications in materials joining‖, J Mater Process Techno, vol. 48, pp. 619–25, 1995.
[14] Srinath M.S., A.K. Sharma, Kumar Pradeep, ―A new approach to joining of bulk copper using microwave energy‖, Materials and Design, vol. 32, pp. 2685–2694, 2011.
[15] Singh S., Suri N. M., & Belokar R. M. , ―Characterization of Joint Developed by Fusion of Aluminum Metal Powder through Microwave Hybrid Heating‖, Materials Today: Proceedings, vol. 2(4-5), pp. 1340–1346, 2015.
[16] Srinath M.S., Sharma A.K., Kumar Pradeep, ―Investigation on microstructural and mechanical properties of microwave processed dissimilar joints‖, Journal of Manufacturing Processes, vol. 13, pp. 141–146, 2011.
[17] Srinath MS, Sharma AK, Pradeep K., ―A novel route for joining of austenitic stainless steel (SS-316) using microwave energy’’, Proc IMechE B J Eng Manuf, vol. 225(7), pp. 1083–91, 2011.
[18] Bansal Amit, Sharma A.K, Kumar Pradeep, Das Shantanu, ―Joining of Mild Steel plates using microwave energy‖, Advanced Materials Research, vol. 585, pp. 465-469, 2012.

Aluminum 6061, Microwave heating, SEM, UTS