Reason-A Technical Journal (Formerly Reason-A Technical Magazine)

Open Access Open Access  Restricted Access Subscription Access

Application of the AHP for Optimization of Mechanical Properties Of Al-Mg-Si Alloy Using PCTIG Welding


Affiliations
1 Research Scholar, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal and Assistant Professor, JIS College of Engineering, Kalyani., India
2 B.Tech Graduate, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal., India
3 B.Tech Graduate, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal.
4 Professor, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal., India
 

This paper makes an attempt to investigate the influence of pulsed Tungsten Inert Gas (PCTIG) welding variables on the mechanical attributes like Impact Toughness, Hardness, Dilution as well as Notch Tensile Strength of welded specimen. The specimen used was Al-Mg-Si alloy. This alloy is extensively used in automotive manufacturing sector owing to its light weight which also helps to bring down the vehicular C02 emission. The addition of metalloid such as silicon in aluminum parent metal imparts high fluidity, good feeding characteristics and good hot cracking sensitivity to it. As opposed to normal Tungsten Inert Gas (TIG) welding, PCTIG welding applies variable current during operation. Peak current being higher in value facilitates sufficient penetration while base current helps in stabilizing the arc. However, owing to the development of inter-dendritic micro-structural features, PCTIG welding exhibits lower impact toughness and notch tensile strength compared to the parent metal. The Analytic Hierarchy Process (AHP) has been used in this work to maximize the mechanical properties and the related PCTIG welding parameters.

Keywords

Impact Toughness, Notch Tensile Strength, TIG, Inter-dendritic, Analytic Hierarchy Process
User
Notifications
Font Size


  • Mohanty, R.P. and Deshmukh, S.G., Use of Analytic Hierarchic Process for Evaluating Sources of Supply, International Journal of Physical Distribution & Logistics Management, Vol.23, pp. 22-30,1993.

  • Wang, H.S., Che, Z.H., Wu, C, Using Analytic Hierarchy Process and Particle Swarm Optimization Algorithm for Evaluating Product Plans, Expert Systems with Applications, Elsevier,Vol.37, pp.1023 -1034,2010.

  • Saaty, T.L. and Vargas, L.G., Decision Making in Economic, Political, Social, and Technological Environments with The Analytic Hierarchy Process, RWS publications, 1st edition, 1994.

  • Harker, P.T. and Vargas, L.G., The Theory of Ratio Scale Estimation: Saaty's Analytic Hierarchy Process, Management Science, Vol.33, No. 11, pp. 1383-1403,1987.

  • Schnlederjans, M.J. and Garvin, T, Using the Analytic Hierarchy Process and Multiobjective Programming for the Selection of Cost Drivers in Activity-based Costing, European Journal of Operational Research, Vol.100, pp.234-240,1997.

  • Brunger, E., Engler, O and Hirsch, J. Al-Mg-Si Sheet for Autobody Application, Virtual Fabrication of Aluminium Products, Chapter 1 -6, pp.51 -61,2006.

  • Budai, D., Tisza, M., Investigation of EN AW 5754 Aluminium Alloy's Formability at Elevated Temperatures, Material Science Forum, Vol. 885, pp 98-103,2017.

  • Temmar, M., Hadii, M. and Sahraoui, T, Effect of Post-weld Aging Treatment on Mechanical Properties of Tungsten Inert Gas Welded Low Thickness 7075 Aluminium Alloy Joints, Materials and Design, Vol.32, pp. 3532-3536,2011.

  • Pinho da Cruz, J.A.M., Costa, D.M., Borrego, L.F.P. and Ferreira, JAM., Fatigue Life Prediction in AIMgSM Lap Joint Weldments, International Journal of Fatigue, Vol.22, No.7, pp.601-610,2000.

  • Sabiruddin, K., Das, S. and Bhattacharya, A., Application of The Analytic Hierarchy Process (AHP) for Optimization of Process Parameters in GMAW, Indian Welding Journal, Vol.42, No.1, pp.38-46,2009.

  • Jayant, Aand Dhillon, M.S., Use of Analytic Hierarchy Process (AHP) to Select Welding Process in High Pressure Vessel Manufacturing Environment, International Journal of Applied Engineering Research, Vol. 10, No.8,pp.5869-5884,2015.

  • Sarkar, A., Roy, J., Majumder, A. and Saha, S.C., Optimization of Welding Parameters of Submerged Arc Welding Using Analytic Hierarchy Process (AHP) Based on Taguchi Technique, Journal of The Institution of Engineers (India): Series C, Vol. 95, pp. 159-168,2014.

  • Ravisankar, V., Balasubramanian, V. and Muralidharan C, Selection of Welding Process to Fabricate Butt Joints of High Strength Aluminium Alloy Using Analytic Hierarchy Process, Materials and Design. Vol. 27, pp. 373-380,2006.

  • Mondal, C, Bhattacharya, S and Das, S., Parametric Optimization of Spot Welding of 17-4 Ph Stainless Steels Using the Analytical Hierarchy Process (AHP), Indian Welding Journal, Vol.44, No.4, pp.69-77, 2011.

  • Hirsch, J., Recent Development in Aluminium for Automotive Applications, Transactions of Nonferrous Metals Society of China, Vol.24, No.7, pp. 1995-2002, 2014.

  • Tisza, M. and Czinege, I., Comparative Study of the Application of Steels and Aluminium in Light Weight Production of Automotive Parts, International Journal of Lightweight Materials and Manufacture, Vol.1, No.4, pp.229-238,2018.

  • Metals Handbook, Ninth Edition: Volume 6, Welding, Brazing and Soldering, pp. 469- 493,1988.

  • Balasubramanian, V, Ravisankar, V. and Reddy, G.M., Effect of Pulsed Current Welding on Fatigue Behaviour of High Strength Aluminium Alloy Joints, Materials and Design. Vol. 29, pp. 492-500,2008.

  • Kumar, T.S., Balasubramanian, V. and Sanavullah, M.Y., Influences of Pulsed Current Tungsten Inert Gas Welding Parameter on The Tensile Properties of AA6061 Aluminium Alloy, Materials and Design. Vol. 28, pp. 2080-2092,2007.

  • Balasubramanian, V, Ravisankar, V. and Reddy, G.M., Effect of Pulsed Current and Post Weld Aging Treatment on Tensile Properties of Argon Arc Welded High Strength Aluminium Alloy, Material Science and Engineering: A, Vol. 459, No. 1-2, pp. 19-34,2007.

  • Ravisankar, V and Balasubramanian, V, Influences of Pulsed Current Welding Parameters on Tensile and Impact Behaviour of Al-Mg-Si Alloy Weldments, Proceedings of International Conference on IMPLAST, New Delhi, India, pp. 224-32, 2003.

  • Balasubramanian, V, Ravisankar, V. and Reddy, G.M., Influences of Pulsed Current Welding and Post Weld Aging Treatment on Fatigue Crack Growth Behaviour of AA7075 Aluminium Alloy Joints, International Journal of Fatigue, Vol.30, pp.405- 416,2008.

  • Manti, R. and Dwivedi, D. K., Microstructure of Al-Mg-Si Weld Joints Produced by Pulse TIG Welding, Materials and Manufacturing Processes, Vol. 22, No.1, pp.57-61,2007.

  • Ravisankar, V and Balasubramanian, V, Optimizing Pulsed Current TIG Welding Parameters to Refine the Fusion Zone, Science and Technology of Welding and Joining, Vol.11, No. 1, pp. 57-60,2006.

  • Shorowordi, K.M., Laoui, T., Haseeb, A.S.M.A., Celis, J.P., Froyen, L., Microstructure and interface characteristics of B4C, SiC and AI203 reinforced Al matrix composites: a comparative study, Journal of Materials Processing Technology, Vol. 142, pp.738-743,2003.

  • Urena, A. Escalera, M. D. and Gil, L., Influence of Interface Reactions on Fracture Mechanisms in TIG Arc-welded Aluminium Matrix Composites, Composites Science and Technology, Vol.60, pp.613-622,2000.

  • Jayashree, P.K., Gowrishankar, M.C., Sharma, S., Shetty, R., Hiremath, P., Shettar, M., The effect of SiC content in aluminum-based metal matrix composites on the microstructure and mechanical properties of welded joints, Journal of Materials Research and Technology, Vol. 12,pp.2325-2339,2021.

  • Fattahi, M., Aghaei, V.N., Dabiri, A.R., Amirkhanlou, S., Akhavan, S., Fattahi, Y, Novel manufacturing process of nanoparticle / Al composite filler metals of tungsten inert gas welding by accumulative roll bonding, Materials Science and Engineering: A, Vol. 648, pp.47-50,2015.

  • Kumar, A. and Sundarrajan, S., Effect of Welding Parameters on Mechanical Properties and Optimization of Pulsed TIG Welding of Al-Mg-Si Alloy, The International Journal of Advanced Manufacturing Technology, Vol. 42, pp. 118-125.


Abstract Views: 351

PDF Views: 161




  • Application of the AHP for Optimization of Mechanical Properties Of Al-Mg-Si Alloy Using PCTIG Welding

Abstract Views: 351  |  PDF Views: 161

Authors

Soumojit Dasgupta
Research Scholar, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal and Assistant Professor, JIS College of Engineering, Kalyani., India
Satadru Banerjee
B.Tech Graduate, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal., India
Hares Hasan
B.Tech Graduate, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal.
Santanu Das
Professor, Department of Mechanical Engineering, Kalyani Govt. Engineering College, Kalyani- 741235, West Bengal., India

Abstract


This paper makes an attempt to investigate the influence of pulsed Tungsten Inert Gas (PCTIG) welding variables on the mechanical attributes like Impact Toughness, Hardness, Dilution as well as Notch Tensile Strength of welded specimen. The specimen used was Al-Mg-Si alloy. This alloy is extensively used in automotive manufacturing sector owing to its light weight which also helps to bring down the vehicular C02 emission. The addition of metalloid such as silicon in aluminum parent metal imparts high fluidity, good feeding characteristics and good hot cracking sensitivity to it. As opposed to normal Tungsten Inert Gas (TIG) welding, PCTIG welding applies variable current during operation. Peak current being higher in value facilitates sufficient penetration while base current helps in stabilizing the arc. However, owing to the development of inter-dendritic micro-structural features, PCTIG welding exhibits lower impact toughness and notch tensile strength compared to the parent metal. The Analytic Hierarchy Process (AHP) has been used in this work to maximize the mechanical properties and the related PCTIG welding parameters.

Keywords


Impact Toughness, Notch Tensile Strength, TIG, Inter-dendritic, Analytic Hierarchy Process

References





DOI: https://doi.org/10.21843/reas%2F2022%2F29-38%2F222961