International Journal of Mathematical, Engineering and Management Sciences

ISSN: 2455-7749

Variation of Microstructural and Mechanical Properties With Respect to Polarity in Shielded Metal Arc Welding of Mild Steel

Bijaya Kumar Khamari
Department of Industrial Design, National Institute of Technology, Rourkela, Pin code - 769008, India.

Balamurali Gunji
Department of Industrial Design, National Institute of Technology, Rourkela, Pin code - 769008, India.

Swapan Kumar Karak
Department of Metallurgical and Materials Engineering , National Institute of Technology, Pin code- 769008 Rourkela, India.

Bibhuti Bhusan Biswal
Department of Mechanical Engineering, National Institute of Technology, Meghalaya, Pincode-793003, India.

DOI https://dx.doi.org/10.33889/IJMEMS.2019.4.2-042

Received on November 16, 2018
  ;
Accepted on February 07, 2019

Abstract

Welding has been done by taking mild steel as work piece material in shielded metal arc welding (SMAW) process. Material thickness and current were considered as input parameters. Joining of metals has been completed in two ways. In first process double pass welding has been done in which 1st pass was in reverse polarity and the second pass was in straight polarity and in the 2nd process both the passes of welding were completed with straight polarity. The comparison of microstructure and impact toughness has been investigated. It was found that more amount of heat was generated in the 2nd process as compared to the 1st process. Therefore, growths of grains in heat affected zone occurred and maximum growth occurred in 2nd than 1st process. Impact strength increased with decrease in current value and increase in material thickness respectively. The impact strength values for 1st process welding were relatively less as compared to 2nd process.

Keywords- Shielded metal arc welding, Microstructure, Impact energy, Polarity, Fusion zone.

Citation

Khamari, B. K., Gunji, B., Karak, S. K., & Biswal, B. B. (2019). Variation of Microstructural and Mechanical Properties With Respect to Polarity in Shielded Metal Arc Welding of Mild Steel. International Journal of Mathematical, Engineering and Management Sciences, 4(2), 521-530. https://dx.doi.org/10.33889/IJMEMS.2019.4.2-042.

Conflict of Interest

The authors confirm that there is no conflict of interest to publish the paper in the journal.

Acknowledgements

This research article is not possible without the support of the Department of Industrial Design and laboratory of the Department of Metallurgical and Materials Engineering. I would also like to thank the institute NIT Rourkela, Odisha, India-769008 which supported us to carry out the research work.

References

Aronov, I., & Zazhigalkin, A. (2017). Diffusion of innovations: patenting or standardization. International Journal of Mathematical, Engineering and Management Sciences, 2(2), 64–73.

Bodude, M. A., & Momohjimoh, I. (2015). Studies on effects of welding parameters on the mechanical properties of welded low-carbon steel. Journal of Minerals and Materials Characterization and Engineering, 3(3), 142.

Chennaiah, M. B., Kumar, P. N., & Rao, K. P. (2016). Influence of heat input and PWHT on the microstructure and mechanical properties in dissimilar (IS2062-EN8) welded joints. Procedia Computer Science, 85, 54-61.

Du Wansheng, P. Y., Lin, Z., & Zhiling, T. (2008). Microstructure and mechanical properties of MIG welded joint of high nitrogen austenite stainless steel [J]. Welding & Joining, 12, 009.

Gera, A. E. (2018). A comparison of start-up demonstration test procedures based on a combinatorial approach. International Journal of Mathematical, Engineering and Management Sciences, 3(3), 195–219.

Gunwant, D. (2019). Stress concentration studies in flat plates with rectangular cut-outs using finite element method. International Journal of Mathematical, Engineering and Management Sciences, 4(1), 66–76.

Gunwant, D., Anjali, Malik, R., Bhandari, S., Pant, A., Saxena, A., Seema, Kumar, N., Chotrani, N., & Sah, P. L. (2017). Fabrication and mechanical testing of egg shell particles reinforced Al-Si composites. International Journal of Mathematical, Engineering and Management Sciences, 2(1), 53–62.

Hooda, A., Dhingra, A., & Sharma, S. (2012). Optimization of mig welding process parameters to predict maximum yield strength in AISI 1040. International journal of Mechanical Engineering and Robotics Research, 1(3), 203-213.

Jagtap, K. R., Rojekar, M. S., Dravid, S. V., & Deshpande, A. R. (2017). Effect of welding parameters on tensile & yield strength of is 2062 grade steel using design of experiment approach. Materials Today: Proceedings, 4(8), 7875-7883.

Lala, S. D., Biswas, A., Debbarma, J., & Deoghare, A. B. (2018). Study of hardness of the weld bead formed by partial hybrid welding by metal inert gas welding and submerged arc welding at three different heat inputs. Materials Today: Proceedings, 5(5), 13650-13657.

Muhammad, A., & Rushdi, A. (2018). Utilization of Karnaugh maps in multi-value qualitative comparative analysis. International Journal of Mathematical, Engineering and Management Sciences, 3(1), 28–46.

Saito, Y., & Dohi, T. (2018). Parametric bootstrap methods for estimating model parameters of non-homogeneous Gamma process. International Journal of Mathematical, Engineering and Management Sciences, 3(2), 167–176.

Srivastava, S., & Garg, R. K. (2017). Process parameter optimization of gas metal arc welding on IS: 2062 mild steel using response surface methodology. Journal of Manufacturing Processes, 25, 296-305.

Talabi, S., Owolabi, O. B., Adebisi, J. A., & Yahaya, T. (2014). Effect of welding variables on mechanical properties of low carbon steel welded joint. Advances in Production Engineering & Management, 9(4), 181-186.

Wang, L., & Alexander, C. A. (2016). Additive manufacturing and big data. International Journal of Mathematical, Engineering and Management Sciences, 1(3), 107–121.

Privacy Policy| Terms & Conditions