An Investigation on the Premature Failure of Spur Gear in Coal Stacker Reclaimer: Mechanical Properties and Microstructure Analysis

Authors

  • Rifky Ismail Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
  • Bekti Prabowo Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
  • Yasya Khalif Perdana Saleh Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia
  • Sulistyo Sulistyo Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University, Tembalang Campus, Semarang 50275, Indonesia

Keywords:

Spur Gear, Premature Failure, AISI 4340, Stacker and Reclaimer

Abstract

In this paper, the premature failure of the spur gear on the coal stacker reclaimer system is reported. Fault failure that occurs in the driving spur gear which is made from AISI 4340 steel with respect to the composition of nickel, carbon, chromium, mangan and molybdenum. The spur gear has been operating for about three years when several teeth failed. A tooth in the driving gear is failed where a part of a tooth is separated and torn from its main gear body. An integrity evaluation of this driving spur gear including visual examination, photo documentation, chemical analysis, hardness measurement, metallographic examination and also a tensile strength test. The failure zone is examined by an electron microscope equipped with EDX facilities. Premature failure is associated with porosities present inside the gear bodies which propagate and torn a gear tooth. The hardness around the failed tooth also increase based on the Rockwell Hardness Test. The gear actually able to receive the designed load on the coal stacker and reclaimer based on the yield strength which around 834.73 MPa and the maximum tensile strength is around 921.39 MPa.

References

S. Netpu and P. Srichandr. “Failure Analysis of a Helical Gear.” The First TSME International Conference on Mechanical Engineering, Jan. 2010.

H. Ren. “Fatigue Failure Analysis on Planetary Gear System of Wind Power Gear Box”. Engineering Failure Analysis, Feb. 2015.

M. Guangliano, E. Riva, and M. Guidetti. “Contact Fatigue Failure Analysis of Shot-Peened Gears.” Engineering Failure Analysis, vol. 9 (2), pp. 147-158, Apr. 2002.

C. Chen, R. Yu, H. Han, and M. Su. “Failure Analysis and Prevention for Gear Boxes.” Engineering Failure Analysis, Jul. 1997.

C. Moolwan and S. Neptu. “Contact Fatigue Failure Analysis of Shot-Peened Gears.” IOP Conference Series Materials Science and Engineering, vol. 501(1), pp. 12-22, Apr. 2019.

F. Yang. “Fracture Failure Analysis of Motor Gear.” Engineering Failure Analysis, Jun. 2014.

R. Goher, B. Azzam, and M. Abdrabou. “Failure Analysis for High Stress Gear.” International Journal of Latest Research in Science and Technology, vol. 8(4-1), Aug. 2017.

A. Flores-Márquez, F. Velázquez-Villegas, and G. Ascanio. “Numerical Analysis of a Hydraulic Gear Micro Motor.” Journal of Mechanical Science and Technology, vol. 27 (5), May. 2013.

R. Goher. “Failure Analysis for High Speed Gears.” International Journal of Science and Research (IJSR), vol. 6 (3), Mar. 2017.

V. Boonmag, O. Wisesook, and A. Phukaoluan. “Micro-Crack Analysis of Chromium Steel JIS-SCr 420 for Helical Gear Transmission.” Key Engineering Materials, vol. 777, pp. 294-299, Aug. 2018.

R. Jiang, Q. Wang, and R. Li. “Failure Analysis of Flakes Fell from Small Gear Surface in Wind Power Gearbox.” Corrosion Science and Protection Technology, vol. 28 (2), pp. 154-159, Mar. 2016.

G.E. Dieter. Mechanical Metallurgy. Singapore: McGraw-Hill Book, 1988.

G.E. Totten. “Steel Heat Treatment Handbook: Mettalurgy and Technologies.” USA: Taylor & Francis, 2006.

W.D. Calister and D. G. Rethwisch. “Material Science and Engineering An Introduction,”, Inc: John Wiley & Sons. 2009.

Z.W. Yu and X.L. Xu. “Failure Analysis of Cracked Gear Shafts”. ASM International. 2008.

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Published

2019-09-23

How to Cite

Ismail, R. ., Prabowo, B. ., Khalif Perdana Saleh, Y. ., & Sulistyo, S. (2019). An Investigation on the Premature Failure of Spur Gear in Coal Stacker Reclaimer: Mechanical Properties and Microstructure Analysis. American Scientific Research Journal for Engineering, Technology, and Sciences, 59(1), 252–261. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/5036

Issue

Vol. 59 No. 1 (2019)

Section

Articles

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