Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Thermal Deformation Simulation of Spur Gear According to the Heat Zones in Heat Treatment Process

열처리 공정에서 가열 영역에 따른 평기어의 열변형 해석에 관한 연구

  • Received : 2020.06.18
  • Accepted : 2020.07.05
  • Published : 2020.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

In order to improve fatigue life of transmission gear carburizing is normally used. Carburizing is a very good process to achieve low cost and high performance. The machined gears are heated up to carburizing temperature and then cooled rapidly in an oil bath to produce high surface hardness. The gears may undergo excessive thermal distortion during heating and rapid cooling. In order to predict the distortion during heating and rapid cooling, a coupled thermo-mechanical simulation is needed. In the current research, the simulation of heating and cooling was performed. The results show that the thermal distortion and the residual stresses are well predicted by the coupled simulation. In addition, induction heating and rapid cooling simulation is carried out to predict the thermal distortion. The amount of distortion is compared. It is shown that induction heating is very effective to reduce thermal distortion.

Keywords

References

  1. Kang, S. H., Im, Y. T., "Thermo-elasto-plastic Finite Element Analysis of Quenching Process of Carbon Steel", Journal of Materials Processing Technology, Vol.192-193, pp.381-390, 2007. https://doi.org/10.1016/j.jmatprotec.2007.04.101
  2. Kang, S. H., Im, Y. T., "Three-dimensional Thermo-elastic-plastic Finite Element Modeling of Quenching Process of Plain-carbon Steel in Couple with Phase Transformation", International journal of mechanical sciences, Vol. 49, No. 4, pp.423-439, 2007. https://doi.org/10.1016/j.ijmecsci.2006.09.014
  3. Carlone, P., Palazzo, G. S., Pasquino, R., "Finite Element Analysis of the Steel Quenching Process: Temperature Field and Solid-solid Phase Change", Computers & mathematics with applications, Vol. 59, No. 1, pp.585-594, 2010. https://doi.org/10.1016/j.camwa.2009.06.006
  4. Suh, C. H., Kwon, T. H., Kang, K. P., Choi, H. Y., Kim, Y. S., Kim, Y. S., "Thermo-mechanical Simulation of Boron Steel Cylinders during Heating and Rapid Cooling", Transactions of Materials Processing, Vol. 23, No. 8, pp.475-481, 2014. https://doi.org/10.5228/KSTP.2014.23.8.475
  5. Suh, C. H., Kwon, T. H., Jeon, H. W., Oh, S. K., Park, C. D., Choi, H. Y., Moon, W. S., "Thermal Deformation Simulation of Boron Steel Square Sheet in Fluid Cooling Process", Transactions of Materials Processing, Vol. 26, No. 1, pp.5-10, 2017. https://doi.org/10.5228/KSTP.2017.26.1.5
  6. Lee, S. Y., Lee, K., Lim, Y. H., Jeong, W. C., "Study on Heat Transfer Characteristic in Hot Press Forming Process", Transactions of Materials Processing, Vol. 22. No. 2, pp.101-107, 2003. https://doi.org/10.5228/KSTP.2013.22.2.101
  7. Kang, K. P., Lee, K. H., Kim, Y. S., Ji, M. W., Suh, Y. S., "Prediction of Phase Transformation of Boron Steel Sheet during Hot Press Forming using Material Properties Modeler and DEFORM-HT", Transactions of Materials Processing, Vol. 17, No .4. pp.249-256, 2008. https://doi.org/10.5228/KSPP.2008.17.4.249
  8. Byun, J. H., Byun, S. D., Yi, C. H., "A Study on SCr420HB Helical Gear Deformative Simulation by Heat Treatment Quenching Method", Journal of the Korean Society for Heat Treatment, Vol. 28, No. 1, pp.24-31, 2015. https://doi.org/10.12656/jksht.2015.28.1.24
  9. Ahn, M. J., Ahn, I. H., Lyu, S. K., "A Study on the Carburizing Treatment of SCM415 Steel Spur Gear", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 10 No. 1, pp.67-72, 2011.
  10. Bae, k. Y., Yang, Y. S., Park, B. O., "Analysis of Deformation of Automotive Helical Gear in Heat Treatment of Carburized Quenching". Journal of the Korean Society of Precision Engineering, Vol. 27, No. 11, pp.84-91, 2010.
  11. Kim, H. J., Choi, S. C., Lee, D. J., Kim, H. Y., "Analysis of the Carburizing Heat Treatment Process for SNCM Alloy Steel Using the Finite Element Method", Journal of Mechanical Science and Technology, Vol. 30, No. 10, pp.1248-1292, 2006.