Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Estimation of Hardfacing Material and Thickness of STD61 Hot-Working Tool Steels Through Three-Dimensional Heat Transfer and Thermal Stress Analyses

3 차원 열전달/열응력 해석을 통한 STD61 열간 금형강의 하드페이싱 재료 및 두께 예측

  • Park, Na-Ra (Dept. of Mechanical Engineering, Chosun Univ.) ;
  • Ahn, Dong-Gyu (Dept. of Mechanical Engineering, Chosun Univ.)
  • Received : 2014.02.04
  • Accepted : 2014.02.19
  • Published : 2014.04.01
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Abstract

The goal of this paper is to estimate proper hardfacing material and thickness of STD61 hot-working tool steel through three-dimensional heat transfer and thermal stress analyses. Stellite6, Stellite21 and 19-9DL superalloys are chosen as alternative hardfacing materials. The influence of hardfacing materials and thicknesses on temperature, thermal stress and thermal strain distributions of the hardfaced part are investigated using the results of the analyses. From the results of the investigation, it has been noted that a hardfacing material with a high conductivity and a thinner hardfaced layer are desired to create an effective hardfacing layer in terms of heat transfer characteristics. In addition, it has been revealed that the deviation of effective stress and principal strain in the vicinity of the joined region are minimized when the Stellite21 hardfaced layer with the thickness of 2 mm is created on the STD61. Based on the above results, a proper hardfacing material and thickness for STD61 tool steel have been estimated.

이 연구에서는 STD61 열간금형강 상부에 생성되는 하드페이싱층에 적합한 하드페이싱 재료와 두께를 3 차원 비정상 열전달 및 열응력 해석을 통하여 예측하고자 한다. Stellite6, Stellite21과 19-9DL 초합금을 하드페이싱 재료로 적용하였다. 하드페이싱 재료와 두께가 하드페이싱된 시편 내부 온도, 열응력 및 변형률 분포 변화에 미치는 영향에 대하여 분석하였다. 이 결과로부터 큰 열전도도를 가지는 재료로 얇은 하드페이싱 층을 생성하는 것이 열전달 특성 측면에서는 효과적인 것을 알 수 있었다. 또한, Stellite21 초합금으로 2 mm 두께의 하드페이싱부를 STD61 열간 금형강 상부에 생성할 경우, 하드페이싱부와 기저부의 경계부에서 유효응력 및 주변형률 편차가 최소화됨을 알 수 있었다. 이 결과들로부터 STD61 열간금형강에 적합한 하드페이싱 재료와 두께를 예측할 수 있었다.

Keywords

References

  1. Lee, R. S. and Jou, J. L., 2003, "Application of Numerical Simulation for Wear Analysis of Warm Forging Die," Journal of Material Processing Technology, Vol. 140, Issue 1-3, pp. 43-48. https://doi.org/10.1016/S0924-0136(03)00723-4
  2. Ahn, D. G., 2013, "Hardfacing Technologies for Improvement of Wear Characteristics of Hot Working Tools: A Review," International Journal of Precision Engineering and Manufacturing, Vol. 14, No. 7, pp. 1271-1283. https://doi.org/10.1007/s12541-013-0174-z
  3. Lange, K., Cser, L., Geiger, M. and Kals, J. A. S., 1992, "Tool Life and Tool Quality in Bulk Metal Forming," CIRP Annals, Vol. 41, Issue 2, pp. 667-675. https://doi.org/10.1016/S0007-8506(07)63253-3
  4. Farhani, M., Amadeh, A., Kashani, H. and Saeed-Akbari, A., 2006, "The Study of Wear Resistance of a Hot Forging Die, Hardfaced by a Cobalt-base Superalloy," Materials Science Forum, Vol. 30, pp. 212-218.
  5. Kohopaa, J., Hakonen, H. and Kivivuori, S., 1989, "Wear Resistance of Hot Forging Tools Surfaced by Welding," Wear, Vol. 130, Issue 1, pp. 103-112. https://doi.org/10.1016/0043-1648(89)90225-1
  6. Stern, K. H., 1996, "Metallurgical and Ceramic Protective Coatings," Chapman & Hall, pp. 74-111.
  7. Frenk, A. and Kurz, W., 1994, "Microstructural Effects on the Sliding Wear Resistance of a Cobalt-Based Alloy," Wear, Vol. 174, Issues 1-2, pp. 81-91. https://doi.org/10.1016/0043-1648(94)90089-2
  8. Majumdar, J. D., 2010, "Laser Assisted Composite Surfacing of Materials for Improved Wear Resistance," Physics Procedia, Vol. 5, Part A, pp. 425-430. https://doi.org/10.1016/j.phpro.2010.08.164
  9. Ahn, D. G., 2011, "Applications of Laser Assisted Metal Rapid Tooling Process to Manufacture of Molding & Forming Tools - State of the Art," International Journal of Precision Engineering and Manufacturing, Vol. 12, No. 5, pp. 925-938. https://doi.org/10.1007/s12541-011-0125-5
  10. Ocken, H., 1995, "The Galling Wear Resistance of New Iron-Base Hardfacing Alloy: a Comparison with Established Cobalt-and Nickel-base Alloys," Surface Coating Technology, Vol. 76-77, Part 2, pp. 456-461. https://doi.org/10.1016/0257-8972(95)02573-1
  11. D'Oliveira, A. S. C. M., Vilar, R. and Feder, C. G., 2002, "High Temperature Behaviour of Plasma Transferred Arc and Laser Co-based Alloy Coatings," Applied Surface Science, Vol. 201, Issues 1-4, pp. 154-160. https://doi.org/10.1016/S0169-4332(02)00621-9
  12. Ming, Q., Lim, L. C. and Chen, Z. D., 1998, "Laser Cladding of Nickel-based Hardfacing Alloys," Surface Coating Technology, Vol. 106, Issues 2-3, pp. 174-182. https://doi.org/10.1016/S0257-8972(98)00524-6
  13. Persson, D. H. E., Jacobson, S. and Hogmark, S., 2003, "Effect of Temperature on Friction and Galling of Laser Processed NOREM 02 and Stellite 21," Wear, Vol. 255, Issues 1-6, pp. 498-503. https://doi.org/10.1016/S0043-1648(03)00122-4
  14. Mingxi, L., Yizhu, H. and Guoxiong, S., 2004, "Microstructure and Wear Resistance of Laser Clad Cobalt-based Alloy Multi-layer Coatings," Applied Surface Science, Vol. 230, Issues 1-4, pp. 201-206. https://doi.org/10.1016/j.apsusc.2004.02.030
  15. Wu, A. P., Ren, J. L., Peng, Z. S., Murakawa, H., and Ueda, Y., 2000, "Numerical Simulation for the Residual Stresses of Stellite Hard-facing on Carbon Steel," Journal of Material Processing Technology, Vol.101, Issue 1, pp. 70-75. https://doi.org/10.1016/S0924-0136(99)00456-2
  16. Bhanu Kiran, V. T., Krishna, M., Praveen, M. and Pattar, N., 2011, "Numerical Simulation of Multilayer Hardfacing on Low Carbon Steel," International Journal of Engineering Technology, Vol. 3, No. 1, pp. 53-63. https://doi.org/10.7763/IJET.2011.V3.200
  17. Ahn, D. G. and Park, N. R., 2012, "A Study on the Influence of Hard-facing Material and Its Thickness on Temperature and Thermal Stress Distributions in Hotworking Tools Using 3-D Finite Element Analysis," Proceedings of 2012 Autumn Meeting of the Korean Society of Mechanical Engineers, pp. 2357-2358.
  18. Latrobe Specialty Metals Inc., "LSS H13 Tool Steel," http://www.latrobesteel.com
  19. MatWeb, "Bohler-Uddeholm SUPERIOR H13 Hot Work Tool Steel," http://www.matweb.com
  20. MatWeb, "Deloro Stellite Stellite(R)6," http://www.matweb.com
  21. China Steel Suppliers Inc., "Stellite 6," http://www.steelgr.com
  22. Touloukian, Y. S., Powell, R. W., Ho, C. Y. and Klemens, P. G., 1970, "Thermal Conductivity/Metallic Elements and Alloys," Thermophysical Properties Research Center, New York-Washington, pp. 947-949.
  23. Deloro Stellite, "STELLITE 21 ALLOY," http://www.stellite.co.uk/Portals/0/Completed%20Data%20 Sheets/Stellite%2021%20DS01-22208%20(S%20R0808).pdf
  24. MatWeb, "Deloro Stellite Stellite(R)21," http://www.matweb.com
  25. China Steel Suppliers Inc., "Stellite 21," http://www.steelgr.com
  26. MatWeb, "AISI Type 651(19-9) Stainless Steel," http://www.matweb.com
  27. ASM International Handbook Committee, 1990, "ASM Handbook-Tenth Edition, Properties and Selection: Irons, Steels and High Performance Alloys," ASM International, Vol.1, pp. 950-980.

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