Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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An Analytical Study on the Preheating Effect of Flat Workpiece in Thermally Assisted Machining by Multi Heat Sources

다중열원 보조가공을 위한 평판 시편의 예열 효과에 관한 해석적 연구

  • Moon, Sung-Ho (School of Mechanical Engineering, Changwon National University) ;
  • Lee, Choon-Man (School of Mechanical Engineering, Changwon National University)
  • Received : 2016.06.07
  • Accepted : 2016.07.22
  • Published : 2016.08.01
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Abstract

Laser-assisted machining (LAM) is one of the most effective methods of processing difficult-to-cut materials, such as titanium alloys and various ceramics. However, it is associated with problems such as the inability of the laser heat source to generate an appropriate preheating temperature. To solve the problem, thermally assisted machining with multiple heat sources is proposed. In this study, thermal analysis of multiple heat sources by laser and arc is performed according to power, heat source size, and leading heat source position. Then, the results are analyzed according to each condition. The results of this analysis can be used as a reference to predict preheating temperature in thermally assisted machining with multiple heat sources.

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References

  1. Kim, D. H., Jung, D. W., and Lee, C. M., "Study on Temperature Effect of Difficulty-to-Cut Material in Laser Heat Treatment Process," J. Korean Soc. Precis. Eng., Vol. 31, No. 1, pp. 29-33, 2014. https://doi.org/10.7736/KSPE.2014.31.1.29
  2. Kim, E. J. and Lee, C. M., "Study on the Preheating Method of NURBS Shaped Workpiece by Laser Assisted Machining," J. Korean Soc. Precis. Eng., Vol. 33, No. 2, pp. 101-107, 2016. https://doi.org/10.7736/KSPE.2015.33.2.101
  3. Baek, J. T. and Lee, C. M., "Analysis of Overlapping Heat Zones in Laser-Assisted Machining," J. Korean Soc. Precis. Eng. Manuf., Vol. 32, No. 12, pp. 1023-1029, 2015. https://doi.org/10.7736/KSPE.2015.32.12.1023
  4. Woo, W. S. and Lee, C. M., "A Study of the Machining Characteristics of AISI 1045 Steel and Inconel 718 with a Cylindrical Shape in Laser-Assisted Milling," Applied Thermal Engineering, Vol. 91, pp. 33-42, 2015. https://doi.org/10.1016/j.applthermaleng.2015.08.006
  5. Kim, D. H. and Lee, C. M., "A Deformation Analysis of Workpiece by Laser Preheating Effect in Laser- Assisted Milling of SM45C," Proc. of KSPE Autumn Conference, pp. 681-682, 2012.
  6. Bermingham, M., Schaffarzyk, P., Palanisamy, S., and Dargusch, M. S., "Laser-Assisted Milling Strategies with Different Cutting Tool Paths," The International Journal of Advanced Manufacturing Technology, Vol. 74, No. 9, pp. 1487-1494, 2014. https://doi.org/10.1007/s00170-014-6093-z
  7. Kim, K. S. and Lee, C. M., "Analysis of Moving Heat Source for Laser Assisted Machining of Plate by Feed Rate Control," J. Korean Soc. Precis. Eng., Vol. 28, No. 12, pp. 1341-1346, 2011.
  8. Kang, D. W. and Lee, C. M., "A Study on Determining the Exponents for a Constitutive Equation in Laser Assisted Machining," Int. J. Precis. Eng. Manuf., Vol. 14, No. 14, pp. 2051-2054, 2013. https://doi.org/10.1007/s12541-013-0266-9
  9. Kim, J. D., Myung, G. H., Song, M. K., Oh, J. H., and Suh, J., "The Characteristics of Bead Welding on Steel with Process Parameter during the Laser-Arc Hybrid Welding (I)-Effect of Flow Rate of Shield Gas and Distance between Laser and Arc," Journal of Welding and Joining Society, Vol. 33, No. 2, pp. 85-90, 2015. https://doi.org/10.5781/JWJ.2015.33.2.85
  10. Matsuda, J. and Utsumi, A., "TIG or MIG Arc Augmented Laser Welding of Thick Mild Steel Plate," Joining and Materials, Vol. 1, pp. 31-34, 1988.
  11. Ahn, Y. N., Kim, C. H., and Kim, J. H., "Position Welding for Internal Welded Specimen Using Laser-GMA Hybrid Welding," Journal of Welding and Joining, Vol. 33, No. 1, pp. 54-60, 2015. https://doi.org/10.5781/JWJ.2015.33.1.54
  12. Cho, D. W., Cho, W. I., and Na, S. J., "Modeling and Simulation of Arc: Laser and Hybrid Welding Process," Journal of Manufacturing Processes, Vol. 16, No. 1, pp. 26-55, 2013. https://doi.org/10.1016/j.jmapro.2013.06.012
  13. Kim, D. H. and Lee, C. M., "A Study of Cutting Force and Preheating-Temperature Prediction for Laser-Assisted Milling of Inconel 718 and AISI 1045 steel," International Journal of Heat and Mass Transfer, Vol. 71, pp. 264-274, 2014. https://doi.org/10.1016/j.ijheatmasstransfer.2013.12.021