A Study of Design for Hot Tool to Minimize Radius of Heat Affected Zone in Rapid Heat Ablation process

쾌속 열용삭 공정에서 열반경 최소화를 위한 열 공구 설계에 관한 연구

  • Published : 2006.07.01

Abstract

In order to realize a three-dimensional shape on CAD, the machining process has been widely used because it offers practical advantages such as precision and versatility. However, the traditional machining process needs a large amount of time in cutting a product and the remained material causes trouble such as inconvenience due to cleaning process. Therefore, a new rapid manufacturing process, Rapid Heat Ablation process (RHA) using the hot tool, has been developed. In this paper, the hot tool for RHA process is designed to minimize radius of heat affected zone. TRIZ well-known as creative problem solving method is applied to overcome the contradictive requirements of the hot tool. For the detailed design of the hot tool, numerical model is established with several assumptions. In order to verify the numerical results, surface temperature of the hot tool is measured with K-type thermocouple at the predetermined location. Numerical and experimental results show that the devised hot tool fulfils its requirements. The practicality and effectiveness of the designed hot tool have been verified through experiments.

Keywords

References

  1. Jacobs, P. F., 'Stereolithography and other RP&M Technologies,' ASME Press, pp.1-21, 1996
  2. Nakagawa, T., 'High-speed milling for die and mold making,' Proceedings of the AFDM'99, pp.11-18, 1999
  3. Shin, B. S., Yang, D. Y., Choi, D. S., Lee, E. S., Je, T. J. and Whang, K. H., 'Development of rapid manufacturing process by high-speed machining with automatic fixturing,' Journal of Materials Processing Technology, Vol. 130-131, pp. 363-371, 2002 https://doi.org/10.1016/S0924-0136(02)00825-7
  4. Jung, T. S., 'A study on the development of rapid prototyping system using 5 axis high speed machining,' KAIST Doctoral Thesis, 2004
  5. Hur, J. H., Lee, K. W., Zhu, H. and Kim, J. W., 'Hybrid rapid prototyping system using machining and deposition,' Computer-Aided Design, Vol. 34, No. 10, pp. 741-754, 2002 https://doi.org/10.1016/S0010-4485(01)00203-2
  6. Chen, Y. H. and Song, Y., 'The development of layer-based machining system,' Computer-Aided Design, Vol. 33, No. 4, pp. 331-342, 2001 https://doi.org/10.1016/S0010-4485(00)00092-0
  7. Kang, S. C., Hwang, Y. K., Kim, M. S., Lee, K. I. and Lee, C. W., 'A Compliant Controller Dynamically Updating the Compliance Center by Contact Localization,' Robotica, Vol. 16, pp. 543-550, 1998 https://doi.org/10.1017/S0263574798000058
  8. Huang, H. K., Lin, G. C. I., 'Rapid and flexible prototyping through a dual-robot workcell,' Robotic and Computer Intergrated Manufacturing, Vol. 19, pp. 263-272, 2003 https://doi.org/10.1016/S0736-5845(03)00022-X
  9. Kim, H. C., Lee, S. H., Yang, D. Y. and Park, S. K., 'Investigation into Development of Rapid Heat Ablation process Using hot tool,' J. of KSPE, Vol. 22, No. 6, pp. 222-231, 2005
  10. Ahn, D. G, Lee, S. H. and Yang, D. Y., 'Mechanical properties and anisotropy of expanded polystyrene foam sheet for the VLM-S rapid prototyping process,' Journal of Materials Science Letters, Vol. 21,pp. 747-749, 2002 https://doi.org/10.1023/A:1015705726475
  11. Suh, S. W., Park, K. and Kim, B. J., 'Holder design for the bottle etching machine using TRIZ tools,' Proceeding of society of CAD/CAM engineers, pp.1086-1091, 2005
  12. Incropera, F. P. and Dewitt, D. P., 'Fundamentals of heat and mas transfer,' John Wiley & Sons, 4th Edition, 1996
  13. Hibbitt, Karlsson & Sorensen, Inc., 'ABAQUS/Explicit User's Manual,' Pawtucket, 2001
  14. Ahn, D. G., Lee, S. H. and Yang, D. Y., 'A study on the influence of the sloped cutting angle on kerfwidth and part quality in the hotwire cutting of EPS foam for the VLM-s rapid prototyping,' International Journal of Machine Tools and Manufacturing, Vol. 43, pp. 1447-1464, 2003 https://doi.org/10.1016/S0890-6955(03)00170-6
  15. Kim, H. C., Ahn, D. G, Lee, S. H. and Yang, D. Y., 'A study on thermal characteristics of non-contact hot-tool for rapid feature detailing (RFD) process,' International Journal of Machine Tool and Manufacturing, Vol. 45, No. 3, pp. 345-353, 2005 https://doi.org/10.1016/j.ijmachtools.2004.08.004