Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Investigation Into the Development Of Automatic VLM-ST (VLM-STA) Process and Its Apparatus

완전자동화된 단속적 재료 공급식 가변적층 쾌속조형공정 밀 장치 개발에 관한 연구

  • 양동열 (한국과학기술원 기계공학과) ;
  • 안동규 (조선대학교 공과대학 기계공학과) ;
  • 이상호 (한국과학기술원 기계공학과) ;
  • 김효찬 (한국과학기술원 기계공학과) ;
  • 박승교 (㈜ 메닉스엔지니어링)
  • Published : 2004.04.01
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Abstract

Rapid prototyping (RP) technologies have been widely used to reduce the lead-time and development cost of new products. $VLM-_{ST}$ process has been developed to overcome the currently developed RP technologies such as a large building time, a high building cost, an additional post-processing and a large apparatus cost. $VLM-_{ST}$ process requires an additional human interaction due to the manual stacking and bonding. Hence, building time, building cost and the part quality are dependent on the skill of labor. A novel RP process, fully automated $VLM-_{ST}$ process ($VLM-_{ST}$), has been developed to improve building efficiency of the process and the human dependency of the part. The objective of this work is to propose a $VLM-_{ST}$ process and to develop an apparatus for implementation of the process. $VLM-_{ST}$ process and its apparatus have various technical novelties such as two step cutting using a rotating table, an automatic stacking method using two pilot holes and two reference shapes, a concept of automatic unit shape layer (AUSL), and an automatic bonding using the bonding roller and building magazine. In order to examine the efficiency and the applicability of the proposed process, various three-dimensional shapes, such as a piston, a human head shape and a human bust shape, were fabricated on the apparatus.

Keywords

References

  1. Jacobs, P. F., Stereolithography and other RP&M Technologies, ASME Press, 1996
  2. Chua, C. K., Teh, S. H. and Gay, R. K. L., 'Rapid Prototyping Versus Virtual Prototyping in Product Design and Manufacturing,' The International Journal of Advanced Manufacturing Technology, Vol. 15, No. 8, pp. 597-603, 1999 https://doi.org/10.1007/s001700050107
  3. Kulkarni, P., Marson, D. and Dutta, D., 'A Review of Process Planning Technique in Layered Manufacturing,' Rapid Prototyping Journal, Vol. 6, No. l,pp. 18-35,2000 https://doi.org/10.1108/13552540010309859
  4. Ahn, D. G., Investigation into Development of Variable Lamination Manufacturing using Expandable Polystyrene Foam, Doctoral Thesis in KAIST, 2002
  5. Lee, S. H., Generation of Cutting Path Data of Linear Hot-wire Cutting System for Variable Lamination Manufacturing, Doctoral Thesis in KAIST, 2003
  6. Hope, R. L., Roth, R. N. and Jacobs, P. A., 'Adaptive Slicing with Sloping Layer Surfaces,' Rapid Prototyping Journal, Vol. 3, No. 3, pp. 89-98, 1997 https://doi.org/10.1108/13552549710185662
  7. Chamberlain, P. B., Van Roosendaal, M. D. and Thomas, C. L., 'Variable Thickness Ruled Edge Slice Generation and Three-dimensional Graphical Error Visualization,' Proceedings of Solid Freeform Fabrication Symposium, pp. 311-318, 1998
  8. Nova, P., Kaza, S., Wang, Z., Lee, C. and Thomas, C. L., 'Techniques for Improved Speed and Accuracy in Layered Manufacturing,' Proceedings of Solid Freeform Fabrication Symposium, pp. 609-616, 1996
  9. Hope, R. L., Riek, A. T. and Roth, R. N., 'Layered Building with Sloping Edges for Rapid Prototyping of Large Objects,' Proceedings of the Fifth European Conference on Rapid Prototyping and Manufacturing, pp. 47-57, 1996
  10. Zheng, Y., Choi, S., Mathewson, B. and Newman, W., 'Progress in Computer-Aided Manufacturing of Laminated Engineering Materials Utilizing Thick, Tangent-Cut Layers,' Proceedings of Solid Freeform Fabrication Symposium, pp. 355-362, 1996
  11. Ann, D. G., Lee, S. H. and Yang, D. Y., 'Development of Transfer Type Variable Lamination Manufacturing (VLM-st) Process,' International Journal of Machine Tools & Manufacture, Vol. 42, No. 14, pp. 1577-1587, 2002 https://doi.org/10.1016/S0890-6955(02)00054-8
  12. Cho, I., Lee, K., Choi, W. and Song, Y. A., 'Development of a New Sheet Deposition Type Rapid Prototyping System,' International Journal of Machine Tools & Manufacture, Vol. 40, No. 13, pp. 1813-1829,2000 https://doi.org/10.1016/S0890-6955(99)00086-3
  13. Choi, H. S., Ahn, D. G., Lee, S. H. and Yang, D. Y, 'Accuracy Improvement in Transfer-Type Variable Lamination Manufacturing Process using Expandable Polystyrene Foam and Experimental Verification,' J. of KSPE, Vol. 19, No. 7, pp. 97-105, 2002
  14. Muller, T., Fundamentals of Rapid Prototyping : RP&M 2000 Conference Tutorial, SAE, 2000