Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Characteristics of Roughness of Inclined Surface Fabricated by Various Rapid Prototyping Processes

여러 가지 쾌속조형 방식의 경사면 거칠기 특성

  • 김기대 (대구가톨릭대학교 기계자동차공학부)
  • Published : 2007.10.15
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Abstract

Surface of rapid prototype has inevitably stair-stepping error, which is attributed to the continuous building process of 2 dimensional area. In this study, rounded edge model was established to estimate the roughness of inclined surface which has stair-stepping error. To investigate the roughness of rapid prototypes, specimens that have various surface inclinations were manufactured by various types of RP machines. As the surface inclination increased, the roughness of the specimens manufactured by SL, FDM, or LOM process decreased, which coincides with the simulation results. However, surface roughness of 3DP specimen was almost independent of the inclination. Furthermore, as the angle of surface increased, roughness of poly-jet specimen also increased, which is attributed to the frictional behavior between writing head and scanned area.

Keywords

References

  1. Im, Y. G., Chung, S. I., and Jeong, H. D., 1999, 'Development of Investment Casting Technique using R/P Master Model,' Journal of KSPE, Vol. 16, No. 6, pp. 52-57
  2. Kim, H. C., Lee, S. and Lee, S. H., 2006, 'Rapid Tooling Technology for Producing Functional Prototypes using Ceramic Shell Investment Casting and Patterns Produced Directly from Thermo-Jet 3D Printer,' Journal of KSPE, Vol. 23, No. 8, pp. 203-210
  3. Pham, D. T. and Gault, R. S, 1998, 'A Comparison of Rapid Prototyping Technologies,' Int. J. of Machine Tool & Manufacture, Vol. 38, pp. 1257-1287 https://doi.org/10.1016/S0890-6955(97)00137-5
  4. Mahesh, M., Wong, Y. S., Fuh, J. Y. H. and Loh, H. T., 2004, 'Benchmarking for Comparative Evaluation of RP Systems and Processes,' Rapid Prototyping Journal, Vol. 10, No. 2, pp. 123-135 https://doi.org/10.1108/13552540410526999
  5. Shellabear, M., 1999, 'Benchmark Study of Accuracy and Surface Quality in RP Models,' RAPTEC, Task 4.2 Report 2
  6. Shellabear, M., 1998, 'Model Manufacturing Processes - State of the Art in Rapid Prototyping,' RAPTEC, Task 4.2 Report 1
  7. Kim, G. D. and Kim, J. Y., 2006, 'Benchmark Study on Surface Roughness and Mechanical Properties of Rapid Prototypes,' Transactions of KSMTE, Vol. 15, No. 4, pp. 56-62
  8. Ahn, D. K., Kim, H. C. and Lee, S. H., 2007, 'Fabrication direction optimization to minimize post-machning in layered manufacturing,' Int. J. of Machine Tools & Manufacture, Vol. 47, pp. 593-606 https://doi.org/10.1016/j.ijmachtools.2006.05.004
  9. Ha, M. K. and Chung, J. S., 2002, 'The Influence of Surface Roughness on Slice Interval Adjustment at FDM,' Transactions of the KSMTE, Vol. 11, No. 4, pp. 68-74
  10. Campbell, R. I., Martorelli, M. and Lee, H. S., 2002, 'Surface roughness visualization for rapid prototyping models,' Computer-Aided Design, Vol. 34, pp. 717-725 https://doi.org/10.1016/S0010-4485(01)00201-9