한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제23권2호
  • /
  • Pages.191-198
  • /
  • 2006
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

STL offset을 이용한 다이레스 CNC 포밍용 등고선 공구경로 생성

Contouring Tool Path Generation for Dieless CNC Forming using STL Offset

  • 강재관 (경남대학교 기계자동화공학부) ;
  • 최동우 (경남대학교 대학원 메카트로닉스)
  • 발행 : 2006.02.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Dieless CNC forming is an innovative technology which can form various materials with complex shape by numerically controlled incremental forming process. In this paper, a method of NC tool path generation based on an STL file for dieless CNC forming is proposed. Tool trajectory adopts the principle of layered manufacturing in rapid prototyping technology, but it is necessary to consider STL offset because of the ball shaped tool with a radius. Vertex offset method which enables to compute offset STL directly is engaged for STL offset. The offseted STL is sliced by cutting planes to generate contouring tool path. Algorithm is implemented on a computer and experimented on a dieless CNC forming machine to show its validity.

키워드

참고문헌

  1. Kochan, A., 'Dieless forming,' Assembly Automation, Vol. 21, No. 4, pp.321-322, 2001 https://doi.org/10.1108/01445150110407304
  2. Park, J. Y., 'Dieless Press Forming Technology of Sheet Metal,' Korean Monthly Press Technology, Vol. 2, pp.80-89, 2003
  3. Amino, H., 'Dieless Digital Manufacturing Technology,' Korean Monthly Press Technology, Vol. 2, pp. 38-45, 2003
  4. Dai, K., Wang, Z. R. and Fang, Y., 'CNC incremental sheet forming of axially symmetric specimen and the locus of optimization,' J. Mater. Process. Technol., Vol. 102, pp.164-167, 2000 https://doi.org/10.1016/S0924-0136(00)00423-4
  5. Shim, M. S. and Park, J. J., 'The formality of aluminum sheet in incremental forming,' J. Mater. Process. Technol., Vol. 113, pp.654-658, 2001 https://doi.org/10.1016/S0924-0136(01)00679-3
  6. Kim, Y. H. and Park, J. J., 'Effect of parameters on formability in incremental forming of sheet metal,' J. Mater. Process. Technol., Vol. 130, pp.42-46, 2002 https://doi.org/10.1016/S0924-0136(02)00788-4
  7. Park, J. J. and Kim, Y. H., 'Fundamental studies on the incremental sheet metal forming technique,' J. Mater. Process. Technol., Vol. 140, pp.447-453, 2003 https://doi.org/10.1016/S0924-0136(03)00768-4
  8. Lee, S., Ahn, D., Kim, H., Yang, D., Park, D. and Chae, H. 'Generation of Cutting Path Data for Two Steps of the Cutting Process In Full-Automated VLM-ST,' J. of KSPE, Vol. 21, No. 1, pp.140-148, 2004
  9. Park, J. H. and Shin, Y. H., 'Accuracy of Enhancement in Direct & Adaptive Slicing of a Rotational Surface,' J. of KSPE, Vol. 17, No.1, pp.185-191, 2000
  10. Jie, L., Jianhua, M. and Shuhuai, H., 'Sheet metal dieless forming and its tool path generation based on STL files,' Int. J. of Adv. Manuf. Technol., Vol. 23, No. 9-10, pp.696-699, 2004 https://doi.org/10.1007/s00170-003-1783-y
  11. Jun, C. S., Kim, D. S. and Park, S. Y., 'A new curve-based approach to polyhedral machining,' Computer-Aided Design, Vol. 34, pp.379-389, 2002 https://doi.org/10.1016/S0010-4485(01)00110-5
  12. Qu, X. and Stucker, B., 'A 3D surface offset method for STL-format model,' Rapid Prototyping Journal, Vol. 9, No. 3, pp.133-141, 2003 https://doi.org/10.1108/13552540310477436