한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제19권9호
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  • Pages.90-97
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  • 2002
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

알루미나의 레이저 절단 가공 시 균열 발생의 확률모델링

A Probabilistic Model for Crack Formation in Laser Cutting of Ceramics

  • 최인석 (한양대학교 대학원 정밀기계공학과) ;
  • 이성환 (한양대학교 기계공학과) ;
  • 안선응 (한양대학교 산업공학과)
  • Choi, In-Seok (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Lee, Seoung-Hwan (Dept. of Mechanical Engineering, Hanyang University) ;
  • Ahn, Sun-Eung (Dept. of Mechanical Engineering, Hanyang University)
  • 발행 : 2002.09.01
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초록

Ceramics are being increasingly used in industry due to their outstanding physical and chemical properties. But these materials are difficult to machine by traditional machining processes, because they are hard and brittle. Recently, as one of various alternative processes, laser-beam machining is widely used in the cutting of ceramics. Although the use of lasers presents a number of advantages over other methods, one of the problems associated with this process is the uncertain formation of cracks that result from the thermal stresses. This paper presents a Bayesian probabilistic modeling of crack formation over thin alumina plates during laser cutting.

키워드

참고문헌

  1. G..Spur, I. Sabotks, T. H. Tio and U. E. Wunsch, 'Uberblich uber trennende fertigungsverfahren zur hartbearbritung von keramiken, Fachblatt fur Metallbearbeitung,' 64(4), p311, 1987
  2. R. N. Smith, R. P. Suprenant and D. A. Kaminski, 'Fracture characteristics of an aluminum oxide ceramic during continuous wave carbon dioxide laser cutting,' ICALEO, pp. 337-347, 1991
  3. J. Glass, H. P.Groger, R. J. Churdhill, J. W.Lindau and T. E. Diller, 'Heat transfer in metallic glasses during laser cutting,' HTD-Vol. 113, Heat Transfer in Mfg and Materials Processing, 1989 Natl Heat Transfer Conf., pp. 31-38, 1989
  4. K. Li and P. Sheng, 'Plane Stress Model for Facture of Ceramics during Laser Cutting,' Int. J. Mach. Tools Manufact, Vol. 35, No. 11, pp. 1493-1506, 1995 https://doi.org/10.1016/0890-6955(94)00127-6
  5. G. Lu, E.Siores, and B. Wang, 'An empirical equation for crack formation in the laser cutting of ceramic plates,' Journal of Materials Processing Technology, pp. 154-158, 1999 https://doi.org/10.1016/S0924-0136(98)00384-7
  6. L. Hector, Jr. and R.B. Hetnarski, 'Thermal Stresses in Materials due to Laser Heating,' Mechanics and Mathematical Methods Vol.4 Thermal Stresses IV, Elsevier, pp. 453-526, 1996
  7. B. S. Yilbas, et al., 'Laser-induced thernal stresses on steel surface,' Optics and lasers in engineering 30, pp. 25-37, 1998 https://doi.org/10.1016/S0143-8166(98)00008-6
  8. G. Lu, A. Kotousov and E. Siores, 'Elementary mathematical theory of thermal stresses and fracture during welding and cutting,' Journal of Materials Processing Technology, pp. 298-302, 1999 https://doi.org/10.1016/S0924-0136(99)00036-9
  9. G. Chryssolouris, 'Laser Machining Theory and Practice,' Springer-Verlag, 1991
  10. P. Pietro and Y.L.Yao, 'A Numerical Investigation into Cutting Front Mobility in $CO_2$ Laser Cutting,' Int. J. Mach. Tools Manufact, Vol. 35, pp. 673-688, 1995 https://doi.org/10.1016/0890-6955(95)93037-7
  11. R. E. Barlow and M. B. Medel 'de Finetti-type Representation for Life Distributions,' JASA, Vol. 87, No. 420, 1992 https://doi.org/10.2307/2290649
  12. L. Cai, 'Model-Baed Process Planning for Laser Cutting,' Ph. D. dissertation Caligornia at Berkeley, 1996
  13. I. Belic, 'A Method to Determine the Parameters of Laser Cutting,' Optics and Laser Technology, V21, pp. 277-278, 1989 https://doi.org/10.1016/0030-3992(89)90092-3
  14. G. Chryssolouris and W. Choi, 'Theoretical Aspects of Laser Grooving,' Proc. 14th Conf. on Produetion Research and Technology, pp. 323-331, 1987
  15. P. Sheng and G. Chryssolouris, 'Theoretical Model of Laser Grooving for Composite Materials,' Jounal of Composite Materials, Vol. 29, pp. 96-112, 1995 https://doi.org/10.1177/002199839502900105
  16. S. Biyikli and M. Modest, 'Beam Expansion and Focusing Effects on Evaporative Laser Cutting,' ASME Journal of Heat Transfer, Vol. 110, No. 2, pp. 529-532, 1988 https://doi.org/10.1115/1.3250523
  17. H, Abakians and M.F.Modest, 'Evaporative Cutting of a Semitrasparent Body with a Moving CW laser,' Journal of Heat Transfer-Transactions of the ASME, V110,N4A:pp. 924-930, 1988 https://doi.org/10.1115/1.3250594
  18. 이성환, '정밀 레이져 디버링을 위한 AE 피드백,' 한국정밀공학회지, pp. 186-193, 1999
  19. I. Park, 'Modeling of Burr Formation Processes in Metal Cutting,' Ph. D. dissertation, Univ. of California, Berkeley, 1996