STEP STANDARTI KULLANARAK MEKANİK PARÇALARIN BİLGİSAYAR ORTAMINDA TEMSİL EDİLMESİ

Günümüzde Bilgisayarla Tümleşik İmalat Sistemlerinin geliştirilmesi hala üzerinde yoğun araştırmaların sürdürüldüğü önemli bir konudur. Araştırmalar Bilgisayar Destekli Tasarım (BDT) ile Bilgisayar Destekli Üretim (BDÜ) sistemlerinin tam olarak bütünleştirilmesinde birtakım eksikliklerin olduğunu göstermektedir. Bunlar; BDT sistemi, tam otomatik Bilgisayar Destekli İşlem Planlama (BDİP) sistemi ve BDÜ ara yüzü olarak sıralanabilir. Son yıllarda BDT sistemlerindeki özellik tabanlı tasarım yaklaşımı büyük bir gelişme göstererek BDT/BDÜ sistemlerinin bütünleşmesinde önemli bir fayda sağlamıştır. Bu çalışmada özellik tabanlı tasarım kavramıyla üzerinde delik ve kademe özellikleri bulunan mekanik bir parçanın STEP standardı kullanılarak bilgisayar ortamında temsil edilmesi ele alınmıştır.

REPRESENT OF MECHANICAL PARTS USING STEP STANDARDS AT COMPUTER ENVIRONMENT

Currently, the development of Computer Aided Manufacturing systems is still a major field where extensive researches are being made. These researches suggest that there are certain problems with the full integration of CAD and CAM systems. These problems result from CAD system, fully automated Computer Aided Process Planning system and Computer Aided Manufacturing Interface. In recent years, the feature-based design approach in CAD systems has made an important progress and has supported to the integration of CAD/CAM systems. In this paper, the representation of a mechanical part having a hole and two steps with the feature-based design concept, using STEP standard format, has been handled in computer environment.

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  • [1] A. Chep, L. Tricarico, 1999; Object-Oriented Analysis and Design of a Manufacturing Feature Representation, International Journal of Production Research, Vol.37, No.10, pp.2349-2379.
  • [2] M.E. Ssemakula, J.S. Gill, 1989; CAD/CAPP Integration Using IGES, AMEAdvanced Manufacturing Engineering, Vol 1, No 5, pp. 264-270.
  • [3] P. Smith, 1990; CAD/CAM Data Exchange, CIM Review The Journal of Computer Integrated Manufacturing Management, Vol 6, No 2, pp. 31-33, Winter.
  • [4] STEP-Standard for the Exchange of Product Model Data, 1998; The First Working Draft of STEP Version 1.0, ISO TC 184/SC4/ WG 1, pp. 1-546.
  • [5] S. Joshi, and T. Chang, 1990; Feature Extraction and Feature Based Design Approaches in the Development of Design Interface for Process Planning", Journal of Intelligent Manufacturing, London, Vol. l, No. l, pp 1-15.
  • [6] C.S. Chen, 1998; Developing a Feature Based Knowledge System for CAD/CAM Integration, Computers Ind. Eng., Vol 15, No.1-4, pp.34- 40.
  • [7] D.H. Lee, D. Kiritsis, P.Xirouchakis, 2001; Branch and Fathoming Algorithms for Operation Sequencing in Process Planning, International Journal of Production Research, Vol.39, No.8, pp.1649-1669.
  • [8] D. An, H.R. Leep, H.R. Parsaei, and A.P. Nyaluke, 1995; A Product Data Exchange Integration Structure Using PDES/STEP for Automated Manufacturing Applications, Computer Industial Engineering, Vol. 29, No.1-4, pp.711-715, Elsevier.
  • [9] P. Mangesh, R.N, Bhandarkar, 2000; STEP-Based Feature Extraction from STEP Geometry for Agile Manufacturing, Computers In Industry, Vol.41, pp.3-24, Elsevier.
  • [10] X.W. Xu, H. Wang, J. Mao, S.T. Newman, T.R. Kramer, F.M. Proctor, and J.L. Mıchaloski, 2005; STEP-compliant NC research: the search for intelligent CAD/CAPP/CAM/CNC integration, International Journal of Production Research, Vol.43, pp.3703–3743.
  • [11] ISO 10303-11 Description Methods: The EXPRESS Language Reference Manual.
  • [12] X.G. Ming, K.L. Mak, J.Q. Yan, 1998; A PDES/STEP-Based Information Model for Computer-Aided Process Planning, Robotics and Computer-Integrated Manufacturing, Vol.14, pp.347-361.
  • [13] K. Hilary, F. Nick, W. Alan, W. Nigel, 2001; A Generic Framework for Transforming EXPRESS İnformation Models, Computer Aided Design, Vol.33, pp.501-510, Elsevier.