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Purpose: Modern companies tend towards the greatest possible automation in all areas. The new control concepts of manufacturing processes required development of adequate tools for the introduction of automated control in a certain area. The paper presents such system for automated programming of CNC machine tools. Design/methodology/approach: The system is based on the previously incorporated know-how and the rules of it implementation in tool – shop. The existing manufacturing knowledge of industry tool production was collected and analysing. On this bases flow chart of all activities were made. Theoretical contribution is made in systemization of technological knowledge, which is now accessible for all workers in NC preparation units. Findings: Utilization of technology knowledge. On the basis of the recognized properties it has worked out the algorithms with which the process of manufacture, the tool and the optimum parameters selected are indirectly determined, whereas the target function was working out of the NC programme. We can first out that with information approaching of the CAM and CAPP the barriers between them, strict so far, disappear. Research limitations/implications: Till now, the system is limited to milling, drilling and similar operation. It could be extended to other machining operations (turning, grinding, wire cutting, etc.) with the same procedure. In advanced, some methods of artificial intelligence could be use. Practical implications: It is suitable for industry tools, dies and moulds production, while the system was proved in the real tool shop (production of tools for casting). The system reduces the preparation time of NC programs and could be used with any commercial available CAD/CAM/NC programming systems. Human errors are avoid or at lover level. It is important for engineers in CAD/CAM field and in tool – shops. Originality/value: The developed system is original and was not found in the literature or in the praxis. Developed method for preparation of NC programs is new and incorporate higher level of automation.
Wydawca
Rocznik
Tom
Strony
309--312
Opis fizyczny
Bibliogr. 17 poz., rys.
Twórcy
autor
- Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
Bibliografia
- [1] S. Mansour, Automatic generation of part programs for milling sculptured surfaces, Journal of Materials Processing Technology, 127 (2002) 31-39.
- [2] Pro/ENGINEER Production Machining (2006), http://www.ptc.com.
- [3] STEP-NC (2006), http://www.steptools.com/library/stepnc/.
- [4] USG NC Programming (2006), http://www.ugs.com.
- [5] EXAPT NC Planning (2006), http://www.exapt.de.
- [6] M. Jolgaf, A.M.S. Hamouda, S. Sulaiman and M.M. Hamdan, Development of a CAD/CAM system for the closed-die forging process, Journal of Materials Processing Technology 138 (2003) 436-442.
- [7] CATIA V4 Lathe Machining Programmer - LMP (2006), http://www-306.ibm.com/software.
- [8] J. Balic, Contribution to Integrated Manufacturing, (DAAAM publishing series, Manufacturing Technology, ed. B. Katalinic). Vienna: DAAAM International (1999).
- [9] S. Zietarski, System integrated product design, CNC programming and postprocessing for three-axis lathes, Journal of Materials Processing Technology, 109 (2001), 294-299.
- [10] M. Djassemi, An efficient CNC programming approach based on group technology, Journal of Manufacturing Systems, 19 (2000) 213-217.
- [11] C.R. Zhang, R.L. Liu, On CNC machining and part program preprocessing based on STEP-NC, Advances in Materials Manufacturing Science and Technology Materials Science Forum, (2004) 471-472: 326-329.
- [12] S.H. Huang, K.R. Bhura and G. Wang, Cutter path simulation and product visualization using AutoCAD, Computer Applications in Engineering Education, 8 (2000) 113-126.
- [13] J.J. Sheu, T.C. Fu, Development of an intelligent virtual reality system for high speed machining, Mater Sci. Forum, (2006) 505-507: 625-630.
- [14] K. Nakamoto, K. Shirase, A. Morishita, et al., A new architecture of tool path generation for five-axis control machining, Key Eng. Mat., (2005) 291-292: 501-506.
- [15] S.L. Omirou, A.K. Barouni, Integration of new programming capabilities into a CNC milling system, Robot CIM-int manuf, 21 (2005), 518-527.
- [16] J. Balic, M. Brezocnik, A model of intelligent CAD/CAM interface in CIM, Proceedings of the 13th International conference on production research, Jerusalem, Israel, London: Freund Publishing House, Ltd, (1995) 29-31.
- [17] J. Balic, M. Brezocnik, F. Cus, Automated CAD/CAPP/ CAM integration. V: Proceedings of the 1995 IFAC Symposium on information control problems in manufacturing, Beijing, (1995) 39-41.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-c518dee0-9662-4be9-b74b-845a2afd30cd