This paper reports ongoing research on the use of the evolving ISO 14649 standard, informally termed STEP-NC, which represents a new data model for the next generation of computer numerical controllers. The paper presents the major challenges in implementing STEP-compliant CAD/CAM (computer-aided design/manufacture) systems for manufacturing asymmetric rotational parts. It also discusses the need for a new ISO 14649 schema specific for asymmetric rotational parts and outlines a feasible solution to use the ISO 14649 data model for turn/mill machining.
KemmererS. J. (Ed.) STEP. The Grand Experience, July 1999 (Manufacturing Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland).
2.
ISO 10303-1 Industrial Automation Systems and Integration—Product Data Representation and Exchange. Part 1. Overview and Fundamental Principles, 1994 (International Organization for Standardization, Geneva, Switzerland).
3.
ISO/FDIS 14649-1 Industrial Automation Systems and Integration—Physical Device Control—Data Model for Computerized Numerical Controllers—Part 1: Overview and Fundamental Principles, November 2002 (International Organization for Standardization, Geneva, Switzerland).
4.
WeckM.WolfJ.KiritisD.STEP-NC—the STEP compliant NC programming interface: Evaluation and improvement of the modern interface. In IMS Forum, Ascona, Switzerland, October 2001.
5.
STEP-NC Project, ESPRIT Project EP 29708; STEP-Compliant Data Interface for Numerical Controls (STEP-NC) In STEP-NC Newsletter, Issue 3, November 2000; also available in the URL: http://www.step-nc.org on 11 November 2003.
6.
STEP-NC Project, EC, GROWTH Project IMS STEP-NC (STEP-NC). In STEP-NC Newsletter, Issue 5, September 2003; also available in the URL: http://www.step-nc.org on 11 November 2003.
7.
KlemmP.HeusingerS.Einheitliche Datenbasis in der Prozesskette—STEP-NC basiertes NC Planung in der Komplettbearbeitung steigert die Effizienz im Produktionsablauf. Maschinenmarkt—Das Industriemagazin, 2003, 39, 24–27.
8.
KlemmP.HeusingerS.Planungsfehler werden Vermieden—STEP-NC Basiertes Programmieren der Komplettbearbeitung auf Dreh-Fraszentren verkurst Programmiertzeiten. Maschinenmarkt—Das Industriemagazin, 2003, 45, 26–29.
9.
RossoR. S. U.Jr.NewmanS. T.Estrutura de Dados para Sistemas CAD/CAM aderente à STEP. In VI Congresso Ibero-Americano de Engenharia Mecânica, Universidade de Coimbra, Coimbra, Portugal, 15–18 October 2003, Vol. 2, pp. 1019–1024.
10.
Yamazaki Mazak Corp.Slant Turn 40N ATC Mill Center, Publicity Material, Yamazaki Machinery UK Limited, 1994.
11.
ISO/FDIS 14649-10 Industrial Automation Systems and Integration–Physical Device Control–Data Model for Computerized Numerical Controllers–Part 10: General Process Data, November 2002 (International Organization for Standardization, Geneva, Switzerland).
12.
ISO/FDIS 14649-11 Industrial Automation Systems and Integration–Physical Device Control–Data Model for Computerized Numerical Controllers–Part 11: Process Data for Milling, November 2002 (International Organization for Standardization, Geneva, Switzerland).
13.
ISO/DIS 14649-12 Industrial Automation Systems and Integration–Physical Device Control–Data Model for Computerized Numerical Controllers–Part 12: Process Data for Turning, 28 February 2003 (International Organization for Standardization, Geneva, Switzerland).
14.
ISO/FDIS 14649-111 Industrial Automation Systems and Integration–Physical Device Control–Data Model for Computerized Numerical Controllers–Part 111: Tools for Milling, 28 September 2000 (International Organization for Standardization, Geneva, Switzerland).
15.
ISO/DIS 14649-121 Industrial Automation Systems and Integration–Physical Device Control–Data Model for Computerized Numerical Controllers–Part 121: Tools for Turning, 28 February 2003 (International Organization for Standardization, Geneva, Switzerland).
16.
Tavakoli BinaA.Feature based workshop oriented NC planning for asymmetric rotational parts. PhD thesis, Department of Manufacturing Engineering. Loughborough University, March 1993.
17.
ISO 6983/1 Numerical Control of Machines–Program Format and Definition of Address Words–Part 1: Data Format for Positioning, Line and Contouring Control Systems, 1st edition, 15 September 1982 (International Organization for Standardization, Geneva, Switzerland).
18.
ProctorF. M.MichaloskiJ. L.ShacklefordW. P.Typing together design, process planning and machining with STEP-NC technology. In the Fifth Biannual World Automation Congress, Orlando, Florida, February 2002; also in Robotics, Manufacturing, Automation and Control, 2002, Vol. 14, pp. 33–38 (TSI Press, Albuquerque, New Mexico).
19.
RossoR. S. U.Jr.AllenR. D.NewmanS. T.Future issues for CAD/CAM and intelligent manufacture. In Proceedings of the 19th International Manufacturing Conference (IMC-19), Queen's University Belfast, Belfast, Northern Ireland, 28–30 August 2002, pp, 115–124.
20.
NewmanS. T.AllenR. D.RossoR. S. U.Jr.CAD/CAM solutions for STEP compliant CNC manufacture. Int. J. Computer Integrated Mfg, 2003, 16 (7-8), 590–597.
21.
Mazatrol Fusion 640, Publicity Material, Yamazaki Mazak Comapny Limited; also available in the URL: http://www.mazakusa.com/ on 1 December 2003.
22.
ISO 10303-11 Industrial Automation Systems and Integration—Product Data Representation and Exchange—Part 11: Description Methods: The EXPRESS Language Reference Manual, 1st edition, 15 December 1994, Corrigendum 1, 1999 (International Organization for Standardization, Geneva, Switzerland).
23.
ISO/CD 10303-238 Industrial Automation Systems and Integration—Product Data Representation and Exchange—Part 238: Application Protocol: Application Interpreted Model for Computerized Numerical Controllers, 3 June 2002 (International Organization for Standardization, Geneva, Switzerland).
24.
WolfJ.Requirements in NC machining and use cases for STEP-NC–Analysis of ISO 14649 (ARM) and AP 238 (AIM). In ISO T24 STEP-Manufacturing Meeting, San Diego, California, 7 March 2003, White Paper.
25.
FeeneyA. B.KramerT.ProctorF.HardwickM.LoffredoD.STEP-NC implementation–ARM or AIM? In ISO T24 STEP-Manufacturing Meeting, San Diego, California, 7 March 2003, White Paper.
26.
ISO 10303 Industrial Automation Systems and Integration—Product Data Representation and Exchange—Part 224: Application Protocol: Mechanical Product Definition for Process Planning Using Machining Features, December 2000 (International Organization for Standardization, Geneva, Switzerland).
