CIRP Encyclopedia of Production Engineering

2019 Edition
| Editors: Sami Chatti, Luc Laperrière, Gunther Reinhart, Tullio Tolio

Geometric Modeling of Machining

  • Volker BoessEmail author
Reference work entry



Theory of data structures for representation of geometrical objects within a computer for the purpose of virtual investigation of machining processes (Altintas et al. 2005). Only geometric aspects are considered, but investigation of physical processes (e.g., forces or temperatures) is possible as long as they can be derived from geometric data.

Theory and Application

From a strictly geometric view, a machining process can be described as the movement of a cutting tool relative to a workpiece. If the track of the tool intersects with the workpiece, the intersected part has to be removed from the shape of the workpiece.

To create a virtual representation of machining processes within computers, a description of the movement as well as geometric models of the workpiece and the tool is necessary. To include the change of the shape of the workpiece caused by intersection of the moving tool, it is necessary to use...

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  1. Altintas Y, Brecher C, Weck M, Witt S (2005) Virtual machine tool. CIRP Ann Manuf Technol 54(2): 115–138CrossRefGoogle Scholar
  2. Denkena B, Böß V (2009) Technological NC simulation for grinding and cutting processes using cutS. In: Arrazola PJ (ed) Proceedings of the 12th CIRP conference on modelling of machining operations, 7–8 May 2009, vol II. Donostia-San Sebastián, pp 563–566Google Scholar
  3. Denkena B, Tönshoff HK (2013) Chapter 6: modeling and simulation. In: Basics of Cutting and Abrasive processes. Lecture notes in production engineering. Springer-Verlag Berlin Heidelberg.
  4. Weinert K, Stautner M (2002) An efficient discrete simulation for five-axis milling of sculptured surfaces. Ann Germ Acad Soc Prod Eng IX(1):47–51Google Scholar

Copyright information

© CIRP 2019

Authors and Affiliations

  1. 1.Institut für Fertigungstechnik und WerkzeugmaschinenLeibniz Universität HannoverGarbsenGermany

Section editors and affiliations

  • Garret O'Donnell
    • 1
  1. 1.Trinity College DublinDublinIreland