CIRP Encyclopedia of Production Engineering

2014 Edition
| Editors: The International Academy for Production Engineering, Luc Laperrière, Gunther Reinhart

Geometric Modeling of Machining

Reference work entry



Theory of data structures for representation of geometrical objects within a computer for 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 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 shape...

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  1. Altintas Y, Brecher C, Weck M, Witt S (2005) Virtual machine tool. CIRP annals - manufacturing technology 54(2):115–138Google 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, Spain, pp 563–566Google Scholar
  3. Denkena B, Tönshoff HK (2013) Abrasive processes (Lecture notes in production engineering). Chapter 6: Modeling and simulation. SpringerGoogle Scholar
  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 2014

Authors and Affiliations

  1. 1.IFW, Leibniz Universität HannoverHannoverGermany