Abstract
In the context of tolerance allocation in process planning, our interest has focused onto manufacturing defects 3D modeling. This paper presents two approaches towards geometrical manufacturing simulation. The concept of small displacement torsor is used in order to model geometrical defects of part surfaces. The first approach uses a CAD modeler in order to extract the geometrical data for mathematical processing using a symbolic computational software. The model that we developed for manufacturing considers each manufacturing set-up as a single mechanism. A chart representation has been defined to express the geometrical manufacturing conditions of the process plan as a torsor chain. The second approach uses the features of an industrial CAD/CAM system in order to reproduce and industrialize this model. Then we carry out a virtual numerical metrology of the model thus obtained. Through examples, we present comparisons of numerical results from both applications. The approaches converge towards the same results. Finally we propose a comparison table which enables to identify the advantages of each of the two approaches.
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Tichadou, S., Legoff, O., Hascoet, JY. (2005). 3D Geometrical Manufacturing Simulation. In: Bramley, A., Brissaud, D., Coutellier, D., McMahon, C. (eds) Advances in Integrated Design and Manufacturing in Mechanical Engineering. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3482-2_16
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DOI: https://doi.org/10.1007/1-4020-3482-2_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-3481-7
Online ISBN: 978-1-4020-3482-4
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