Computer Science – Computational Engineering – Finance – and Science
Scientific paper
2007-11-14
Dans Proceedings of the 10th CIRP International Seminar on Computer Aided Tolerancing - 10th CIRP International Seminar on Com
Computer Science
Computational Engineering, Finance, and Science
Scientific paper
Making a product conform to the functional requirements indicated by the customer suppose to be able to manage the manufacturing process chosen to realise the parts. A simulation step is generally performed to verify that the expected generated deviations fit with these requirements. It is then necessary to assess the actual deviations of the process in progress. This is usually done by the verification of the conformity of the workpiece to manufacturing tolerances at the end of each set-up. It is thus necessary to determine these manufacturing tolerances. This step is called "manufacturing tolerance synthesis". In this paper, a numerical method is proposed to perform 3D manufacturing tolerances synthesis. This method uses the result of the numerical analysis of tolerances to determine influent mall displacement of surfaces. These displacements are described by small displacements torsors. An algorithm is then proposed to determine suitable ISO manufacturing tolerances.
Vignat Frédéric
Villeneuve François
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