Geometrical tolerancing in process planning: A tridimensional approach

Olivier Legoff, François Villeneuve, P. Bourdet

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture · 1999 · 27 citations · 1 references

Concepts

Abstract

A method to perform tridimensional analysis and tridimensional synthesis of machining tolerances is presented. The model relies on the small displacement torsor concept and on the computer aided tolerancing approach. The link between process planning and functional tolerances with torsor chains according to workpiece set-ups is exposed. An example shows how the model is used to determine automatically geometrical variations of the workpiece knowing geometrical variations of each part (part-holder, positioning devices, machined surfaces, etc.).

References

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