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Méthodologie de conception d'outillages modulaires hybrides basée sur l'évaluation quantitative de la complexité de fabrication

Abstract : In order to stay competitive, manufacturers have to develop new products in a very short time and with reduced costs, whereas customers require more and more quality and flexibility. The field of tooling (dies and molds) does not break these constraints and one possibility to improve competitiveness is to design and manufacture tools with modular and hybrid points of views. Instead of a one-piece tool, it is seen as a 3-D puzzle with modules realized separately and further assembled.

With the modular point of view, every module may be produced simultaneously and few modules may be changed without changing the whole tool. In the hybrid point of view, tools are decomposed into modules which will be manufactured by the best process, in term of time, cost and quality. Presently, focus is put on comparison between a subtractive process (High-Speed Machining) and an additive process (Selective Laser Sintering). Nowadays, a number of additive fabrication technologies are used to produce metal parts and tools. These technologies provide an interesting alternative to CNC machining, especially in quickly manufacturing complex shapes.

This work concerns the development of a new hybrid modular tooling design methodology. The aim of this new methodology is to propose a hybrid modular decomposition of the tool which facilitates its manufacturing. So two points have to be taken into account: the evaluation of the manufacturability of the tool at the design stage, and a hybrid modular decomposition that can decrease the manufacturing complexity. Therefore, manufacturability indexes have been created, there are calculated and compared in order to show the improvements between the first design and the hybrid modular one.

A procedure has been developed to evaluate manufacturing complexity form a tool CAD model, with the calculation of manufacturability indexes. The work has been carried out on CAD software. The methodology is applied on industrial dies from automotive industry.
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Contributor : Olivier Kerbrat <>
Submitted on : Monday, December 7, 2009 - 10:19:19 PM
Last modification on : Wednesday, December 19, 2018 - 3:02:03 PM
Long-term archiving on: : Thursday, June 17, 2010 - 8:30:37 PM

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  • HAL Id : tel-00439589, version 1

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Olivier Kerbrat. Méthodologie de conception d'outillages modulaires hybrides basée sur l'évaluation quantitative de la complexité de fabrication. Mécanique [physics.med-ph]. Ecole Centrale de Nantes (ECN), 2009. Français. ⟨tel-00439589⟩

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