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Amélioration de la qualité des pièces usinées par interpolation directe du trajet sur surface

Abstract : Despite recent advances in technology and software, the High Speed Machining process of complex surfaces still has challenges to achieve simultaneously productivity and high surface quality. Two of them are the tool path generation and its treatment by the numerical controller during real-time interpolation. To date, the classical solution "CAM-CNC" imposes breaks in the digital chain, limiting the final results that are really reached. This paper proposes a unified method, named DTIS (Direct Trajectory Interpolation on the Surface), for multi-axis tool paths generation and interpolation within a HSM context. It avoids the geometrical deviations related to the description format of the tool path and to their jerk limited interpolation. Thanks to the development of an open CNC on the LURPA's 5-axis high speed machining center, it is possible to evaluate the improvements provided by such an approach compared to the usual process.
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https://hal.archives-ouvertes.fr/hal-01096699
Contributor : Sylvain Lavernhe Connect in order to contact the contributor
Submitted on : Thursday, December 18, 2014 - 8:27:30 AM
Last modification on : Monday, January 17, 2022 - 6:46:02 PM
Long-term archiving on: : Monday, March 23, 2015 - 4:33:06 PM

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  • HAL Id : hal-01096699, version 1

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Sylvain Lavernhe, Xavier Beudaert, Christophe Tournier. Amélioration de la qualité des pièces usinées par interpolation directe du trajet sur surface. Machines et Usinage à Grande Vitesse 2014, Oct 2014, Clermont-Ferrand, France. ⟨hal-01096699⟩

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