A FIRST APPROACH FOR RAPID COPYING OF FREE-FORM SURFACES IN 5-AXIS MACHINING - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2006

A FIRST APPROACH FOR RAPID COPYING OF FREE-FORM SURFACES IN 5-AXIS MACHINING

Résumé

The paper deals with the various steps of free-form copying from surface acquisition to machining using 5 « positioned » axes. The originality of the proposed approach is to be free from surface reconstruction. The object surface acquisition is performed using an optical digitizing system in order to obtain a representative image of the real surface. Relative positions and orientations sensor/surface are chosen to guarantee the completeness of the digitized points as regards the whole object surface. The next step concerns the pre-processing of the points. Indeed, the data are discrete, non homogeneous, dense and noisy. Cleaning, filtering and densification are essential steps. A voxel representation of the data is carried out with the objective to recreate " pseudo-continuity ". Therefore, the calculation of local characteristics such as local normal to the discrete data is thus possible. The last step is the choice of optimal part setups for the machining using 5 positioned axes. To initialize the automatic research of the best setup , each relative orientation sensor/surface may define one setup. For each setup , the trajectory of the ball-en cutter tool is calculated in 3 axes, using the offset inverse method. The feasibility of the whole approach is illustrated through an example
Fichier principal
Vignette du fichier
P0083paper.pdf (288.4 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01226738 , version 1 (10-11-2015)

Identifiants

  • HAL Id : hal-01226738 , version 1

Citer

Pierre Breteau, François Thiébaut, Pierre Bourdet, Claire Lartigue. A FIRST APPROACH FOR RAPID COPYING OF FREE-FORM SURFACES IN 5-AXIS MACHINING. Conference on Integrated Design and Manufacturing in Mechanical Engineering (IDMME), May 2006, Grenoble, France. ⟨hal-01226738⟩
79 Consultations
33 Téléchargements

Partager

Gmail Facebook X LinkedIn More