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| Content Provider | African Journals Online (AJOL) |
|---|---|
| Author | A Djebala MK Babouri N Ouelaa |
| Abstract | L’influence de l’usure des outils coupants sur la qualité de l’état de surface demeure un problème principal dans un procédé d'usinage. La surveillance des processus d'usinage joue alors un rôle très important pour éviter l'apparition de certains phénomènes non désirés, tels que l'usure excessive et la rupture de l'outil. Dans ce travail, nous proposons une méthode de surveillance basée conjointement sur l'analyse temporelle et l'analyse fréquentielle des signaux mesurés en tournage pour identifier l’usure de l’outil. Les objectifs principaux de ce travail sont de montrer, d’une part, la sensibilité d'indicateurs scalaires à la variation de l'usure et d’autre part de déterminer plusieurs indicateurs de l’usure à l’image des fréquences caractéristiques, du niveau vibratoire et des changements brusques qui permettent de déceler l’endommagement de l’outil de coupe. Cette dernière étude fréquentielle est basée sur une analyse multirésolution en ondelettes. Les résultats obtenus et présentés dans cet article, montrent l'efficacité de ces approches en tournage.Mots-clés : Usure d’outil- Effort de coupe - Signatures vibratoires - Indicateurs scalaires - Analyse fréquentielle- Analyse multirésolution en ondelettes. |
| Ending Page | 134 |
| Starting Page | 123 |
| File Format | |
| ISSN | 11114924 |
| e-ISSN | 23529717 |
| Journal | Synthèse: Revue des Sciences et de la Technologie |
| Volume Number | 24 |
| Language | English French |
| Publisher Date | 2015-06-02 |
| Access Restriction | Open |
| Subject Keyword | Usure d’outil- Effort de coupe - Signatures vibratoires - Indicateurs scalaires - Analyse fréquentielle- Analyse multirésolution en ondelettes. Biology Life Sciences General Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry, Genetics and Molecular Biology Biotechnology Molecular Biology Decision Sciences |
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