Prediction of local sintering in laser beam machining of green Y-TZP ceramic
| Autor: | Edouard Rivière-Lorphèvre, Anthonin Demarbaix, Bert Lauwers, François Ducobu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Materials science Mechanical Engineering Laser beam machining Sintering Material removal 02 engineering and technology Industrial and Manufacturing Engineering Y tzp ceramic Finite element method 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering visual_art Thermal visual_art.visual_art_medium Ceramic Composite material Laser beams |
| Zdroj: | CIRP Annals. 69:225-228 |
| ISSN: | 0007-8506 |
| DOI: | 10.1016/j.cirp.2020.04.051 |
| Popis: | Laser beam machining of Y-TZP engineering ceramic material is carried out in green stage to increase the material removal rate. The generation of hot spots may cause local sintering of the ceramic material leading to a decrease of the mechanical properties of the final sintered component. This paper presents the implementation of alternative laser beam paths to reduce the hot spots occurrence. A thermal finite element model has been developed to support the experimental analysis as well as the prediction of local sintering. The experimental validation of the newly developed toolpath strategies confirmed the reduction of local sintering. |
| Databáze: | OpenAIRE |
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