Densification of Atmospheric Plasma Sprayed Wear Resistant Coatings
| Autor: | W. Tillmann, E. Vogli, B. Krebs, A.E. Tekkaya, A. Brosius, V. Franzen |
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| Rok vydání: | 2009 |
| Zdroj: | International Thermal Spray Conference. |
| ISSN: | 2768-1505 2768-1491 |
| DOI: | 10.31399/asm.cp.itsc2009p1045 |
| Popis: | Thermal spray coatings produced from hard materials show good potential for extending the service life of sheet metal forming tools. However, post-process methods currently used to improve coating surface quality are slow and expensive, especially on complex surfaces. A novel approach, demonstrated in this study, is the optimization of thermally sprayed coatings by roller burnishing. This process shows a high potential to not only reduce surface roughness and porosity, but also increase hardness even on free-formed surfaces. In the experiments, atmospheric plasma-sprayed CrC-NiCr coatings were produced and the burnishing process was performed on a CNC milling machine. Both the spraying and surface finishing processes are described and the results are presented and discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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