Tool-life and wear mechanisms of CBN tools in machining of Inconel 718
| Autor: | Jean-Philippe Costes, Gérard Poulachon, Yoann Guillet, Michel Dessoly |
|---|---|
| Přispěvatelé: | Laboratoire Bourguignon des Matériaux et Procédés (LABOMAP), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
0209 industrial biotechnology
Materials science CBN Turning Aerospace materials Inconel 718 02 engineering and technology Industrial and Manufacturing Engineering Diffusion chemistry.chemical_compound 020901 industrial engineering & automation Mécanique: Génie mécanique [Sciences de l'ingénieur] Machining Ceramic Tool wear Inconel Insert (composites) Mechanical Engineering Metallurgy 021001 nanoscience & nanotechnology [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] Superalloy chemistry Boron nitride visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | International Journal of Machine Tools and Manufacture International Journal of Machine Tools and Manufacture, 2007, 7-8, pp.1081-1087. ⟨10.1016/j.ijmachtools.2006.09.031⟩ |
| DOI: | 10.1016/j.ijmachtools.2006.09.031⟩ |
| Popis: | International audience; The demand for increasing productivity when machining heat resistant alloys has resulted in the use of new tool materials such as cubic boron nitride (CBN) or ceramics. However, CBN tools are mostly used by the automotive industry in hard turning, and the wear of those tools is not sufficiently known in aerospace materials. In addition, the grade of these tools is not optimized for superalloys due to these being a small part of the market, although expanding (at 20% a year). So this investigation has been conducted to show which grade is optimal and what the wear mechanisms are during finishing operations of Inconel 718. It is shown that a low CBN content with a ceramic binder and small grains gives the best results. The wear mechanisms on the rake and flank faces were investigated. Through SEM observations and chemical analysis of the tested inserts, it is shown that the dominant wear mechanisms are adhesion and diffusion due to chemical affinity between elements from workpiece and insert. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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