Investigation of alumina pellets for optical glass grinding

• Autorzy: Bouzid D. , Belkhir N.
• Języki publikacji: EN

Abstrakty

EN

Purpose: is investigation of alumina pellets for optical glass grinding from a mixture made of an abrasive powder of high purity α alumina and of a binding vitreous material. Design/methodology/approach: The different manufacturing tests on the pellets tools made it possible to optimize certain parameters. This remains, however, insufficient to obtain a tool with optimal efficiency. It is in fact; difficult to simultaneously take into account all of the manufacturing parameters. Findings: The sizes of the grains, the densification loading and the firing duration have an influence on the quality of the ground surface, on the amount of material removed and on the porosity of the pellets, a characteristic, that determines their lifetime. Researches limitations/implications: The weak resistance to wear of the coarse and fine tools can be explained by the grains becoming detached from the binding matrix during the grinding process. The used grains are blunted during the grinding process. Originality/value: An optimal combination of grinding process parameters was found for each phase of the glass grinding (coarse, medium and fine grinding).

Słowa kluczowe

EN

optical glass; alumina; abrasive; grinding; polishing

PL

szkło optyczne; tlenek glinu; ścieralność; rozdrabnianie; polerowanie

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2014
• Tom: Vol. 67, nr 1
• Strony: 14--17
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Bouzid D.

• Applied Optics Laboratory IOMP, University SETIF1, Algeria

autor

Belkhir N.

• Applied Optics Laboratory IOMP, University SETIF1, Algeria

Bibliografia

• [1] D.F. Edwards, P.P. Hed, Optical glass fabrication technology 1, fine grinding mechanism using bound diamond abrasives, Applied Optics 26/21 (1987) 4670-4676.
• [2] F.W. Preston, Chemical and physico-chemical reactions in the grinding and polishing of glass, Society of Glass Technology 4 (1923) 127.
• [3] N. Belkhir, D. Bouzid, V. Herold, Correlation between the surface quality and the abrasive grains wear in optical glass lapping, Tribology International 40/3 (2007) 498-502.
• [4] N. Belkhir, D. Bouzida, V. Herold, Wear behavior of the abrasive grains used in optical glass polishing, Journal of Materials Processing Technology 209/20 (2009) 6140-6145.
• [5] N. Belkhir, Characterization of glass surface damaged by alumina abrasive grains, Journal of Non-Crystalline Solids 357/15 (2011) 2882-2887.
• [6] D. Bouzid, R. Zegadi, U. Jungstand, V. Herold, Investigation of cerium oxide pellets for optical glasspolishing, Society of Glass Technology 42 (2001) 60-62.
• [7] D. Bouzid, N. Belkhir, T. Aliouane, Optical glass surfaces polishing by cerium oxide particles, Materials Science and Engineering 28/01 (2012) 012007.
• [8] W. König, N. Koch, Grinding of optical glasses with cup wheels, Glastechn. Ber. 62 (1989) 358