quick tool wear and premature failure are usual in the machining operations of metal matrix composite (MMC); such phenomena occur due to the presence of hard abrasive ceramic component which increases the mechanical characteristics. In the present paper the cutting performances of high rake angle carbide tools and of their diamond coated versions are compared in the high-speed lathe-turning of an Al2O3/Al 6061 MMC. Furthermore, the results of some drilling experiments are reported, carried out with HHs drills and their TiN coated versions. The influence of the cutting parameters, in particular cutting feed and speed, on tool wear and surface finish has been investigated. the higher abrasion resistance of the coatings results in increased tool life performances and different chip formation mechanisms.
High-speed turning and drilling experiments on metal matrix composites / Iuliano, L.; Settineri, L.; Gatto, Andrea. - In: BULLETIN DU CERCLE D'TUDES DES MTAUX. - ISSN 0366-4104. - STAMPA. - 18Tome XVI:(1998), pp. 17.1-17.9.
High-speed turning and drilling experiments on metal matrix composites
GATTO, Andrea
1998
Abstract
quick tool wear and premature failure are usual in the machining operations of metal matrix composite (MMC); such phenomena occur due to the presence of hard abrasive ceramic component which increases the mechanical characteristics. In the present paper the cutting performances of high rake angle carbide tools and of their diamond coated versions are compared in the high-speed lathe-turning of an Al2O3/Al 6061 MMC. Furthermore, the results of some drilling experiments are reported, carried out with HHs drills and their TiN coated versions. The influence of the cutting parameters, in particular cutting feed and speed, on tool wear and surface finish has been investigated. the higher abrasion resistance of the coatings results in increased tool life performances and different chip formation mechanisms.
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
