RT journal article
T1 On the Machinability of an Al-63%SiC Metal Matrix Composite
A1 Repeto García, David
A1 Fernández Vidal, Severo Raúl
A1 Mayuet Ares, Pedro Francisco
A1 Salguero Gómez, Jorge
A1 Batista Ponce, Moisés
A2 Ingeniería Mecánica y Diseño Industrial
K1 etal matrix composite
K1 Al-SiC
K1 microstructure
K1 machining
AB This paper presents a preliminary study of aluminium matrix composite materials duringmachining, with a special focus on their behavior under conventional processes. This work willexpand the knowledge of these materials, which is considered to be strategic for some industrialsectors, such as the aeronautics, electronics, and automotive sectors. Finding a machining modelwill allow us to define the necessary parameters when applying the materials to industry. As aprevious step of the material and its machining, an experimental state-of-the-art review has beencarried out, revealing a lack of studies about the composition and material properties, processes,tools, and recommended parameters. The results obtained and reflected in this paper are as follows;SiC is present in metallic matrix composite (MMC) materials in a very wide variety of sizes. Ametallographic study of the material confirms the high percentage of reinforcement and very highmicrohardness values registered. During the machining process, tools present a very high level ofwear in a very short amount of time, where chips are generated and arcs are segmented, revealing thehigh microhardness of the material, which is given by its high concentration of SiC. The chip shape isthe same among other materials with a similar microhardness, such as Ti or its alloys. The forcesregistered in the machining process are quite di erent from conventional alloys and are more similarto the values of harder alloys, which is also the case for chip generation. The results coincide, in part,with previous studies and also give new insight into the behavior of this material, which does notconform to the assumptions for standard metallic materials, where the hypothesis of Sha er is notdirectly applicable. On the other hand, here, cutting forces do not behave in accordance with thetraditional model. This paper will contribute to improve the knowledge of the Al-63%SiC MMC itselfand the machining behavior.
PB MDPI
SN 1996-1944
YR 2020
FD 2020-03
LK http://hdl.handle.net/10498/22874
UL http://hdl.handle.net/10498/22874
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026