Particulate reinforced metal matrix composites (PMMCs) based on aluminium alloys are used in automotive industry because of their low cost and improved mechanical properties at high temperature. Automotive producers are testing prototypes in aluminium PMMCs such as brake disk and drum, callipers, piston and cylinder liners. For many components the production of a good surface finish is essential and therefore will necessitate some machining. The presence of hard abrasive ceramic particulates results in rapid tool wear and high machining cost. Today, this cost effective problem is the main obstacle to aluminium PMMCs wider acceptance in the automotive market. Machining practices have not been optimised, but some studies have stated that roughing with carbide tools (especially uncoated WC tools) and finishing with polycrystalline diamond (PCD) tools are the most economical way in machining aluminium PMMCs. This paper presents results about the factors affecting tool wear when machining with different carbide tools, in order to estimate their influence in the cost of machining this class of materials.


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    Title :

    Machining of advanced materials for automotive components


    Additional title:

    Bearbeitung fortschrittlicher Werkstoffe für Automobilbauteile


    Contributors:
    Diaz, V. (author) / Miguelez, M.H. (author) / Cantero, J.L. (author) / Filippone, G. (author)


    Publication date :

    2001


    Size :

    5 Seiten, 9 Bilder, 4 Tabellen, 13 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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