The Effect of Cutting Tool Wear Behaviors on Feed Rates in Turning of Metal Matrix Composites

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Tarih

2014

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Gazi Univ

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Composite materials, one of them is metal matrix composites (MMCs), is a group of engineering materials who seapplication fields expandrapidly. In this study, to make an interpretation on machinability of MMCs materials, MMC smaterials reinforced Al matrix and MgO which were produced in 5%, 10% and 15% reinforcement-volumeratios (R-V) were subjected to machining tests by carbide (C) and coated carbide (CC) cutting tools. Machining tests were conducted with 300 m/dak cutting speed, at three different feed rates (0.075, 0.15 and 0.225 mm/dev) and fixed depth of cut (1 mm). After the machining tests, wear characteristics were examined by the help of scanning electron microscope (SEM) views of cutting tools and the findings were discussed. In the evaluation of SEM views of cutting tools, the built up edge(BUE) was observed at the head of all cutting tools. As not being within the tool life bound, it is deduced that with the increase in feed rate, a trace of flank wear mechanism on C cutting tools were detected. Generally it is deduced that while CC tools reveal better performance, with regard to tool costs, C tools could be used to operate this kind of MMC smaterials.

Açıklama

Anahtar Kelimeler

Metal Matrix Composites (MMCs); Machinability; MgO; Tool wear; Built up edge (BUE)

Kaynak

Journal of Polytechnic-Politeknik Dergisi

WoS Q Değeri

N/A

Scopus Q Değeri

Cilt

17

Sayı

3

Künye