Tear-off Wear Mechanism of Sintered Diamond Tool in Cutting SiC Particle-strengthened Epoxy Composite
Yükleniyor...
Tarih
1997-06
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Pub.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study concerns the wear of sintered diamond tools in the cutting of SiC-particle–epoxy composites. The effects of the SiC particle
size, volume ratio in the composite and diamond grain size of the cutting tool on tool wear were investigated. The experimental work has
shown that a coarse-grained diamond tool exhibits higher wear resistance than a corresponding fine-grained tool. Greater tool wear was
obtained in cutting the composites that had coarser particles and a higher volume ratio of SiC. Moreover, it was found that the tool wear
increases drastically when the SiC particles are larger than the tool grains. A wear model of the tool was proposed, in which the tool is worn
mainly by the ‘tear-off’ mechanism of the diamond grains. This model could explain the experimental results by comparing the pushing force
of an SiC particle with the tear-off resistance of the diamond grains of the tool. Finally, a fatigue-like empirical curve was established. This
curve can be used to predict the wear of the tool during cutting of the composite. q 1997 Elsevier Science S.
Açıklama
Anahtar Kelimeler
Dispersion-strengthened composite; Plastic composite; Silicon carbide particle; Sintered diamond tool; Cutting; Tool wear; Tear-off mechanism
Kaynak
Journal WEAR
WoS Q Değeri
Scopus Q Değeri
Cilt
WEAR No. 206
Sayı
206
