Open AccessInvestigation on diamond turning of silicon crystal - generation mechanism of surface cut with worn tool
Author(s) -
Renato Goulart Jasinevicius,
Jaime Gilberto Duduch,
Arthur José Vieira Porto
Publication year - 2001
Publication title -
revista brasileira de ciências mecânicas
Language(s) - English
Resource type - Journals
ISSN - 0100-7386
DOI - 10.1590/s0100-73862001000200010
Subject(s) - diamond turning , diamond tool , enhanced data rates for gsm evolution , materials science , rake angle , diamond , rake , scanning electron microscope , tool wear , diamond cutting , mechanism (biology) , composite material , metallurgy , machining , mechanical engineering , computer science , engineering , telecommunications , philosophy , epistemology
This paper discusses the effect of tool wear on surface finish in single-point diamond turning of single crystal silicon. The morphology and topography of the machined surface clearly show the type of cutting edge wear reproduced onto the cutting grooves. Scanning electron microscopy is used in order to correlate the cutting edge damage and microtopography features observed through atomic force microscopy. The possible wear mechanisms affecting tool performance and surface generation during cutting are also discussed. The zero degree rake angle single point diamond tool presented small nicks on the cutting edge. The negative rake angle tools presented more a type of crater wear on the rake face. No wear was detected on flank face of the diamond tools