Abstract
The diamond wheel wear mechanism and its impact on the surface generation of RB-SiC/Si carbide under parallel grinding were investigated. The machined surface was mainly characterized by surface fracture and diamond grits scratched plastic grooves, and the surface finish of the machined RB-SiC/Si improved with decreasing feed rate. But the non-uniform surface appeared due to the varied material removal rate at different radial position for a certain workpiece. Both macro- and micro-wheel wear occurred during grinding, and the macro-wheel wear appeared in the form of profile deviation and rapid loss of sharp edge, which contributed to the appearance of cone shape at the center of workpiece. Power spectrum analysis by Fast Fourier Transformation (FFT) confirmed the significant influence of micro-wheel wear on surface generation, which involved random diamond grit splintering, abrasive flattening, grain dislodgement and graphitization.
Original language | English |
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Pages (from-to) | 16-23 |
Number of pages | 8 |
Journal | Diamond and Related Materials |
Volume | 74 |
DOIs | |
Publication status | Published - 1 Apr 2017 |
Keywords
- Diamond grinding
- RB-SiC/Si
- Surface generation
- Wheel wear
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Chemistry
- Mechanical Engineering
- General Physics and Astronomy
- Materials Chemistry
- Electrical and Electronic Engineering