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Abstract: A multiple data dependent systems (MDDS) method is
presented which provides a component by component wavelength
decomposition of the surface roughness profiles at a finite number of
radial sections of the workpiece. The characteristics of these
wavelength components are correlated to different surface generation
mechanisms. Their relative powers are used to measure the contributions
of the mechanisms to the total roughness. Since the localised cutting
dynamics are taken into account, the method resolves the shortcomings of
conventional DDS and FFT spectrum analysis methods in characterising the
localised variation of the material properties, cutting dynamics and
surface roughness in SPDT.
Key words: Cutting dynamics Data dependent systems method Vibration
Ultraprecision diamond turning Surface generation
CLC No: TH165
香港特别行政区研究资助委员会资助项目(PolyU5188/01E). Received 20021009, received in
revised form 20030331
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