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CNC finishing machining of blade Finally, the surface quality of the blade after the adaptive CNC machining process is obtained based on the on-machine measurement and the three-dimensional (3D) morphology. The 3D morphology of the blade surface under the clamping force and the milled surface is measured to determine whether local damage occurs. The 3D white light interference surface topography instrument is used to measure the microtopography of the blade surface. The 3D white light interference surface topography instrument is based on the non-contact white light scanning interference principle. The device uses closed-loop feedback piezoelectric ceramics and high linear capacitance sensors to ensure that the precision testing is in the full range of 0.1-150 μm, the repeatability of the RMS is 0.005 nm, the resolution is 0.1 nm, and the surface roughness test accuracy is less than Ra 0.1 nm. The 10x lens group is used in this experiment.
Source publication
This study proposes an adaptive CNC machining process based on on-machine measurement to control the machining error of near-net-shaped blades. The multi-source and multi-process machining error transmission model of a near-net-shaped blade is established, and the reduction effect of the machining error transmission chain by the adaptive CNC machin...
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