CNC polishing machines use multi-axis control and abrasive wheels, belts, or pads to automate surface finishing. They process metals, plastics, glass, and stone for applications including automotive parts, medical implants, molds, and consumer electronics.
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Challenges include tool path programming and consumable wear monitoring. Nevertheless, force-controlled spindles, adaptive polishing algorithms, and in-process surface measurement are improving consistency, reducing cycle times, and eliminating manual finishing labor.