Microphotographs of textured grooves and the measured surface profiles along the cutting direction of tungsten carbide created with elliptical vibration cutting for (a) sinusoidal (60 Hz), (b) ramp (42 Hz), (c) ramp (84 Hz), (d) zigzag (42 Hz), and (e) zigzag (84 Hz) [93] (Reprinted with permission from Elsevier © 2014)
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