### Development of a Rotary Ultrasonic Machining Device and

2022 4 16 Where F p is the unit grinding force φ d is the angle between the movement direction of the abrasive grits and the tangent direction of the grinding wheel. When the feed speed V w is constant the normal and tangential cutting deformation force will decrease with the increase of the grinding wheel linear velocity V s .When comparing the ultrasonic assisted grinding and

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