Burrless Drilling by Means of Ultrasonic Vibration

Summary In order to achieve edge integrity in view of burr, flaking, shipping, material deterioration, etc, in drilling operations, ultrasonic vibration has been applied in the direction of drill feed. The multiplying effects of ultrasonic vibration and newly developed radial peripheral Lip drill has been experimentally demonstrated to be extremely effective for preventing burr and material deterioration at the exit of drilled hole of aluminum and glass fibre referred plastics.