【摘要】 对采用超声波振动钻削微小孔时钻头的寿命、出口毛刺和加工表面粗糙度等问题进行了研究。结果表明，超声波振动钻削明显优于普通钻削。更多还原

【Abstract】 Problems such as drill life exit burr and machined surface roughness etc. in ultrasonic vibration drilling of micro holes are investigated Results show that ultrasonic vibration drilling is evidently superior to conventional drilling.更多还原