Deep Hole Machining Method for NC Adjustable Diameter Ultrasonic Elliptical Vibration Boring

doi:10.3969/j.issn.1000-1093.2013.08.016

Abstract

Abstract:

Ultrasonic elliptical vibration deep-hole boring method is successfully applied to precision cutting due to its superior performances, such as low cutting force, chatter suppression and high machining precision. The acoustic interface transfer theory is analyzed in order to give full play to the ultrasonic elliptical vibration cutting and NC machining advantages. For the machining problem of complex inner hole with diameter-length ratio of greater than 20, a new processing method of NC adjustable diameter double-edge ultrasonic elliptical vibration boring is put forward. The cutting contrast experiment proves that the ultrasonic vibration double-edge adjustable tool boring method has the advantages of high machining precision, high surface quality and chatter suppression compared with the traditional boring method. In the case of the same machining parameters, the diameter of machined deep hole is 16 mm, the diameter-length ratio is 23: 1, the inner hole is 17 mm, and the ultrasonic boring surface roughness Ra is 0. 65 μm.The machining precision meets the design requirements, so the NC adjustable diameter ultrasonic elliptical tool boring is an effective method for deep hole machining.

Key words: machinofature technique and equipment, contact interface, ultrasonic vibration cutting, adjustable diameter boring, machining accuracy, surface quality

CLC Number:

TG663

LI Wen, WANG Xiao-mei, XU Ming-gang, ZHANG De-yuan, CHEN Hua-wei. Deep Hole Machining Method for NC Adjustable Diameter Ultrasonic Elliptical Vibration Boring[J]. Acta Armamentarii, 2013, 34(8): 1021-1027.

References

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