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论文类型：期刊论文

发表时间：2013-10-01

发表刊物：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：69

期号：1-4

页面范围：329-335

ISSN号：0268-3768

关键字：Diamond tools; Tungsten-based alloy; Ultrasonic vibration; Gas-liquid atomization; Tool wear

摘要：Natural diamond tool is quickly worn out while cutting a workpiece made of a tungsten-based alloy. This paper presents a new approach to reduce tool wear: ultrasonic vibration cutting of a workpiece made of a tungsten-based alloy based on gas-liquid atomization cooling. An atomizer is a device which mixes carbon dioxide gas with vegetable oil and changes the liquid into minute droplets, which are carried by a stream of gas. Atomizer is also a device that incorporates a venture device to translate liquid into a gas stream. The atomized minute droplets act as the cooling and lubricating medium to protect the tools. The system is designed to ensure that droplets can spread all over the surface of a work piece. At a constant spindle speed, feed rate, and cutting depth, the experiments were carried out for investigating the effects of the tool vibration parameters, carbon tetrachloride liquid flow rate, carbon dioxide gas flow, and gas-liquid mass ratio on the tool wear. The experiments showed that the technology of ultrasonic vibration with gas-liquid atomization cooling effectively prolongs the tool life in cutting tungsten-based alloy.