期刊
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
卷 100, 期 9-12, 页码 2349-2355出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00170-018-2815-y
关键词
Contact resistance; Tool wear; Contact area; End-mill cutter
A method is proposed to diagnose wear and to determine the replacement schedule for a working end-mill cutter. Changes in the contact area between a working end-mill cutter and the workpiece during a milling process lead to a real-time variation in the contact resistance. Measuring the real-time contact resistance using a micro-ohm meter and a GPIB (general-purpose interface bus) interface control card allows the wear in a working end-mill cutter to be determined. Real-time contact resistance values for a working end-mill cutter are measured and recorded every second. The experimental results demonstrate that when the milling cutter operates continuously for about 20,000s, the contact resistance decreases to about 25% of the original value for the brand new state. This method can be used for the future design of milling machines. If the value of the contact resistance for a working end-mill of the same type approaches this value, the cutter should be replaced in order to maintain efficient machining.
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