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Indexed by:期刊论文

Date of Publication:2019-10-01

Journal:MEASUREMENT

Included Journals:SCIE、EI

Volume:145

Page Number:254-263

ISSN No.:0263-2241

Key Words:Nickel-based superalloy; Micro-milling; Vibration displacement; Measurement; Prediction

Abstract:The relative vibration between the micro-milling cutter and workpiece influences the processing quality and tool life. To solve the difficult problem of measurement of vibration displacement between cutting tool and workpiece during micro-milling process, we designed a laser displacement sensor holder, which realizes the adjustment on multi degrees of freedom. A set of vibration displacement measurement system is developed, which utilizes laser displacement sensor to collect vibration signal during micro-milling process. The frequency of micro-milling force is obtained by using varying cutting parameters method. The relationship between cutting force amplitude, frequency and vibration displacement is ascertained by using neural network method to realize vibration displacement prediction under given cutting parameters. The research lays the foundation for vibration suppression of micro-milling, which can help improve surface quality and extend tool life. (C) 2019 Elsevier Ltd. All rights reserved.