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Indexed by:期刊论文

Date of Publication:2006-02-01

Journal:JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME

Included Journals:SCIE、EI

Volume:128

Issue:1

Page Number:175-179

ISSN No.:1087-1357

Abstract:Temperature plays a vital role in the machining industry today. With increasing cutting speeds being used in. machining operations, the thermal aspects of cutting have become more important. A nickel-chrome versus nickel-silicon thin-film thermocouple system has been established for measuring instantaneous workpiece temperature in chemical explosive material machining. The thin-film thermocouples have been directly deposited inside high-speed steel cutters by means of multiple arc ion plating and the thickness of the thermocouple junction is only a few micrometers. The research effort has been concentrated on developing solutions to the insulating problem between the thin-film thermocouples and the high-speed steel cutters. SiO2 insulating films have been deposited on the high-speed steel substrates by microwave electron cyclotron resonance plasma source enhanced radiofrequency (rf) reactive magnetron sputtering. Static and dynamic calibrations of the NiCr/NiSi thin-film thermocouples are presented The results of the testing indicate that the thin-film thermocouples have good linearity, little response time, and perform excellently when machining in situ.