Development of NiCr∕NiSi Thin-Film Thermocouple Sensor for Workpiece Temperature Measurement in Chemical Explosive Material Machining
| Autor: | Ying Jia, Jing Xu, Qiyong Zeng, Jun Xu, Baoyuan Sun, Xinlu Deng |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Explosive material business.industry Mechanical Engineering Ion plating Electrical engineering Temperature measurement Industrial and Manufacturing Engineering Computer Science Applications Machining Control and Systems Engineering Sputtering Thermocouple Nichrome Composite material Thin film business |
| Zdroj: | Journal of Manufacturing Science and Engineering. 128:175-179 |
| ISSN: | 1528-8935 1087-1357 |
| DOI: | 10.1115/1.2117467 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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