Title: Temperature measurement using single-pole grindable thermocouple during grinding Ti-6Al-4V

Authors: Yujun Wu; Atsushi Iwasaki; Hisanobu Kawashima; Weimin Lin

Addresses: Graduate School of Science and Technology, Gunma University, 1-5-1 Tenshin-machi, Kiryuu, 376-8515, Japan ' Division of Mechanical Science and Technology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenshin-machi, Kiryuu, 376-8515, Japan ' Division of Mechanical Science and Technology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenshin-machi, Kiryuu, 376-8515, Japan ' Division of Mechanical Science and Technology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenshin-machi, Kiryuu, 376-8515, Japan

Abstract: To directly detect the surface temperature in the grinding area, a single-pole grindable thermocouple for heat-resistant alloys was constructed and calibrated. The stability of various material fixing wires is compared, and a layered fixing method is used to ensure the formation of contact junctions. The effect of wire wiring on the temperature signal is investigated, and fork connections are identified as the standard connection method. It is different when comparing the grinding temperatures of Ti-6Al-4V and SUS430. Unlike before, the surface temperature of the specimen is used as the background temperature, and the pace of heating is defined to investigate how it affects the area zone temperature. Low thermal conductivity can hinder heat transfer to the interior and can be up to 12% higher at a grinding depth of 3 μm. This provides a theoretical foundation for proposing grinding strategies for effectively slashing grinding temperatures.

Keywords: Ti-6Al-4V; single-pole grindable thermocouple; cutting temperature; grinding parameter; background temperature.

DOI: 10.1504/IJAT.2022.125281

International Journal of Abrasive Technology, 2022 Vol.11 No.1, pp.49 - 69

Received: 11 Apr 2022
Accepted: 04 Jul 2022
Published online: 05 Sep 2022 *

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