Study on a New Type of Cutting Temperature Sensing Smart Tool

doi:10.3901/JME.2023.01.242

Abstract

Abstract: Orienting to the requirements of on-line accurate perception of cutting temperature for cutting state monitoring and intelligent optimization of machining process, a new type of temperature sensing smart tool is designed and prepared by microwave sintering, taking advantage of resistance-temperature characteristics of negative temperature coefficient thermal sensitive ceramics and well wear resistance of structural ceramics. Finally, the temperature field in the cutting zone is reconstructed. The temperature sensing smart tool has quick response and highest sensing temperature is over 700℃. The tool reaches thermal equilibrium at the time of 25 s, and the temperatures of the three temperature sensing points on the tool are 425℃, 204℃ and 188℃, when dry turning the nickel-base superalloy GH4169 under the conditions of v_c=150 m/min, a_p =1.0 mm, f =0.075 mm/r. The highest temperature of the tool occurs at the rake face near the main cutting edge, with the highest temperature of 1 579℃ and the temperature of the entire tool tip region is not less than 1 000℃.

Key words: smart tool, cutting temperature measurement, microwave sintering, temperature filed reconstruction

CLC Number:

TG501

YIN Zengbin, HAO Xiaohua, CHEN Weiyou, ZHENG Yitong. Study on a New Type of Cutting Temperature Sensing Smart Tool[J]. Journal of Mechanical Engineering, 2023, 59(1): 242-248.

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