Cutting force measurement based on tool embedded Ni-chrome thin-film micro-sensors  

刀具嵌入镍铬合金薄膜微传感器切削力测量的研究(英文)

作　　者：武文革[1] 成云平[1] 杜晓军[1] 

机构地区：[1]中北大学机械与动力工程学院,山西太原030051

出　　处：《Journal of Measurement Science and Instrumentation》2014年第4期16-19,共4页测试科学与仪器（英文版）

基　　金：Research Project Supported by Shanxi Scholarship Council of China(No.2013-086)

摘　　要：Cutting force measurement has become a crucial activity for enhancing machining process performance. This paper described the design and fabrication of embedded Ni-chrome thin-film micro-sensors in tool holders to measure the cutting force in machining operations. A Ni-chrome thin-film sensor device is embedded within a substrate structure through a dy- namic brazing process, which consists of a Ti6A14V substrate, a nickel-chromium thin-film sensor and an alumina insulating layer. The Wheatstone bridge which consists of four sensors would produce the output voltage when the thin film caused de- formation by the cutting forces. The relationship between input and output voltages was theoretically analyzed. According- ly, an in-process cutting force measurement system is established. The results show that the thin-film sensor had good lineari- ty and less mutual interference, and it is suitable for all kinds of turning forces under the measurement conditions.

关 键 词：thin-film micro-sensor cutting force measurement theoretical analysis 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TG806[自动化与计算机技术—控制科学与工程]