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切削力的测量旨在改进和提高切削加工性能。本文设计和制备了一种镍铬合金薄膜微传感器,将其焊接嵌入刀具的刀杆上以测量加工中的切削力。该传感器由Ti6Al4V钛合金基体、镍铬合金薄膜层及氧化铝绝缘层组成。切削力引起的薄膜变形使四个电阻栅组成的惠斯通电桥产生输出电压,对其输入和输出电压之间的关系进行了理论分析。构建了切削力测量系统。研究结果表明,该薄膜传感器具有良好的线性度和更小的相互干扰,适合于各种条件下车削力的测量。
Cutting force measurement is designed to improve and improve the machinability. In this paper, a nickel-chromium alloy thin film micro-sensor was designed and prepared, and its welding embedded in the tool’s arbor to measure the machining cutting force. The sensor consists of Ti6Al4V titanium alloy substrate, nickel-chromium alloy film layer and alumina insulation layer. The film deformation caused by the cutting force makes the Wheatstone bridge composed of four resistance grids generate the output voltage, and theoretically analyzes the relationship between the input and the output voltage. Build a cutting force measurement system. The results show that the thin film sensor has good linearity and smaller mutual interference, suitable for measuring the turning force under various conditions.