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Dynamic cutting force measuring

Dynamic cutting force measuring,10.1016/S0890-6955(99)00117-0,International Journal of Machine Tools & Manufacture,Najeh Tounsi,Alain Otho

Dynamic cutting force measuring   (Citations: 18)
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Piezoelectric dynamometer are generally used for force measuring. Delivered signals are distorted due to their self dynamic behaviour. Their dynamic characteristics are identified under normal machining operation. The proposed method is based on the interrupted cutting of a specially designed workpiece that provides a strong broadband excitation. The three components of the exciting force and the acceleration of the gravity centre of the dynamometer cover plate are measured simultaneously. Although the input acceleration components are correlated in the frequency bandwidth of interest, a method is presented to determine the nine terms of the dynamometer transfer matrix from only one cutting experiment. Series of different pulse excitations are carried out to validate the proposed method. Then, the determined transfer matrix is used for dynamic cutting force compensation under some milling operations.
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    • ...When measuring dynamic force in this process, the dynamometer is under forced and free vibration; it delivers signal distortion due to its self-dynamic behavior [12]...

    Z. Q. Yinet al. Wear characteristics of diamond tool in ultraprecision raster milling

    • ...With the additional mass of the workpiece, the lowered natural frequency of the dynamometer setup could distort the cutting dynamics [1, 2]. Tounsi and Otho [3] proposed an accelerometer-based method to compensate for the responses of the dynamometer at high frequencies...

    Il-Hae Kim. Dynamic cutting force on-line estimation using a 4-electrode cylindric...

    • ...Design of a dynamometer with desired transfer function requires perfect tuning of two opposite concepts: maximum rigidity to maintain the dynamics of the overall system along with maximum elasticity for maximum accuracy (Minis et al. 1990; Tlusty et al. 1987; Lapujoulade 1997; Tounsi and Otho 2000a,b)...

    I. N. Tanselet al. Basic computational tools and mechanical hardware for torque-based dia...

    • ...For operation outside this range, it is necessary to multiply the sensor signal (transformed to the frequency domain) by the inverted dynamometer frequency response function (FRF) to remove the influence of the dynamometer dynamics from the recorded signal [4]...

    David Burtonet al. High Frequency, Low Force Dynamometer for Micro-Milling Force Measurem...

    • ...Böylece, hesaplamalarda kullanılan ampirik eşitliklerin doğruluk derecesi de yapılan deneylerle teyit edilebilmektedir [4,5]...
    • ...Strain gage modüllerinin kullanımında, strain gageler direk olarak kesici takım tutucunun üzerine yapıştırılmış veya takım tutucunun bağlandığı bir bağlama elemanın üzerine yapıştırılarak sinyaller alınmıştır [18-30]...
    • ...Bu dönüştürücülerden alınan sinyaller, amplifikatör, veri dönüştürme sistemi, ve bilgisayar programı ile kaydedilmektedir (Şekil 5) [35-42]...

    Yakup TURGUT. CUTTING FORCE MEASUREMENT SYSTEMS IN MACHINING

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