A New Micro-Cutting Device with High Stiffness and Resolution

Development and application of an ultra-precision lathe

“…The piezoelectric material is pre-loaded by a ball and screw. In this work, the dimensions of the elastic hinge were determined by the principle of a parallel spring from the following equation [6]:…”

Design, development and testing of a four-component milling dynamometer for the measurement of cutting force and torque

“…Ito et al [7] designed some strain gauge-based dynamometers that can be adapted to some machine tools and defined the criterions of their rigidity and sensitivity. In designing the dynamometer, some principles such as parallel beam type [1,8], circular hole [9][10][11], piezo-electric [12,13], etc., have been used widely.…”

A fine tool servo system for global position error compensation for a miniature ultra-precision lathe

“…Patterson and Magrab [1] designed a fast tool servo for diamond turning with 2.5 mm stroke and 660 Hz bandwidth. Hara et al [2] developed a micro-cutting device with piezoelectric actuator and parallel spring guidance which was able to achieve stiffness of 80 N/mm and stroke of 3.7 mm. Woronko et al [3] developed a piezo-based fast tool servo with a 38 mm stroke and 3200 Hz natural frequency.…”

“…The measurement is taken by measuring the deflection of the tool against the workpiece during turning. Most of the developed FTS have used the high resolution capacitance gap sensor to measure the submicrometer displacement which is created by the diamond tool tip during machining [1][2][3][4]. This type of position-measurement technique is very suitable for machining the fine features of free-form surface on the workpiece during turning.…”