The Use of Oscillating Tool Movements to Improve the Quality of the Machined Surface

Abstract

Processing brittle materials is one of the complex technological operations. Studies addressing this issue focus on finding a technological solution for the mechanical processing of difficult-to-process optical elements. One of the modern solutions is cutting using oscillating movements of the tool's cutting edge. This method allows improving the quality of the resulting surface of optical elements and increasing the thickness of the cut layer. A piezoelectric element or a magnetostrictive transducer is used as a source of oscillating movements. The article examines a microdrive that includes actuators made of piezoceramics. The choice of such a microactuator is determined by the actuator's energy efficiency, the fast response of the piezoelectric element, low heat generation, and high stiffness and accuracy. A microactuator scheme is proposed, its operation is described, an example of tool movement trajectories is provided, and the design is implemented and tested during the processing of samples. The resulting parts are inspected using high-precision measuring equipment. Based on the results of the experiment, the validity of the applied approach for processing optical elements at a semi-violent operation using oscillating movements is proven. The quality of the machined surface is improved due to a reduction in roughness compared to conventional cutting. Graphs showing the changes in parameters for all samples are provided

Please cite this article in English as:

Obraztsov A.E., Utenkov V.M., Kuznetsov P.M. The use of oscillating tool movements to improve the quality of the machined surface. Herald of the Bauman Moscow State Technical University, Series Mechanical Engineering, 2026, no. 3 (158), pp. 102--119 (in Russ.). EDN: KBXPCC

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