Method for vibration drilling holes in composite materials tool modification of cubic boron nitride
Journal Title: Обработка металлов (технология • оборудование • инструменты) - Year 2017, Vol 19, Issue 1
Abstract
High performance of highly engineered product processing is reached by development and adoption of special technologies based on the application of modern instrumental support and progressive tooling. The paper shows the composite materials relevance in modern engineering and also considers the problems associated with holes drilling in these materials. It proposes the ways of the increase of process efficiency and quality improvement of the finished surface when drilling the composite materials by using of the modern tool materials coupled with the instrument axial vibration. The article defines the description of the holes’ vibrational cut in higher-melting-point materials using especial device and drill equipped with cutting elements made of cubic boron nitride. The advantages of the processing method and cutting tool with composite plates over traditional tools using in the enterprises are shown. The using the cubic boron nitride plates as a cutting part of drills allows to increase the processing performance more than 7 times due to intensification of cutting modes. The created design of device for drilling machines, allows to apply axial vibration on a drill in the range 20-500 Hz. The specifications of created device support the implementation of a wide range of tool feed required spindle speed, cutting speed and required amplitude high-frequency axial tool vibrations. The circuit of two stacked inductors is accepted for converting electrical into mechanical vibrations. A direct current is supplied to fixed top inductor, and alternating current is supplied low inductor, fixed coaxially with the upper inductor, and having axial movement. The using of this device allows providing the quality of finished surface and increasing durability of cutting tool with composite plates due to adhesive wear decrease.
Authors and Affiliations
Evgeniy Kudryashov, I. M. Smirnov, S. A. Chevychelov, E. I. Yatsun
Keywords
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- EP ID EP393031
- DOI 10.17212/1994-6309-2017-1-6-12
- Views 56
- Downloads 0
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