Investigation of the process of smoothing with ultrasound
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 3, Issue 1
Abstract
<p>We studied and simulated the ultrasonic smoothing process. We carried out the analysis of the contact interaction of a tool with a part in the process of ultrasonic smoothing with a preceding gap. The analysis provides an opportunity to calculate a change in a size of a part during the treatment depending on modes. We derived the dependences of a contact area at the ultrasonic smoothness with a preceding gap. We performed the experimental study of an influence of parameters of the process of ultrasonic smoothing on parameters of a quality of a surface layer of a part. We established that in order to ensure the required roughness and accuracy, the depth of introduction should not exceed 7 μm, especially when treated parts are made of materials with a low modulus of elasticity.</p><p>We developed an installation for experiments based on the high precision automatic screw machine 16B05АF10. All additional devices and tools were attached to the tool holder of a given machine.</p><p>We developed a technique to measure the time of contact between a tool and an article under ultrasonic smoothing with a preceding gap.</p><p>We established that deformation of micro roughnesses occurs due to a pressure of projections of micro roughnesses to cavities since we excluded shift deformation by using a solid lubricant. The fact that there was no texture on the microsection of the treated surface, although we could observe hardening of a surface, indicates that there is no shift deformation. Based on this conclusion, it is possible to disregard a non-contact wave of deformation.</p><p>We obtained analytical dependences of contact area under ultrasonic smoothness with a preceding gap on treatment parameters, namely, the treatment speed, the feed rate, the radius of an operation surface of a tool. The results of mathematical modeling and experimental data are quite close. We defined the region of optimal feed, which makes it possible to obtain surfaces with minimal roughness or microrelief.</p>
Authors and Affiliations
Valery Тurych, Volodymyr Rutkevych, Natalia Goncharuk, Galina Ogorodnichuk
Keywords
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- EP ID EP527951
- DOI 10.15587/1729-4061.2018.131047
- Views 59
- Downloads 0
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