Dependence of surface roughness on technological conditions of ultrasonic smoothing

DOI

10.2991/aime-18.2018.60How to use a DOI?

Keywords

ultrasonic smoothing, ultrasonic power output, indenter, plastic zone, surface roughness, processing modes

Abstract

Fatigue, corroding and tribological properties of machine parts are mostly determined by surface quality formed during finishing operations. One of the most effective ways to form the required surface is by ultrasonic smoothing. The article presents experimental results of ultrasonic surface smoothing for workpieces of two types of steels 17Х18N9Т and 20Х1М1F1ТR. The experiments were conducted on the turning lathe with the experimental ultrasonic technological complex. The variables were workpiece rotational speed, feeding speed, clamping force and ultrasonic power treatment. D-optimal plan of Hartley-Kono was used during the experiment. Dispersion-regressive analysis of the experimental data revealed the relation between the surface roughness and processing regime modes. Feeding lowering decreases the surface roughness for both steels. To decrease the surface roughness of 20Х1М1F1ТR steel it is necessary to increase power of ultrasonic treatment simultaneously with clamping force decrease. For steel 17Х18N9Т clamping force results in surface roughness lowering that is why ultrasonic power is not significant. Partial correlation coefficient analysis revealed that micro profile height for steel 20Х1М1F1ТR is determined by feeding speed. For austenitic steel 17Х18N9Т feeding speed and clamping force are equally important factors. During the experiments the surface roughness decreased from 1.5 mkm to 0,1-0,2 mkm with ultrasonic treatment, that is more than 10 times.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - V.I. Malygin
AU  - L.V. Kremleva
AU  - N.S. Oblovatskaya
AU  - N.V. Lobanov
PY  - 2018/04
DA  - 2018/04
TI  - Dependence of surface roughness on technological conditions of ultrasonic smoothing
BT  - Proceedings of the International Conference "Actual Issues of Mechanical Engineering" (AIME 2018)
PB  - Atlantis Press
SP  - 309
EP  - 313
SN  - 2352-5401
UR  - https://doi.org/10.2991/aime-18.2018.60
DO  - 10.2991/aime-18.2018.60
ID  - Malygin2018/04
ER  -