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Effect of mechanical vibration on Ra, Rq, Rz, and Rt roughness parameters

Effect of mechanical vibration on Ra, Rq, Rz, and Rt roughness parameters The effect of mechanical vibration on the roughness parameters (Ra, Rq, Rz and Rt) obtained by an electromechanical surface roughness tester in two samples, a stainless steel with Ra equal to 0.369 μm and a carbon steel with Ra of 5.342 μm, is discussed in this article. The tests were performed by introducing vibration with different values of frequency and amplitude. The measurement uncertainty associated with all roughness parameters was estimated by applying the GUM method proposed in the JCGM 101. The analysis of variance (ANOVA) technique was applied, and it was observed that the variables frequency and acceleration plus interaction between them were statistically significant with a 95% confidence level for all parameters evaluated. In the stainless steel sample, frequency produced the greatest effects on the values of roughness parameters, except for Ra value, which was more influenced by the acceleration. It was also found that the effect of the interaction between frequency and acceleration produced significant effects on the values of Rq and Rz. In the carbon steel sample, the interaction between frequency and acceleration was the main generator of changes in the average values of all parameters evaluated. For Ra, Rq, and Rz, the frequency was also a statistically significant variable. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

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References (19)

Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
DOI
10.1007/s00170-017-0137-0
Publisher site
See Article on Publisher Site

Abstract

The effect of mechanical vibration on the roughness parameters (Ra, Rq, Rz and Rt) obtained by an electromechanical surface roughness tester in two samples, a stainless steel with Ra equal to 0.369 μm and a carbon steel with Ra of 5.342 μm, is discussed in this article. The tests were performed by introducing vibration with different values of frequency and amplitude. The measurement uncertainty associated with all roughness parameters was estimated by applying the GUM method proposed in the JCGM 101. The analysis of variance (ANOVA) technique was applied, and it was observed that the variables frequency and acceleration plus interaction between them were statistically significant with a 95% confidence level for all parameters evaluated. In the stainless steel sample, frequency produced the greatest effects on the values of roughness parameters, except for Ra value, which was more influenced by the acceleration. It was also found that the effect of the interaction between frequency and acceleration produced significant effects on the values of Rq and Rz. In the carbon steel sample, the interaction between frequency and acceleration was the main generator of changes in the average values of all parameters evaluated. For Ra, Rq, and Rz, the frequency was also a statistically significant variable.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Feb 24, 2017

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