Influence of the Velocity and the Number of Polishing Passages on the Roughness of Electrolytic Plasma Polished Pipe Inner Surfaces
Abstract
:1. Introduction
2. Materials and Methods
2.1. Sample Material and Preparation
2.2. Parameters of Electrolytic Plasma Polishing/Experimental Procedure
2.3. Measurement Methods to Characterize the Surface Roughness
3. Results and Discussion
4. Conclusions
- (i)
- the crucial factor for the achievable average surface roughness is the effective polishing time ;
- (ii)
- the minimal average surface roughness ranges are achieved after a effective polishing time of approximately 25 s for both the inner pipe surface and the weld seam;
- (iii)
- the average surface roughness of the pipe inner surface can reach a range from 0.030 µm to 0.034 µm starting from an initial surface roughness of 0.719 µm;
- (iv)
- the average surface roughness of the weld seam can reach a range from 0.088 µm to 0.096 µm starting from an initial surface roughness of 0.282 µm.
Author Contributions
Acknowledgments
Conflicts of Interest
References
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v/(mm s−1) | tept/s | 3.33 | 6.67 | 10.00 | 13.33 | 16.67 | 20.00 | 26.67 | 33.33 | 40.00 | 46.67 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
µm | 0.302 | 0.174 | 0.119 | 0.055 | 0.037 | 0.038 | 0.034 | 0.032 | 0.034 | 0.038 | 0.753 | |
0.3 | µm | 0.166 | 0.147 | 0.109 | 0.027 | 0.010 | 0.010 | 0.008 | 0.007 | 0.011 | 0.007 | 0.035 |
n | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | − | |
µm | 0.314 | 0.078 | 0.042 | 0.032 | 0.035 | 0.035 | 0.027 | 0.027 | 0.029 | 0.030 | 0.725 | |
0.6 | µm | 0.108 | 0.021 | 0.008 | 0.004 | 0.008 | 0.007 | 0.002 | 0.001 | 0.003 | 0.002 | 0.045 |
n | 2 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 28 | − | |
µm | 0.389 | 0.151 | 0.078 | 0.048 | 0.038 | 0.033 | 0.029 | 0.027 | 0.031 | 0.027 | 0.651 | |
1.2 | µm | 0.018 | 0.067 | 0.060 | 0.032 | 0.016 | 0.009 | 0.004 | 0.004 | 0.005 | 0.001 | 0.074 |
n | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | − | |
µm | 0.348 | 0.134 | 0.070 | 0.055 | 0.061 | 0.057 | 0.031 | 0.035 | 0.037 | 0.040 | 0.705 | |
2.4 | µm | 0.112 | 0.044 | 0.023 | 0.018 | 0.040 | 0.035 | 0.008 | 0.011 | 0.010 | 0.006 | 0.076 |
n | 8 | 16 | 24 | 32 | 40 | 48 | 64 | 80 | 96 | 112 | − | |
µm | 0.356 | 0.142 | 0.080 | 0.050 | 0.040 | 0.036 | 0.029 | 0.030 | 0.030 | 0.034 | 0.764 | |
4.8 | µm | 0.115 | 0.078 | 0.049 | 0.014 | 0.010 | 0.010 | 0.004 | 0.005 | 0.004 | 0.004 | 0.076 |
n | 16 | 32 | 48 | 64 | 80 | 96 | 128 | 160 | 192 | 224 | − | |
µm | 0.342 | 0.136 | 0.078 | 0.048 | 0.042 | 0.040 | 0.030 | 0.030 | 0.032 | 0.034 | 0.719 | |
µm | 0.116 | 0.087 | 0.064 | 0.023 | 0.022 | 0.019 | 0.006 | 0.007 | 0.008 | 0.007 | 0.075 |
v/(mm s−1) | tept/s | 3.33 | 6.67 | 10.00 | 13.33 | 16.67 | 20.00 | 26.67 | 33.33 | 40.00 | 46.67 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
µm | ||||||||||||
0.3 | µm | |||||||||||
n | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | − | |
µm | ||||||||||||
0.6 | µm | |||||||||||
n | 2 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 28 | − | |
µm | ||||||||||||
1.2 | µm | |||||||||||
n | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | − | |
µm | ||||||||||||
2.4 | µm | |||||||||||
n | 8 | 16 | 24 | 32 | 40 | 48 | 64 | 80 | 96 | 112 | − | |
µm | ||||||||||||
4.8 | µm | |||||||||||
n | 16 | 32 | 48 | 64 | 80 | 96 | 128 | 160 | 192 | 224 | − | |
µm | ||||||||||||
µm |
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Cornelsen, M.; Deutsch, C.; Seitz, H. Influence of the Velocity and the Number of Polishing Passages on the Roughness of Electrolytic Plasma Polished Pipe Inner Surfaces. Metals 2018, 8, 330. https://doi.org/10.3390/met8050330
Cornelsen M, Deutsch C, Seitz H. Influence of the Velocity and the Number of Polishing Passages on the Roughness of Electrolytic Plasma Polished Pipe Inner Surfaces. Metals. 2018; 8(5):330. https://doi.org/10.3390/met8050330
Chicago/Turabian StyleCornelsen, Matthias, Carolin Deutsch, and Hermann Seitz. 2018. "Influence of the Velocity and the Number of Polishing Passages on the Roughness of Electrolytic Plasma Polished Pipe Inner Surfaces" Metals 8, no. 5: 330. https://doi.org/10.3390/met8050330