Publication: Publication Date: 1 June 2011Testing Method:
Roughness Measurement Parameters by the Eddy Current Technique
Roughness parameters are important characteristics in the manufacturing and friction of materials. Variations in the roughness parameters during motion can be used to estimate the longevity of rubbed surfaces. In the Theoretical Background section of this paper, the feasibility of using the eddy current technique for measuring the roughness parameters of nonferrous and ferrous metals, and specifically steel surfaces, is demonstrated. Eddy current tests were performed using a commercial manual flaw detector with pencil probes. In the Experimental Procedure sections, the roughness parameters of ferrous and nonferrous metals were evaluated in static conditions using eddy current technique measurements. Eddy current technique data were compared with the values of the roughness parameters measured by a profilograph. Good correlation was obtained between the eddy current technique and profilograph measurements. Finally, the roughness parameters were evaluated under dynamic conditions during friction tests. The results confirmed the applicability of the eddy current technique for measuring the roughness parameters both under static and dynamic conditions. The new methodology and a probe holder design for estimation of roughness parameters in static and dynamic conditions were developed. This methodology excludes the noise factors in the roughness measurement parameters.
References
Avner, S. H., Introduction to Physical Metallurgy, McGraw Hill, Tokyo,
Japan, 1974, p. 371.
Beda, P., B. Vibornov, Y. Glaskov, S. Luzko, G. Samoilovich and G. Shelichov,
Non-destructive Inspection of Metals and Production Handbook,
Machine Building Publishers, Moscow, Russia, 1976, p. 465.
Bilik, Y. Z. and A. L. Dorofeev. “Proba-type Electromagnetic Inspection
Instruments,” Nondestructive Testing, Vol. 17, No. 6, Plenum Publishing
Corporation, 1982, pp. 447–451.
Bilik, Y., E. Keydar and V. Boroda, “New Eddy Current Technique for
Printed Circuit Board Control,” Materials Evaluation, Vol. 64, No. 8, 2006,
pp. 775–777.
Bilik, Y. and I. Roitburd, “The Signal Forming of Discontinuities on Application
of the Modulation Eddy Current Flaw Detection,” In Coll. Electromagnetic
Methods of Inspection, MDNTP, Moscow, Russia, 1969,
pp. 98–101.
Blodgett, M. P., C. V. Ukpabi and P. B. Nagy, “Surface Roughness Influence
on Eddy Current Electrical Conductivity Measurements,” Materials
Evaluation, Vol. 61, No. 6, 2003, pp. 765–772.
Devillez, A. and D. Dudzinski, “Tool Vibration Detection with Eddy
Current Sensors in Machining Process and Computation of Stability Lobes
Using Fuzzy Classifiers,” Mechanical Systems and Signal Processing, Vol. 21,
No. 1, 2007, pp. 441–456.
Förster F., ‘The Nondestructive Inspection of Tubings for Discontinuities
and Wall Thickness Using Electromagnetic Test Methods: Part I,” Materials
Evaluation, No. 4, 1970, pp. 21–25.
Klyuev, V., “Calculation of Eddy Current Probe for Moving Object Inspection,”
Measurements Technique, Moscow, Russia, Vol. 4, 1969, pp. 50–52.
Klyuev, V., Devices for NDT Materials and Products, Part 2, Machine
Building Publishers, Moscow, Russia, 1976, p. 326.
Libby, H., Introduction to Electromagnetic Nondestructive Test Methods,
Wiley Interscience, New York, New York, 1971, p.135.
Lu, C., “Study on Prediction of Surface Quality in Machining Process,”
Journal of Materials Processing Technology, Vol. 205, Nos. 1–3, 2008,
pp. 439–450.
Rapoport, L. and Y. Bilik, “Application of Eddy Current Method for
Estimation of Wear Loss,” Journal of Tribology, Vol. 120, No. 2, 1998,
pp. 406–408.
Rapoport, L., “Steady Friction State and Contact Models of Asperity Interaction,”
Wear, Vol. 267, Nos. 5–8, 2009, pp. 1305–1310.
Sandovski, V., “Calculation of Crack Impedance Reflected in the Eddy
Current Probe,” Defectoscopia, Vol. 1, 1976, pp. 95–102.
Welsh, N. C., “The Dry Wear of Steels: I. The General Pattern of
Behavior,” Philosophical Transactions of the Royal Society of London A, 257,
1965, pp. 31–49.
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