Non-Destructive Surface Diagnostics of Tools

Article Preview

Abstract:

The aim of the study was to validate non-destructive diagnostics of surface of tools and metal sheets after steel grit blasting. We used replicas produced by fy Struers, known under commercial name RepliSet-F5. The replicas were extracted from surfaces of thirty specimens with PVD coatings (CrN, TiCN) and from flat specimens after steel grit blasting. Qualitative and quantitative parameters characteristic of surface morphology were determined by means of an optical profilometer, and confocal microscope was used for surface contactless metrology measurements. We observed a qualitative coincidence of morphological images of original surfaces and replicas. The values of the quantitative parameter Sa (Arithmetic mean height according to ISO 25178) of surfaces and replicas extracted from them differed at the second decimal place. Replicas document well the surface morphology and allow one to obtain information about the state of surface in difficult-to-access sites of the tools or constructions.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

41-44

Citation:

Online since:

May 2015

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] H.N. Hansen, R.J. Hocken, G. Tosello, Replication of micro and nano surface geometries, CIRP Annals –Manufacturing Technology 60 (2011) 695–714.

DOI: 10.1016/j.cirp.2011.05.008

Google Scholar

[2] J.A. Newman, S.A. Willard, S. W Smith, R.S. Piascik, Replica-based crack inspection, Eng. Fract. Mech. 76 (2009) 898–910.

DOI: 10.1016/j.engfracmech.2008.12.012

Google Scholar

[3] Y.C. Liu, C.Y. Ling, A.A. Malcolm, Z.G. Dong, Accuracy of replication for non-destructive surface finish measurement, SINCE2011, Singapore International NDT Conference & Exhibition, (2011).

Google Scholar

[4] J.B. Jordon, J.D. Bernard, J.C. Newman Jr., Quantifying microstructurally small fatigue crack growth in an aluminum alloy using a silicon-rubber replica method, Int. J. Fatigue 36 (2012) 206–210.

DOI: 10.1016/j.ijfatigue.2011.07.016

Google Scholar

[5] Information on http: /www. struers. com/resources/elements/12/189606/Repliset%20brochure %20English. pdf.

Google Scholar

[6] STN EN ISO 25 178-2: 2012, Geometrical product specifications (GPS) – Surface texture: Areal – Part 2: Terms, definitions and surface texture parameters, SÚTN, (2012).

DOI: 10.3403/30154352u

Google Scholar