Using Barkhausen noise to measure coating depth of coated high-speed steel
- 425 Downloads
Coated high-speed steel tools are widely used in machining processes as they offer an excellent tool life to cost ratio, but they quickly need replacing once the coated layer is worn away. It would be therefore useful to be able to measure the tool life remaining non-destructively and cheaply. To achieve this, the work presented here aims to measure the thickness of the coated layer of high-speed cutting tools by using Barkhausen noise (BHN) techniques. Coated high-speed steel specimens coated with two different materials (chromium nitride (CrN), titanium nitride (TiN)) were tested using a cost-effective measuring system developed for this study. Sensory features were extracted from the signal received from a pick-up coil and the signal features, Root mean square, peak count, and signal energy, were successfully correlated with the thickness of the coating layer on high-speed steel (HSS) specimens. The results suggest that the Barkhausen noise measuring system developed in this study can successfully indicate the different thickness of the coating layer on CrN/TiN coated HSS specimens.
KeywordsBarkhausen noise Coating High-speed steel
- 1.Bobzin K High-performance coatings for cutting tools. CIRP Journal of Manufacturing Science and Technology. doi: 10.1016/j.cirpj.2016.11.004
- 2.Fernández-Valdivielso A, López de Lacalle LN, Urbikain G, Rodriguez A (2015) Detecting the key geometrical features and grades of carbide inserts for the turning of nickel-based alloys concerning surface integrity. Proc Inst Mech Eng C J Mech Eng Sci 230(20):3725–3742. doi: 10.1177/0954406215616145 CrossRefGoogle Scholar
- 25.Santa-aho S, Hakanen M, Sorsa A, Vippola M, Leiviska K, Lepisto T (2014) Case depth verification of hardened samples with Barkhausen noise sweeps. In: Chimenti DE, Bond LJ, Thompson DO (eds) 40th annual review of progress in quantitative nondestructive evaluation: incorporating the 10th international conference on Barkhausen noise and micromagnetic testing, Vols 33a & 33b, AIP Conference Proceedings, vol 1581. Amer Inst Physics, Melville, pp 1307–1314. doi: 10.1063/1.4864972 Google Scholar
- 26.Bach G, Goebbels K, Theiner WA (1988) Characterization of hardening depth by barkhausen noise measurement. Mater Eval 46(12):1576–1580Google Scholar
- 27.Moorthy V, Shaw BA, Brimble K (2004) Testing of case depth in case carburized gear steels using magnetic barkhausen emission technique. Mater Eval 62(5):523–527Google Scholar
- 30.Blaow MM, Shaw BA (2015) Effect of excitation field strength on magnetic Barkhausen noise profile in case carburized EN 36 Steel. In: Oral AY, Bahsi ZB, Ozer M, Sezer M, Akoz ME (eds) 4th International Congress in Advances in Applied Physics and Materials Science, vol 1653. AIP Conference Proceedings. Amer Inst Physics, Melville. doi: 10.1063/1.4914212
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.