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Heat affected zones and oxidation marks in fiber laser–oxygen cutting of mild steel
Salalah College of Technology, Engineering Department, Salalah, Oman and Faculty of Engineering, University of Nottingham.
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0002-3569-6795
Faculty of Engineering, University of Nottingham.
2011 (English)In: Journal of laser applications, ISSN 1042-346X, E-ISSN 1938-1387, Vol. 23, no 4Article in journal (Refereed) Published
Abstract [en]

The effect of cutting speed and sheet thickness on surface oxidation and heat affected zones (HAZs) has been investigated for laser–oxygen cutting of mild steel sheet with a fiber laser. Optical and scanning electron micrographs were used to determine the extent of surface oxidation and HAZ from plan and cross-sectional views, respectively. The HAZ is consistently wider at the bottom of the cut compared to the HAZ at the top of the cut. With increasing speed, the width of the HAZ at the top of the cut decreases whereas the HAZ width at the bottom of the cut generally increases. No simple, direct relationship between HAZ width and surface oxidation was seen. However, it is possible to state that in each case considered here, the HAZ would be completely removed if they are machined back by a depth equal to the extent of the surface oxidation.

Place, publisher, year, edition, pages
2011. Vol. 23, no 4
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-5363DOI: 10.2351/1.3614404ISI: 000305828300003Scopus ID: 2-s2.0-81155138362Local ID: 3739736c-79ad-41cc-9cbb-c7855a8e4a35OAI: oai:DiVA.org:ltu-5363DiVA, id: diva2:978237
Note
Validerad; 2011; Bibliografisk uppgift: Article Number: 042003 ; 20111116 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Powell, JohnKaplan, Alexander

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