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Automatic in-process control of laser metal-wire deposition based on sensor feedback
University West, Department of Engineering Science, Division of Electrical and Automation Engineering. (PTW)
University West, Department of Engineering Science, Division of Electrical and Automation Engineering. (PTW)ORCID iD: 0000-0001-5608-8636
2011 (English)In: 30th Interantional Congress on Applications of Lasers & Electro-Optics, ICALEO 2011: Orlando October 23-27, 2011. Code 87581|, 2011, p. 211-220Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes alasermetaldepositionsystem that isbasedon robotizedlaserwelding andwirefiller material. The system has been found suitable for the manufacture of simple but large shapes with high metallurgical requirements such as bosses or flanges found on aero engine components. Several benefits have been identified with the usage ofwirefiller compared to powderized feedstock, such as betterprocessefficiency, higherdepositionrates, and cleaner working environment. Thewirebaseddepositionprocessis however sensitive to disturbances and thus requires continuous monitoring and adjustments.Inthis work a 3D scanning system is described forautomaticin-processcontrolof thedeposition. The goal is to obtain a flat surface for each deposited layerinorder to ensure stabledeposition. The deviationsinthe layer height are compensated by controlling thewirefeed rate. The system is tested throughdepositionof small cylindrical bosses and the results show that the proposedcontrolapproach is suitable forautomaticdepositionof such structures. The material consideredinthis paper is Ti-6Al-4V deposited on plates of same material. The paper presents the equipment and thecontrolstrategy and discusses practical issues regarding thesensorused.

Place, publisher, year, edition, pages
2011. p. 211-220
National Category
Robotics Control Engineering
Identifiers
URN: urn:nbn:se:hv:diva-3714OAI: oai:DiVA.org:hv-3714DiVA, id: diva2:444041
Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2016-02-08Bibliographically approved

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Christiansson, Anna-Karin

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