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A systematic approach to manufacturing parts with desired properties by selective laser melting
South Africa.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics. (Materialvetenskap)
South Africa.
2015 (English)In: Materials Science and Technology Conference and Exhibition 2015, MS and T 2015, Association for Iron and Steel Technology, AISTECH , 2015, Vol. 1, 121-128 p.Conference paper (Refereed)Text
Abstract [en]

Selective laser melting (SLM) is becoming a powerful additive manufacturing technology for different industries: automotive, medical, chemical, aerospace, etc. The extension of applications requires a wide spectrum of powder materials with specific properties. To produce parts with tailored properties by SLM, optimal process-parameters and scanning strategies have to be used for different powders. Numerical simulation allows the estimation of temperature distribution during laser melting and prediction the final microstructures and properties of SLM object. A hierarchical approach, including systematic analysis of SLM parameters necessary to control the final product quality on every level - track, layer, 3D object is suggested and discussed. A series of single tracks, layers and 3D objects were manufactured from metal powders to validate a proposed algorithm. The efficiency of the approach was illustrated by the manufacturing of fully dense samples from AISI 420 stainless steel.

Place, publisher, year, edition, pages
Association for Iron and Steel Technology, AISTECH , 2015. Vol. 1, 121-128 p.
Series
, Materials Science and Technology Conference and Exhibition 2015, MS and T 2015
Keyword [en]
Algorithms; Laser applications; Manufacture; Melting; Optimization; Powder metals; Powders; Quality control; Stainless steel, Additive manufacturing technology; Defect detection; Estimation of temperatures; Final microstructures; Hierarchical approach; Manufacturing strategy; Optimization algorithms; Selective laser melting, 3D printers
National Category
Materials Engineering
Research subject
Materials Engineering
Identifiers
URN: urn:nbn:se:kau:diva-42286ScopusID: 2-s2.0-84962544180ISBN: 978-151081393-9OAI: oai:DiVA.org:kau-42286DiVA: diva2:930281
Conference
Materials Science and Technology Conference and Exhibition 2015, MS and T 2015 Greater Columbus Convention CenterColumbus; United States; 4 October 2015 through 8 October 2015
Available from: 2016-05-23 Created: 2016-05-23 Last updated: 2016-08-12Bibliographically approved

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Krakhmalev, Pavel
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