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Experimental investigation of laser interaction with Haynes 282 superalloy
University West, Department of Engineering Science.
2022 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Laser powder bed fusion is an additive manufacturing process. It is gaining importance in the past few years because of its capability to combine fine features and high quality for required components. The process is done using the laser as the heat source to melt the powder and form the desired component. The interaction of the different powders and the laser is not the same, hence study of the process parameter is done. Hayness 282 a nickel-based superalloy is used for the processability it offers. In this study, interaction of laser with Haynes 282 plates is analyzed. The process parameters, laser and atmospheric conditions are kept similar to the laser powder bed fusion process on powder. Laser power, scanning speed and hatching distance effects are studied to determine the melt pool behavior. The differentiation of the obtained melt pool is done based upon the melt pool shape and dimensions as conduction, transition and keyhole modes. Hatching distance affects the depth of penetration of the melt pools. Overlap aids in covering the undercuts obtained when hatching distance is small. 

Place, publisher, year, edition, pages
2022. , p. 34
Keywords [en]
Laser powder bed fusion, Haynes 282, process parameters, melt pool modes
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:hv:diva-18566Local ID: EXM903OAI: oai:DiVA.org:hv-18566DiVA, id: diva2:1672709
Subject / course
Mechanical engineering
Educational program
Maskiningenjör
Supervisors
Examiners
Available from: 2022-06-22 Created: 2022-06-20 Last updated: 2025-09-30Bibliographically approved

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