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Characterization of laser powder bed fusion process for alloy Haynes 282
University West, Department of Engineering Science.
2022 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesisAlternative title
Utvärdering av laser pulverbädd processen för Haynes 282 (Swedish)
Abstract [en]

Additive manufacturing has played an important role in revolutionizing the manufacturing industry by providing expedited processes to manufacture the products with low cost, high production efficiency, and building complex part using fewer resources. Laser powder bedfusion (LPBF) is one of the additive manufacturing processes applicable for widespread materials and holds variable parameters to be set depending on the material required for the best possible product properties outcome. Haynes 282, a recent discovery, exhibited its extraordinary thermo-mechanical properties and was readily developed for high-temperature structures on an industrial scale. The development of Haynes 282 products with laser powder bed fusion (LPBF) process, needed to be investigated for the desired product properties withvarying process parameter combinations. With this process and unique parametric combination for each sample, a total of 24 samples for Haynes 282 were produced. These variable combinations of parameters for the process allowed us to find the optimized parameters leading to desired product properties. These samples were investigated under a microscope and characterized for their defects and melt pool study studies. Each sample exhibited aunique defect pattern and melt pool build, upon which the parameters were assessed and optimized. A comparison was built between the samples exhibiting extreme characterization values to evaluate the behaviour of the parameters affecting these values and extract the optimized parameters for an effective desired sample build with minimal defects while establishing a consolidated correlation between the parameters and the observed output.

Place, publisher, year, edition, pages
2022. , p. 27
Keywords [en]
Haynes 282, additive manufacturing, LPBF, melt pool, porosity
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:hv:diva-19146Local ID: EXP800OAI: oai:DiVA.org:hv-19146DiVA, id: diva2:1696304
Subject / course
Mechanical engineering
Educational program
Masterprogram i tillverkningsteknik
Supervisors
Examiners
Available from: 2022-09-23 Created: 2022-09-16 Last updated: 2022-09-23Bibliographically approved

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Citation style
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  • de-DE
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  • nn-NB
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  • Other locale
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