Modelling additive manufacturing of superalloys

Document identifier: oai:DiVA.org:ltu-75726
Access full text here:10.1016/j.promfg.2019.05.036
Keyword: Engineering and Technology, Materials Engineering, Other Materials Engineering, Teknik och teknologier, Materialteknik, Annan materialteknik, Additive manufacturing, Simulation, Superalloys, Quality, Material Mechanics, Materialmekanik
Publication year: 2019
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Abstract:

There exist several variants of Additive Manufacturing (AM) applicable for metals and alloys. The two main groups are Directed Energy Deposition (DED) and Powder Bed Fusion (PBF). AM has advantages and disadvantages when compared to more traditional manufacturing methods. The best candidate products are those with complex shape and small series and particularly individualized product. Repair welding is often individualized as defects may occur at various instances in a component. This method was used before it became categorized as AM and in most cases, it is a DED process. PBF processes are more useful for smaller items and can give a finer surface. Both DED and PBF products require subsequent surface finishing for high performance components and sometimes there is also a need for post heat treatment. Modelling of AM as well as eventual post-processes can be of use in order to improve product quality, reducing costs and material waste. The paper describes the use of the finite element method to simulate these processes with focus on superalloys.

Authors

Lars-Erik Lindgren

Luleå tekniska universitet; Material- och solidmekanik
Other publications >>

Andreas Lundbäck

Luleå tekniska universitet; Material- och solidmekanik
Other publications >>

Martin Fisk

Malmö University, Malmö, Sweden
Other publications >>

Joar Draxler

Luleå tekniska universitet; Material- och solidmekanik
Other publications >>

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        identifier: oai:DiVA.org:ltu-75726
        datestamp: 2021-04-19T12:51:09Z
        setSpec: SwePub-ltu
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                version: 3.7
            recordInfo: 
                recordContentSource: ltu
                recordCreationDate: 2019-08-28
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75726
                10.1016/j.promfg.2019.05.036
                2-s2.0-85072396257
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Modelling additive manufacturing of superalloys
            abstract: 
There exist several variants of Additive Manufacturing (AM) applicable for metals and alloys. The two main groups are Directed Energy Deposition (DED) and Powder Bed Fusion (PBF). AM has advantages and disadvantages when compared to more traditional manufacturing methods. The best candidate products are those with complex shape and small series and particularly individualized product. Repair welding is often individualized as defects may occur at various instances in a component. This method was used before it became categorized as AM and in most cases it is a DED process. PBF processes are more useful for smaller items and can give a finer surface. Both DED and PBF products require subsequent surface finishing for high performance components and sometimes there is also a need for post heat treatment. Modelling of AM as well as eventual post-processes can be of use in order to improve product quality reducing costs and material waste. The paper describes the use of the finite element method to simulate these processes with focus on superalloys.

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Materials Engineering
                        Other Materials Engineering
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Materialteknik
                        Annan materialteknik
                    @attributes: 
                        lang: eng
                    topic: Additive manufacturing
                    @attributes: 
                        lang: eng
                    topic: Simulation
                    @attributes: 
                        lang: eng
                    topic: Superalloys
                    @attributes: 
                        lang: eng
                    topic: Quality
                    @attributes: 
                        lang: eng
                        authority: ltu
                    topic: Material Mechanics
                    genre: Research subject
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                        lang: swe
                        authority: ltu
                    topic: Materialmekanik
                    genre: Research subject
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
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                Published
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                        Lars-Erik
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                        Luleå tekniska universitet
                        Material- och solidmekanik
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                        Material- och solidmekanik
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                        Martin
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                    affiliation: Malmö University Malmö Sweden
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                        Draxler
                        Joar
                    role: 
                        roleTerm: aut
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                        Luleå tekniska universitet
                        Material- och solidmekanik
                    nameIdentifier: joadra
            originInfo: 
                dateIssued: 2019
                publisher: Elsevier
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                titleInfo: 
                    title: Procedia Manufacturing
                identifier: 2351-9789
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                            type: volume
                        number: 35
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