oru.sePublikationer
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Laser AM-printade aluminiumkomponenter: Framtagning av Materialegenskaper och "Design Guidelines"
Örebro University, School of Science and Technology.
Örebro University, School of Science and Technology.
2015 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
AM-Printed Aluminium Components : Development of Material Properties and "Design Guidelines" (English)
Abstract [sv]

Vid skapande av CAD modeller som senare ska användas till 3D-printing är det viktigt att känna till begränsningarna och vad som skiljer sig från traditionell bearbetning. I många rapporter står det att 3D-printing ger frihet till konstruktören samt att vilka former och geometrier som helst kan skapas, men är det så att det finns begränsningar och blir resultatet av utskriften det som 3D modellen bestämt? En annan fråga är hur är det med matrealegenskaperna hos 3D-printad AlSi10Mg, stämmer det överens med maskintillverkarens uppgifter och finns det anisotropiska skillnader i hållfastheten beroende på utskriftsriktning? I denna studie kommer ett skovelblad utskrivet i AlSi10Mg att genomgå en 3D-röntgen för att sedan jämföras mot CAD modellen för att undersöka den första frågan. Den andra frågan kommer att undersökas med hjälp av provstavar utskrivna i tre riktningar. Studiens resultat kan summeras i tre punkter, första visar att det finns begränsningar som ligger i parallellitet med önskad noggrannhet. Den andra visar att "staircase effect" påverkar måttavvikelsen beroende av yt-normalens riktning och tredje att materialegenskaperna inte påverkas av utskriftsriktningen men däremot påverkas geometrin och ytstrukturen.

Abstract [en]

The use of Computer-Aided Design (CAD) processes an idea for a product into a 3D-model file. This type of file transforms to STL file format that used by 3D-printing machine. The important things must be considered and attended are the limitation and difference of Additive Manufacturing technologies from traditional manufacturing. Many reports point out that 3D-printing gives the possibility to build complex and impossible geometries. However, does the 3D-printing give the result as the inputs from the 3D-model? And what is the strength of material for the 3D-printed parts using AlSi10Mg metal powder, if that gives the result as the given material data and have any anisotropic strength induced by the precipitation? In this study, the turbine blades was printed out by using AlSi10Mg as the built material and run 3D-scan to visualize it into another 3D-model.These two type of 3D-models were inserted together to compare and found out the deviation between the desired model and the printed model. To answer the second question, the three different orientations of samples were printed out and went to run the tensile testing. The result can be summarized into three points, the first is the limitation of accuracy depends on the desired tolerances of the model, the second is the deviation of the parts depends on the staircase effect, which gives different level of effect on different geometries and the last is the material strength is not influenced by the built orientations, on the other hand the built orientations influence geometry and the surface finish.

Place, publisher, year, edition, pages
2015.
Keyword [en]
Additive manufacturing, DMLS, aluminium, shape change
Keyword [sv]
Additiv tillverkning, DMLS, aluminium, formförändring
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:oru:diva-45705OAI: oai:DiVA.org:oru-45705DiVA: diva2:850860
Subject / course
Mechanical Engineering
Supervisors
Examiners
Available from: 2015-09-02 Created: 2015-09-02 Last updated: 2017-10-17Bibliographically approved

Open Access in DiVA

No full text

By organisation
School of Science and Technology
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

Total: 99 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf