• Additive Manufactured Robot Grippers With Advanced Functionality 

      Steen, Sverre (Master thesis, 2016)
      Kongsberg Automotive produces injection molded parts. These are removed from the mold with a robot gripper. These robot grippers have grown larger as the complexity of the molds grew. This has increased the amount of ...
    • Additiv tilvirkning av ekstruderingsverktøy med optimaliserte kjølekanaler 

      Sandøy, Rune Kringstad (Master thesis, 2015)
      For ekstrudering av aluminium er temperatur en viktig parameter. Høyere temperatur fører til redusert belastning på maskin og verktøy, samtidig som for høy temperatur fører til risiko for feil på produktet. Det er også ...
    • Additiv Tilvirkning som Produksjonsmetode for Verktøyholdere 

      Grøstad, Erling (Master thesis, 2016)
      Additiv tilvirkning (AM) er en produksjonsmetode der en lagvis bygger opp komponenter basert på informasjon fra en 3-dimensjonal modell uten behov for å først produsere verktøy som for eksempel støpeformer eller ...
    • A modular CNC machine 

      Simonsen, Runar Weidemann (Master thesis, 2018)
      This report assesses different design solutions for a modular CNC-machine with capabilities for additive production, CNC-milling and laser engraving. The design is meant for a target group where hobbyists and home-enthusiasts ...
    • An investigation of outlier detection procedures for CMM measurement data 

      Chelishchev, Petr; Popov, Aleksandr; Sørby, Knut (Journal article; Peer reviewed, 2018)
      The paper analyses methods for outlier detection in dimensional measurement. The cross sections of an internal cylinder were inspected by CMM (coordinate measuring machine), and received data sets were employed for further ...
    • CAM for avanserte verktøymaskiner 

      Halvorsen, Bjarte (Master thesis, 2015)
      Avanserte verktøymaskiner er kjennetegnet ved funksjonaliteten maskinene har for å orientere, i tillegg til å posisjonere, verktøyet relativt til arbeidsstykket. Funksjonaliteten for å endre den relative orienteringen av ...
    • CAM-programvare for CNC-programmering 

      Andfossen, Alexander John (Master thesis, 2017)
      Autodesk Fusion 360 ble introdusert i 2013 og har siden utviklet seg til å bli den foretrukne programvaren for CAD/CAM blant de ansatte på verkstedet på MTP Valgrinda, NTNU. Det har frem til nå manglet en postprosessor til ...
    • Dataassistert toleransesetting 

      Sundal, Frode Andre (Master thesis, 2016)
      Denne masteroppgaven tar for seg hvordan geometriske produktspesifikasjoner kan bli redigert og inspisert ved hjelp av dataassistert toleransesetting. Metodene som benyttes i dag er i stor grad erfaringsbaserte og det ...
    • Determination of Anisotropic Mechanical Properties for Materials Processed by Laser Powder Bed Fusion 

      Hovig, Even Wilberg; S. Azar, Amin; Grytten, Frode; Sørby, Knut; Andreassen, Erik (Journal article; Peer reviewed, 2019)
      Improving the success rate in additive manufacturing and designing highly optimized structures require proper understanding of material behaviour. This study proposes a novel experimental method by which anisotropic ...
    • Effect of Processing Parameters on the Relative Density of AlSi10Mg Processed by Laser Powder Bed Fusion 

      Hovig, Even Wilberg; Holm, Håkon Dehli; Sørby, Knut (Journal article, 2019)
      In order for a material processed by laser powder bed fusion (LPBF) to achieve the desired mechanical properties, the relative density of the material should be as high as possible. In this study, the effect of various ...
    • Formation of Built-Up Layer on the Tool in Turning Operation of Magnesium Alloys 

      Tomac, Nikola; Sørby, Knut; Doboviček, Sandro (Journal article; Peer reviewed, 2018)
      The present work highlights some factors which affect formation of a protective built-up layer (BUL) on the rake face of the cutting tool when cutting magnesium alloys. This work suggests that BUL can positively affect ...
    • High cycle fatigue life estimation of AlSi10Mg processed by laser powder bed fusion 

      Hovig, Even Wilberg; S. Azar, Amin; Sunding, Martin Fleissner; Sørby, Knut; M'hamdi, Mohammed; Andreassen, Erik (Journal article, 2018)
      Fatigue life is known to be dependent on the surface properties of the material. Surface roughness provokes local stress concentration and cause crack initiation even at minute cyclic loads. In laser powder bed fusion, the ...
    • High cycle fatigue life estimation of AlSi10Mg processed by laser powder bed fusion 

      Hovig, Even Wilberg; S. Azar, Amin; Sunding, Martin Fleissner; Sørby, Knut; M'hamdi, Mohammed; Andreassen, Erik (Journal article; Peer reviewed, 2018)
      Fatigue life is known to be dependent on the surface properties of the material. Surface roughness provokes local stress concentration and cause crack initiation even at minute cyclic loads. In laser powder bed fusion, the ...
    • High cycle fatigue life estimation of materials processed by laser powder bed fusion 

      Hovig, Even Wilberg; S. Azar, Amin; Sunding, Martin Fleissner; Andreassen, Erik; Sørby, Knut (Journal article, 2019)
      The fatigue life of metal components is known to depend on the surface topography. For components made by laser powder bed fusion, the roughness of the as‐built surfaces depends on the orientation of the component surface ...
    • High cycle fatigue life estimation of materials processed by laser powder bed fusion 

      Hovig, Even Wilberg; S. Azar, Amin; Sunding, Martin Fleissner; Andreassen, Erik; Sørby, Knut (Journal article; Peer reviewed, 2019)
      The fatigue life of metal components is known to depend on the surface topography. For components made by laser powder bed fusion, the roughness of the as‐built surfaces depends on the orientation of the component surface ...
    • High-Pressure Cooling in Turning of Inconel 625 with Ceramic Cutting Tools 

      Sørby, Knut; Vagnorius, Zydrunas (Journal article; Peer reviewed, 2018)
      Machining of heat resistant aerospace materials such as Inconel 625 or Inconel 718 is characterized by low cutting speeds, high tool wear rate, and high production costs. The machinability of heat resistant super alloys ...
    • Improvement of the Positioning Accuracy of Industrial Robots 

      Johnsrud, Vegard (Master thesis, 2014)
      Industriroboter er godt kjent for sin høye repeterbarhet, noe som reflekteres i deres hovedbruksområde i industrien, deriblant pick and place -operasjoner og punktsveising. Med det økende behovet for automatisering i ...
    • Metal Penetration in Additively Manufactured Venting Slots for Low-Pressure Die Casting 

      Hovig, Even Wilberg; Sørby, Knut (Journal article; Peer reviewed, 2018)
      Venting of excess gas and air in casting moulds is of critical importance to avoid defects such as misruns and porosities. Additive manufacturing give mould designers a possibility to make venting slots in large areas and ...
    • Pneumatic Components and Alumina Feeding Equipment HAL4e 

      Øystese, Simen Vatslid (Master thesis, 2015)
      This thesis presents the current design variations and possible solutions for optimisation of the alumina distribution system for the next generation aluminium production cell. The alumina distribution system is of high ...
    • Precision turning with instrumented vibration-damped boring bars 

      Sørby, Knut; Østling, Dan (Journal article; Peer reviewed, 2018)
      The paper presents the theoretical background and experimental results with a new approach for achieving high accuracy in finish turning with slender tools. The approach is developed especially for high-accuracy turning ...