• Exploring the Influence of Pre/Post-Aging on Springback in Al-Mg-Si Alloy Tube Bending 

      Ma, Jun; Ha, Taekwang; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Li, Heng (Peer reviewed; Journal article, 2020)
      Aluminium alloy (Al-alloy) bent tube is one kind of strategic lightweighting components, which attracts application in industrial clusters, such as automobile, aerospace, etc. To meet the demands on high-precision ...
    • Flexible 3D Stretch Bending of Aluminium Alloy Profiles: An Experimental and Numerical Study 

      Welo, Torgeir; Ma, Jun; Blindheim, Jørgen; Ha, Taekwang; Ringen, Geir (Peer reviewed; Journal article, 2020)
      Three-dimensionally (3D) shaped extrusions are attracting increased attention in order to meet the ever-growing demands on weight reduction to obtain lower emissions in the automobile industry. With the current transformation ...
    • In-line Springback Measurement for Tube Bending Using a Laser System 

      Ha, Taekwang; Ma, Jun; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen (Peer reviewed; Journal article, 2020)
      Tube bending process is extensively used for many industrial fields such as the automotive, shipbuilding, and aircraft manufacturing industries. However, one limitation of the tube bending process is that it is not easy ...
    • A new mechanical calibration strategy for U-channel extrusions 

      Raknes, Christian Arne; Ma, Jun; Welo, Torgeir; Paulsen, Frode (Peer reviewed; Journal article, 2020)
      The extrusion process of aluminum profiles introduces dimensional variations commonly exceeding the dimensional tolerance requirements for fit-up and assembly when using automated welding processes in the automotive industry. ...
    • An overview and evaluation of alternative forming processes for complex aluminium products 

      Welo, Torgeir; Ringen, Geir; Ma, Jun (Peer reviewed; Journal article, 2020)
      Many industries are facing new forces that cause upheaval in the way products are designed, engineered, produced and used. Consumer preferences in terms of personalization and customization, sustainability criteria and the ...