Blar i NTNU Open på forfatter "Blindheim, Jørgen"
-
Creating Dynamic Requirements Through Iteratively Prototyping Critical Functionalities
Kriesi, Carlo; Blindheim, Jørgen; Bjelland, Øystein; Steinert, Martin (Journal article; Peer reviewed, 2016)This paper introduces the wayfaring model for requirement generation. Rather than pre-fixing requirements, we propose exploring unknown unknowns, and suggest finding and adapting the emerging set-based requirements while ... -
Development of Observation Platform for Multi-Photon Confocal Imaging in Brains of Behaving Animals - a Novel Tool for Studying the Neuronal Circuits for Navigation and Memory
Blindheim, Jørgen (Master thesis, 2015)Through a user-centered design approach various concepts that allows the observation of freely moving head fixed animals have been investigated and evaluated. Based on feedback from KI/CNC it was decided to make the detail ... -
The Effect of Cellulose Nanofibres on Dewatering during Wet-Forming and the Mechanical Properties of Thermoformed Specimens Made of Thermomechanical and Kraft Pulps
Jacobsen, Eirik Ulsaker; Følkner, Simen Prang; Blindheim, Jørgen; Molteberg, Dag Einar; Steinert, Martin; Chinga Carrasco, Gary (Journal article; Peer reviewed, 2023)Due to environmental concerns regarding single-use plastic materials, major efforts are being made to develop new material concepts based on biodegradable and renewable resources, e.g., wood pulp. In this study, we assessed ... -
Effect of Stretching on Springback in Rotary Stretch Bending of Aluminium Alloy Profiles
Ma, Jun; Welo, Torgeir; Blindheim, Jørgen; Ha, Taekwang (Journal article, 2021)Stretch bending is widely used for manufacturing profile-type parts. However, one of the challenges faced by the bending-type forming processes is springback, which significantly reduces the dimensional accuracy of formed ... -
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 ... -
First demonstration of a new additive manufacturing process based on metal extrusion and solid-state bonding
Blindheim, Jørgen; Welo, Torgeir; Steinert, Martin (Journal article; Peer reviewed, 2019)In this paper, a new additive manufacturing (AM) process based on extrusion and solid-state bonding is presented. The process uses metal feedstock wire which is processed in a continuous rotary extruder in order to disperse ... -
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 ... -
Hybrid Metal Extrusion & Bonding (HYB) - a new technology for solid-state additive manufacturing of aluminium components
Blindheim, Jørgen; Grong, Øystein; Aakenes, Ulf Roar; Welo, Torgeir; Steinert, Martin (Journal article; Peer reviewed, 2018)This paper demonstrates a concept for a new additive manufacturing process for aluminium alloys, based on the Hybrid Metal Extrusion & Bonding (HYB) technology, along with the potential for further development of the ... -
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 ... -
Investigating the mechanics of hybrid metal extrusion and bonding additive manufacturing by FEA
Blindheim, Jørgen; Welo, Torgeir; Steinert, Martin (Journal article; Peer reviewed, 2019)Hybrid Metal Extrusion & Bonding Additive Manufacturing (HYB-AM) is a hybrid manufacturing technology for the deposition of layered metal structures. This new deposition process is a complex metal forming operation, yet ... -
Multi-material Joining of an Aluminum Alloy to Copper, Steel, and Titanium by Hybrid Metal Extrusion & Bonding
Bergh, Tina; Fyhn, Hursanay; Sandnes, Lise; Blindheim, Jørgen; Grong, Øystein; Holmestad, Randi; Berto, Filippo; Vullum, Per Erik (Journal article; Peer reviewed, 2023)Hybrid metal extrusion & bonding (HYB) is a solid-state welding method where an aluminum (Al) filler wire is continuously extruded into the weld groove between the metal parts to be joined by the use of a rotating steel ... -
On intermetallic phases formed during interdiffusion between aluminium alloys and stainless steel
Bergh, Tina; Arbo, Siri Marthe; Hagen, Anette Brocks; Blindheim, Jørgen; Friis, Jesper; Khalid, Muhammad Zeeshan; Ringdalen, Inga Gudem; Holmestad, Randi; Westermann, Ida; Vullum, Per Erik (Peer reviewed; Journal article, 2022)One of the major challenges in welding of aluminium (Al) alloys and steels is the growth of brittle intermetallic phases, which depends on the thermomechanical processing history and the alloying elements. This work focuses ... -
On Solid-State Deposition of Metal Structures: Conceptualization of a New Additive Manufacturing Method based on Hybrid Metal Extrusion & Bonding
Blindheim, Jørgen (Doctoral theses at NTNU;2019:249, Doctoral thesis, 2019)This thesis presents the conceptualization of a new solid-state process for additive manufacturing (AM) of extrudable metals and alloys. The process is based on the Hybrid Metal Extrusion & Bonding (HYB) technology and has ... -
On the mechanical integrity of AA6082 3D structures deposited by hybrid metal extrusion & bonding additive manufacturing
Blindheim, Jørgen; Grong, Øystein; Welo, Torgeir; Steinert, Martin (Peer reviewed; Journal article, 2020)Hybrid Metal Extrusion and Bonding Additive Manufacturing (HYB-AM) is a new solid-state process for the production of 3D metal structures. In HYB-AM, the wire feedstock is continuously processed through an extruder and ... -
Rapid prototyping and physical modelling in the development of a new additive manufacturing process for aluminium alloys
Blindheim, Jørgen; Welo, Torgeir; Steinert, Martin (Journal article; Peer reviewed, 2019)In this work, rapid prototyping and physical modelling are used to evaluate four different extruder and deposition concepts for the Hybrid Metal Extrusion & Bonding (HYB) additive manufacturing (AM) process for aluminium ... -
Sustainable fibre materials for replacing plastics in 3D-forming applications
Jacobsen, Eirik Ulsaker (Master thesis, 2017)Plastic is a very broad family of materials that may provide a wide array of mechanical properties depending on the plastic or production method in question. This is why many industries have chosen plastic as their material ...