Browsing NTNU Open by Author "Tronvoll, Sigmund Arntsønn"
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A new method for assessing anisotropy in fused deposition modeled parts using computed tomography data
Tronvoll, Sigmund Arntsønn; Vedvik, Nils Petter; Elverum, Christer Westum; Welo, Torgeir (Journal article; Peer reviewed, 2019)Voids in fused deposition modeled (FDM) parts are assumed to be a key driver for their anisotropic behavior. However, these assumptions are based on investigations of voids using only 2D data (microscopy images). This paper ... -
Combining Additive Manufacturing and Flexible Tooling for Utilization in Rotary Stretch Bending Processes
Lundby, Vegard (Master thesis, 2023)Metallforming er en produksjonsmetode som møtes med høye krav fra flere avanserte ingeniørindustrier. Denne masteroppgaven vil undersøke potensialet for å kombinere verktøy utviklet med additiv tilvirkning og metallformi ... -
Design av støttebein for vekselflakcontainere
Bachvarov, Dimitar Ivanov; Bergh, Mathias Østen (Bachelor thesis, 2024)Denne oppgaven presenterer en konseptutviklingsprosess og er i samarbeid med bedriften MEXO AS. Målet med oppgaven har vært å designe et konsept for automatiseringsvennlige støttebein til vekselflakcontainere. Konseptet ... -
Dimensional accuracy of threads manufactured by fused deposition modeling
Tronvoll, Sigmund Arntsønn; Elverum, Christer Westum; Welo, Torgeir (Journal article; Peer reviewed, 2018)For parts manufactured by fused deposition modeling (FDM), helical threads drawn in accordance with normal standards (e.g. ISO 68-1), tend to end up deformed when manufactured. These dimensional imperfections typically ... -
Experimental and numerical investigation of filled thermoset polymers as mechanical interface in fine tolerance applications
Tronvoll, Sigmund Arntsønn (Master thesis, 2015)As a part of reducing costly processes in production of marine thrusters, casting and machining of large steel parts is proposed to be replaced by welding of smaller elements. This does however require a procedure for ... -
In-Process Monitoring of Springback in Industrial Bending Using a Laser Sensor-Based Method
He, Xu; Ma, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir (Peer reviewed; Journal article, 2022)Bent tubes and profiles are widely used in many industries such as automotive, aerospace and shipbuilding. In bending of tubes and profiles, springback is normally regarded as a challenge, affecting the dimensional accuracy ... -
Investigating pressure advance algorithms for filament-based melt extrusion additive manufacturing: theory, practice and simulations
Tronvoll, Sigmund Arntsønn; Popp, Sebastian; Elverum, Christer Westum; Welo, Torgeir (Journal article; Peer reviewed, 2019)Purpose – This paper aims to present the mathematical foundation of so-called advance algorithms, developed to compensate for defects during acceleration and deacceleration of the print head in filament-based melt extrusion ... -
Konstruksjon av skipskran
Onsøien, Ida Elise; Tangen, Thea Seglem (Bachelor thesis, 2023)I denne bacheloroppgaven har to studenter skrevet sin fremgangsmåte for å konstruere en skipskran. Det har blitt laget deler av en skipskran i CAD-program etter krav, hvor bom og tårn har blitt designet. Hensikten med ... -
Low-cost tooling concept for customized tube bending by the use of additive manufacturing
Tronvoll, Sigmund Arntsønn; Treffen, Helena; Ma, Jun; Welo, Torgeir (Peer reviewed; Journal article, 2023)Bending is commonly used in the manufacturing of finished and semi-finished, profilebased products. However, costly profile and bend geometry dependent tooling hampers its applicability for low volume production or ... -
On the applicability of fused deposition modeling for prototyping
Tronvoll, Sigmund Arntsønn (Doctoral theses at NTNU;2019:155, Doctoral thesis, 2019)During the last decade, fused deposition modeling (FDM) has managed to become the most used additive manufacturing technology for rapid prototyping. The surge in application of FDM is thought to be due to a severe price ... -
Prediction and analysis of real-time forces in novel 3D flexible rotary stretch forming of complex profiles
Ma, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir (Peer reviewed; Journal article, 2023)Three-dimensional (3D), flexible rotary stretch bending is a new forming technology that enables manufacturing complex components, like 3D profiles with varying curvatures, thus addressing several limitations of conventional ... -
Prototype Experiments: Strategies and Trade-offs
Tronvoll, Sigmund Arntsønn; Elverum, Christer Westum; Welo, Torgeir (Journal article; Peer reviewed, 2017)Throughout the whole product development process, there is always a question on whether the proposed product is “up to its task”, and often it is up to the engineer or designer to answer these questions. In many cases, ... -
The effects of voids on structural properties of fused deposition modelled parts: a probabilistic approach
Tronvoll, Sigmund Arntsønn; Welo, Torgeir; Elverum, Christer Westum (Journal article; Peer reviewed, 2018)In the search to understand the functional capabilities and limitations of fused deposition modelling (FDM) manufactured components, control over their structural behaviour is crucial. For example, voids introduced during ... -
Utforming av spoleapparat for forspenning av ståltau på vinsj
Hole, Marina; Sandaas, Daniel; Vaaland, Ole Adrian (Bachelor thesis, 2023)Målet med dette prosjektet har vært å utvikle et apparat som kan brukes til å spole et ståltau over på en vinsj med tilstrekkelig forspenningskraft. Dette reduserer risikoen for at ståltauet graver seg ned i underliggende ...