Blar i NTNU Open på forfatter "Leirmo, Torbjørn Langedahl"
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Deterministic part orientation in additive manufacturing using feature recognition
Leirmo, Torbjørn Langedahl; Martinsen, Kristian (Peer reviewed; Journal article, 2020)Additive Manufacturing (AM) is becoming an integral part of modern manufacturing systems and therefore, the AM technologies needs to adhere to strict quality demands. Due to the layered nature of AM, the part build orientation ... -
Extracting shape features from a surface mesh using geometric reasoning
Leirmo, Torbjørn Langedahl; Semeniuta, Oleksandr; Baturynska, Ivanna; Martinsen, Kristian (Peer reviewed; Journal article, 2020)Mesh data is extensively used in CAD/CAM applications to approximate three-dimensional (3D) solid models. The STL file format is one of the key file formats for 3D data transfer in modern manufacturing systems. STL files, ... -
Geometric Accuracy in Laser- Based Powder Bed Fusion of Polymers: Tolerance optimization by part build orientation
Leirmo, Torbjørn Langedahl (Doctoral theses at NTNU;2022:71, Doctoral thesis, 2022)As Additive Manufacturing (AM) enters the manufacturing industry, the technology must adhere to stringent quality demands in terms of dimensional and geometric accuracy. However, due to substantial differences in how these ... -
Investigating the Dimensional and Geometric Accuracy of Laser-Based Powder Bed Fusion of PA2200 (PA12): Experiment Design and Execution
Leirmo, Torbjørn Langedahl; Semeniuta, Oleksandr (Peer reviewed; Journal article, 2021)Variation management in additive manufacturing (AM) is progressively more important as technologies are implemented in industrial manufacturing systems; hence massive research efforts are focused on the modeling and ... -
Minimizing form errors in additive manufacturing with part build orientation: An optimization method for continuous solution spaces
Leirmo, Torbjørn Langedahl; Semeniuta, Oleksandr (Peer reviewed; Journal article, 2022)For additive manufacturing (AM) to be successfully implemented in manufacturing systems, the geometric accuracy of components must be controlled in terms of form, fit, and function. Because the accuracy of AM products is ... -
Proposed framework for flexible de- and remanufacturing systems using cyber-physical systems, additive manufacturing, and digital twins
Assuad, Carla Susana Aqudelo; Leirmo, Torbjørn Langedahl; Martinsen, Kristian (Peer reviewed; Journal article, 2022)Under the circular economy paradigm, de- and remanufacturing systems are more relevant than ever. However, such systems present specific challenges related to the system structure, automation, and recovery of complex ... -
Tolerancing from STL data: A Legacy Challenge
Leirmo, Torbjørn Langedahl; Semeniuta, Oleksandr; Martinsen, Kristian (Journal article; Peer reviewed, 2020)Part representation in additive manufacturing (AM) is dominated by the stereolithography (STL) file format as a universal mode for communicating and transferring part geometry from one system to another. However, when the ...