Correlating melt pool geometry with temperature dynamics in laser directed energy deposition with wire : insights and industrial implications
Atieh Sahraeidolatkhaneh, Morgan Nilsen, Fredrik Sikström
Morgan Nilsen
Senior Lecturer
Doktor i produktionsteknik
Organization
Staff member at Division of Industrial automation.Research area
Conducts research in engineering and technology, production technology.Research interest
My research area is automation with a special focus on sensors, control technology and process monitoring of welding processes and additive manufacturing.
Teaching/supervision
I teach sensor technology, signals and systems for engineering students at the bachelor's level. I also teach sensor technology and autonomous robots in the master's program in automation and robotics and examine degree jobs at both bachelor's and master's level.
Keywords
Welding automation, welding monitoring, control technology, sensor technology, signal processing, image processing.
Research gate
https://www.researchgate.net/profile/Morgan_Nilsen
Publications
http://swepub.kb.se/hitlist?q=Morgan+Nilsen&r=%3bpers%3a(Nilsen+Morgan)&d=swepub&m=10&p=1&s=c
Publications
Beam Offset Detection in Laser Stake Welding of T-Joints Using a Convolutional Neural Network
Morgan Nilsen, Yongcui Mi, Fredrik Sikström
In-situ Imaging for Temperature Estimation in Laser Directed Energy Deposition with Wire Feedstock Using a Convolutional Neural Network
Atieh Sahraeidolatkhaneh, Morgan Nilsen, Amit Kumar Mishra, Fredrik Sikström
Deep Learning for Joint Gap Width Classification and Tack Weld Detection in Laser Beam Welding
Yongcui Mi, Fredrik Sikström, Morgan Nilsen, Amit Kumar Mishra, Antonio Ancona
Beam shaping with a deformable mirror for gap bridging in autogenous laser butt welding
Yongcui Mi, Pasquale Guglielmi, Morgan Nilsen, Fredrik Sikström, Gianfranco Palumbo, Antonio Ancona
Beam Offset Detection in Laser Stake Welding of Tee Joints Using Machine Learning and Spectrometer Measurements
Aydin Jadidi, Yongcui Mi, Fredrik Sikström, Morgan Nilsen, Antonio Ancona
Beam offset detection in laser stake welding of tee joints based on photodetector sensing
Fredrik Sikström, Morgan Nilsen
Monitoring and control of laser beam butt joint welding
Morgan Nilsen
Robust vision-based joint tracking for laser welding of curved closed-square-butt joints
Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson, Antonio Ancona
Detecting beam offsets in laser welding of closed-square-butt joints by wavelet analysis of an optical process signal
Arianna Elefante, Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson, Tommaso Maggipinto, Antonio Ancona
Optical detection of joint position in zero gap laser beam welding
Morgan Nilsen
Joint tracking in zero gap laser beam welding using a vision sensor
Morgan Nilsen, Fredrik Sikström, Anna Karin Christiansson
Vision systems for in‐process monitoring of laser beam welding
Fredrik Sikström, Morgan Nilsen
Optical Methods for In-Process Monitoring of Laser Beam Welding
Fredrik Sikström, Morgan Nilsen, Ingemar Eriksson
Influence of Substrate Preheating on Processing Dynamics and Microstructure of Alloy 718 Produced by Directed Energy Deposition Using a Laser Beam and Wire
Atieh Sahraeidolatkhaneh, Achmad Ariaseta, Gökçe Aydin, Morgan Nilsen, Fredrik Sikström
Integrated vision-based seam tracking system for robotic laser welding of curved closed square butt joints
Morgan Nilsen, Fredrik Sikström
Anomaly detection in optical monitoring of laser beam welding
Morgan Nilsen
System identification and closed-loop control of laser hot-wire directed energy deposition using the parameter-signature-quality modeling scheme
Mostafa Rahmani Dehaghani, Atieh Sahraeidolatkhaneh, Morgan Nilsen, Fredrik Sikström, Pouyan Sajadi, Yifan Tang, G. Gary Wang
Monitoring and control of directed energy deposition using a laser beam
Antonio Ancona, Fredrik Sikström, Anna-Karin Christiansson, Morgan Nilsen, Yongcui Mi, Agnieszka Kisielewicz
Vision based beam offset detection in laser stake welding of T-joints using a neural network
Yongcui Mi, Fredrik Sikström, Morgan Nilsen, Antonio Ancona
A study on change point detection methods applied to beam offset detection in laser welding
Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson
Adaptive control of the filler wire rate during laser beam welding of squared butt joints with varying gap width
Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson
In-process Monitoring and Control of Robotized Laser Beam Welding of Closed Square Butt Joints
Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson, Antonio Ancona
Monitoring of Varying Joint Gap Width During Laser Beam Welding by a Dual Vision and Spectroscopic Sensing System
Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson, Antonio Ancona
Vision and spectroscopic sensing for joint tracing in narrow gap laser butt welding
Morgan Nilsen, Fredrik Sikström, Anna-Karin Christiansson, Antonio Ancona
Evaluation of non-contact methods for joint tracking in a laser beam welding application
Fredrik Sikström, Anna Runnemalm, Patrik Broberg, Morgan Nilsen, Edvard Svenman
Monitoring of laser beam welding by a non-intrusive optical sensor system using photodiodes
Morgan Nilsen, Fredrik Sikström