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1

Increased stability in laser metal wire deposition through feedback from optical measurements

Almir Heralić, Anna-Karin Christiansson, Mattias Ottosson, Bengt Lennartson

Journal:

Optics and Lasers in Engineering

Year:

2010

Language:

english

File:

PDF, 645 KB

english, 2010

2

Height control of laser metal-wire deposition based on iterative learning control and 3D scanning

Almir Heralić, Anna-Karin Christiansson, Bengt Lennartson

Journal:

Optics and Lasers in Engineering

Year:

2012

Language:

english

File:

PDF, 1.28 MB

english, 2012

3

Temperature control of robotic friction stir welding using the thermoelectric effect

De Backer, Jeroen, Bolmsjö, Gunnar, Christiansson, Anna-Karin

Journal:

The International Journal of Advanced Manufacturing Technology

Year:

2014

Language:

english

File:

PDF, 681 KB

english, 2014

4

Resistance measurements for control of laser metal wire deposition

Hagqvist, Petter, Heralić, Almir, Christiansson, Anna-Karin, Lennartson, Bengt

Journal:

Optics and Lasers in Engineering

Year:

2014

Language:

english

File:

PDF, 862 KB

english, 2014

5

Emissivity estimation for high temperature radiation pyrometry on Ti–6Al–4V

Hagqvist, Petter, Sikström, Fredrik, Christiansson, Anna-Karin

Journal:

Year:

2013

Language:

english

File:

PDF, 417 KB

english, 2013

6

[IEEE 2006 9th International Conference on Control, Automation, Robotics and Vision - Singapore (2006.12.5-2006.12.8)] 2006 9th International Conference on Control, Automation, Robotics and Vision - Accuracy Investigation of a Vision Based System for Pose Measurements

Ryberg, Anders, Christiansson, Anna-Karin, Eriksson, Kenneth

Year:

2006

Language:

english

File:

PDF, 353 KB

english, 2006

7

[IEEE 2006 IEEE Instrumentation and Measurement Technology - Sorrento, Italy (2006.04.24-2006.04.27)] 2006 IEEE Instrumentation and Measurement Technology Conference Proceedings - 3D-Scanning for Weld Distortion Measuring

Sikstrom, Fredrik, Ericsson, Mikael, Nylen, Per, Christiansson, Anna-Karin

Year:

2006

Language:

english

File:

PDF, 1.99 MB

english, 2006

8

[IEEE EUROCON 2007 - The International Conference on "Computer as a Tool" - Warsaw, Poland (2007.09.9-2007.09.12)] EUROCON 2007 - The International Conference on "Computer as a Tool" - Simulation for Design of Automated Welding

Sikstrom, Fredrik, Christiansson, Anna-Karin, Lennartson, Bengt

Year:

2007

Language:

english

File:

PDF, 1.03 MB

english, 2007

9

[IEEE IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society - Vienna, Austria (2013.11.10-2013.11.13)] IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society - Automatic detection of material phase transitions from spectroscopic data

Hagqvist, Petter, Christiansson, Anna-Karin

Year:

2013

Language:

english

File:

PDF, 253 KB

english, 2013

10

Resistance based iterative learning control of additive manufacturing with wire

Hagqvist, Petter, Heralić, Almir, Christiansson, Anna-Karin, Lennartson, Bengt

Journal:

Year:

2015

Language:

english

File:

PDF, 731 KB

english, 2015

11

Emissivity compensated spectral pyrometry for varying emissivity metallic measurands

Hagqvist, Petter, Sikström, Fredrik, Christiansson, Anna-Karin, Lennartson, Bengt

Journal:

Measurement Science and Technology

Year:

2014

Language:

english

File:

PDF, 338 KB

english, 2014

12

Emissivity compensated spectral pyrometry—algorithm and sensitivity analysis

Hagqvist, Petter, Sikström, Fredrik, Christiansson, Anna-Karin, Lennartson, Bengt

Journal:

Measurement Science and Technology

Year:

2014

Language:

english

File:

PDF, 1.46 MB

english, 2014

13

[IEEE 2015 IEEE International Conference on Automation Science and Engineering (CASE) - Gothenburg, Sweden (2015.8.24-2015.8.28)] 2015 IEEE International Conference on Automation Science and Engineering (CASE) - Automation of a laser welding system for additive manufacturing

Hagqvist, Petter, Christiansson, Anna-Karin, Heralic, Almir

Year:

2015

Language:

english

File:

PDF, 1.88 MB

english, 2015

14

[IEEE 2015 IEEE International Conference on Automation Science and Engineering (CASE) - Gothenburg, Sweden (2015.8.24-2015.8.28)] 2015 IEEE International Conference on Automation Science and Engineering (CASE) - Model based feedback control of gas tungsten arc welding — An experimental study

Sikstrom, Fredrik, Christiansson, Anna-Karin, Lennartson, Bengt

Year:

2015

Language:

english

File:

PDF, 1.27 MB

english, 2015

15

Investigation of path compensation methods for robotic friction stir welding

De Backer, Jeroen, Christiansson, Anna‐Karin, Oqueka, Jens, Bolmsjö, Gunnar

Journal:

Industrial Robot / An International Journal

Year:

2012

Language:

english

File:

PDF, 396 KB

english, 2012

16

FAULT TOLERANT MULTIVARIABLE CONTROL OF A MILITARY TURBOFAN ENGINE

Ring, Dan, Christiansson, Anna-Karin, Härefors, Melker

Journal:

IFAC Proceedings Volumes

Year:

2005

Language:

english

File:

PDF, 1.33 MB

english, 2005

17

Control Design for Automation of Robotized Laser Metal-wire Deposition

Heralić, Almir, Christiansson, Anna-Karin, Hurtig, Kjell, Ottosson, Mattias, Lennartson, Bengt

Journal:

IFAC Proceedings Volumes

Year:

2008

Language:

english

File:

PDF, 1.23 MB

english, 2008

18

Vision and spectroscopic sensing for joint tracing in narrow gap laser butt welding

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin, Ancona, Antonio

Journal:

Optics & Laser Technology

Year:

2017

Language:

english

File:

PDF, 2.09 MB

english, 2017

19

Weight selection for H ∞ -control using genetic algorithms

Christiansson, Anna-Karin, Lennartson, Bengt

Journal:

IFAC Proceedings Volumes

Year:

1999

Language:

english

File:

PDF, 3.71 MB

english, 1999

20

MULTI CRITERIA SAMPLED-DATA H∞ CONTROL APPLIED TO THE CHOICE OF SAMPLING RATE AND ANTI-ALIAS FILTER

Lennartson, Bengt, Middleton, Rick, Christiansson, Anna-Karin, Fransson, Carl-Magnus

Journal:

IFAC Proceedings Volumes

Year:

2005

Language:

english

File:

PDF, 282 KB

english, 2005

21

Monitoring of Varying Joint Gap Width During Laser Beam Welding by a Dual Vision and Spectroscopic Sensing System

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin, Ancona, Antonio

Journal:

Physics Procedia

Year:

2017

Language:

english

File:

PDF, 1.31 MB

english, 2017

22

Detecting beam offsets in laser welding of closed-square-butt joints by wavelet analysis of an optical process signal

Elefante, Arianna, Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin, Maggipinto, Tommaso, Ancona, Antonio

Journal:

Optics & Laser Technology

Year:

2019

Language:

english

File:

PDF, 2.34 MB

english, 2019

23

[Laser Institute of America ICALEO® 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing - Orlando, Florida, USA (October 23–27, 2011)] International Congress on Applications of Lasers & Electro-Optics - Automatic in-process control of laser metal-wire deposition based on sensor feedback

Heralić, Almir, Christiansson, Anna-Karin

Year:

2011

Language:

english

File:

PDF, 426 KB

english, 2011

24

Robust vision-based joint tracking for laser welding of curved closed-square-butt joints

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin, Ancona, Antonio

Journal:

The International Journal of Advanced Manufacturing Technology

Year:

2018

Language:

english

File:

PDF, 1.96 MB

english, 2018

25

Investigation of effects from realistic influences on inductive gap measurement

Svenman, Edvard, Christiansson, Anna-Karin

Journal:

Year:

2019

Language:

english

File:

PDF, 3.25 MB

english, 2019

26

Adaptive control of the filler wire rate during laser beam welding of squared butt joints with varying gap width

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin

Journal:

The International Journal of Advanced Manufacturing Technology

Year:

2019

Language:

english

File:

PDF, 965 KB

english, 2019

27

Investigation of effects from realistic influences on inductive gap measurement

Svenman, Edvard, Christiansson, Anna-Karin

Journal:

Year:

2019

File:

PDF, 3.25 MB

2019

28

Adaptive control of the filler wire rate during laser beam welding of squared butt joints with varying gap width

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin

Journal:

The International Journal of Advanced Manufacturing Technology

Year:

2019

File:

PDF, 965 KB

2019

29

Experimental validation of an inductive probe for narrow gap measurement based on numerical modelling

Svenman, Edvard, Christiansson, Anna-Karin, Runnemalm, Anna

Journal:

Year:

2019

File:

PDF, 1.63 MB

2019

30

Spectroscopic monitoring of laser blown powder directed energy deposition of Alloy 718

Kisielewicz, Agnieszka, Sikström, Fredrik, Christiansson, Anna-Karin, Ancona, Antonio

Journal:

Procedia Manufacturing

Year:

2018

Language:

english

File:

PDF, 805 KB

english, 2018

31

A study on change point detection methods applied to beam offset detection in laser welding

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin

Journal:

Procedia Manufacturing

Year:

2019

Language:

english

File:

PDF, 996 KB

english, 2019

32

In-process Monitoring and Control of Robotized Laser Beam Welding of Closed Square Butt Joints

Nilsen, Morgan, Sikström, Fredrik, Christiansson, Anna-Karin, Ancona, Antonio

Journal:

Procedia Manufacturing

Year:

2018

Language:

english

File:

PDF, 1.07 MB

english, 2018

33

In-process spectroscopic detection of chromium loss during Directed Energy Deposition of alloy 718

Kisielewicz, Agnieszka, Sadeghi, Esmaeil, Sikström, Fredrik, Christiansson, Anna-Karin, Palumbo, Gianfranco, Ancona, Antonio

Journal:

Materials & Design

Year:

2019

Language:

english

File:

PDF, 4.29 MB

english, 2019