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2024
1 Ha, Taekwang; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
Smart Control of Springback in Stretch Bending of a Rectangular Tube by an Artificial Neural Network. Journal of Manufacturing Science and Engineering 2024
NTNU Untitled
 
2023
2 Akram, Md Ali; Holthe, Ragnar; Ringen, Geir.
Rapid Sorting of Post-consumer Scrap Aluminium Alloys Based on Laser-Induced Breakdown Spectroscopy (LIBS). IFIP Advances in Information and Communication Technology 2023 ;Volum 4. s. 241-255
NTNU Untitled
 
3 Assuad, Carla Susana A; Øien, Christian Dalheim; Ringen, Geir.
Circularity assessment of the effects of customer preferences towards sustainable development on producers for aluminum-based products in Norway. Procedia CIRP 2023 ;Volum 120. s. 804-809
NTNU Untitled
 
4 Ha, Taekwang; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
On Kinematics in Sequential Three-Dimensional Stretch Bending: Analytical Springback Model. International Manufacturing Science and Engineering Conference (MSEC 2023); 2023-06-12 - 2023-06-13
NTNU Untitled
 
5 Ha, Taekwang; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
On Kinematics in Sequential Three-Dimensional Stretch Bending: Analytical Springback Model. Journal of Manufacturing Science and Engineering 2023 ;Volum 145.(7) s. -
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6 Holthe, Ragnar; Ringen, Geir.
Rapid Sorting of Post-consumer Scrap Aluminium Alloys Based on Laser-Induced Breakdown Spectroscopy (LIBS). IFIP International Conference on Advances in Production Management Systems; 2023-09-18 - 2023-09-20
NTNU Untitled
 
7 Ringen, Geir.
Case innen verdikjedebetraktninger i Industri 4.0. I: Industri 4.0 - digitalisering av prosesser i produksjon. Fagbokforlaget 2023 ISBN 9788245039931. s. 161-166
NTNU Untitled
 
8 Ringen, Geir.
Produktutvikling. I: Industri 4.0 - digitalisering av prosesser i produksjon. Fagbokforlaget 2023 ISBN 9788245039931. s. 23-36
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9 Ringen, Geir; Furu, Trond.
Aluminium long span suspension bridges - ambitions, opportunities and challenges. 15th International Aluminium Conference - INALCO; 2023-10-11 - 2023-11-13
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10 Ringen, Geir; Sandnes, Lise; Welo, Torgeir; Rolle, R..
The effect of gap variations on the quality of thick-walled FSW joints. The 12th Aluminium Two Thousand World Congress; 2023-09-18 - 2023-09-22
NTNU Untitled
 
11 Sariyarlioglu, Eren Can; Negozio, Marco; Ma, Jun; Welo, Torgeir; Ringen, Geir.
Effect of Die Design on Charge Welds in Aluminium Extrusion. The 14th International Conference on the Technology of Plasticity; 2023-09-24 - 2023-09-29
NTNU Untitled
 
12 Sariyarlioglu, Eren Can; Negozio, Marco; Ma, Jun; Welo, Torgeir; Ringen, Geir.
Effect of Die Design on Charge Welds in Aluminium Extrusion. Springer 2023 (ISBN 978-3-031-41022-2) 11 s.
NTNU Untitled
 
13 Sarkar, Aritra; Razavi, Nima; Ringen, Geir; Welo, Torgeir.
Assessing the fatigue behaviour of recycled Al-alloys: A critical review. Materialia 2023 ;Volum 32.
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14 Welo, Torgeir; Ringen, Geir.
Factors impacting implementation of Lean in Engineering. Lean Six Sigma World Conference; 2023-03-15 - 2023-03-16
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2022
15 Elkjær, Aksel Sean; Ringen, Geir; Bjørge, Ruben; Hagen, Catalina Hoem Musinoi; Lædre, Sigrid; Magnusson, Niklas.
Reliability of Bolted Aluminum Busbars for Battery Systems: Effect of Nickel Coating and Corrosive Environment. IEEE Transactions on Transportation Electrification 2022 ;Volum 9.(1) s. 1060-1071
NTNU SINTEF ENERGISINT Untitled
 
16 Elkjær, Aksel Sean; Sørhaug, Jørgen A; Ringen, Geir; Bjørge, Ruben; Grong, Øystein.
Electrical and thermal stability of Al-Cu welds: Performance benchmarking of the hybrid metal extrusion and bonding process. Journal of Manufacturing Processes 2022 ;Volum 79. s. 626-638
NTNU SINTEF Untitled
 
17 Fragapane, Giuseppe; Schulte, Kjersti Øverbø; Eleftheriadis, Ragnhild; Reke, Eivind; Ringen, Geir.
A Cross-disciplinary, cross-organizational approach to sustainable design and product innovation in the aluminum industry. Procedia CIRP 2022 ;Volum 107. s. 59-64
SRAUFOSS NTNU Untitled
 
18 Kovalevskaya, Daria; Pedersen, Ann-Charlott; Holmen, Elsebeth; Kaloudis, Aris; Ringen, Geir.
Triads in Lean Management: Analyzing Buyer–Supplier-Supplier and Buyer–Supplier-Supplier’s Supplier Relationships for Zero-Defect Manufacturing. Journal of the Knowledge Economy 2022 s. -
NTNU Untitled
 
19 Ma, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir; Ringen, Geir.
On Dimensional Control in Rotary Stretch Bending of Aluminum Profiles: Loading-Path Effects. Manufacturing Letters 2022 ;Volum 33. s. 242-248
NTNU Untitled
 
20 Mitcheltree, Christina Marie; Holtskog, Halvor; Ringen, Geir.
Towards a shared vision in innovation projects: Understanding actor involvement as a preventative approach against defensive routines for innovation capability. Procedia CIRP 2022 ;Volum 107. s. 34-39
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21 Ringen, Geir.
Value Chain Data Integrity and Quality - A Case Study. INCOSE International Symposium 2022 ;Volum 32.(S2) s. 90-98
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22 Ringen, Geir; Landsem, Kristin Lorentzen; Holtskog, Halvor.
Design for Excellence to Explore Complex Product Service Systems: A Case Study. Procedia CIRP 2022 ;Volum 109. s. 690-694
NTNU Untitled
 
23 Ringen, Geir; Welo, Torgeir.
Framework for Predicting Dimensional Accuracy of 3D-Formed Aluminum Profiles – Based on Industry 4.0 Principles. ET22 - Aluminum Extruders Council; 2022-05-03 - 2022-05-05
NTNU Untitled
 
24 Ringen, Geir; Welo, Torgeir; Breivik, Sissel Marie.
Rapid Manufacturing of Die-casting Tools - a Case Study. Procedia CIRP 2022 ;Volum 107. s. 1565-1570
NTNU Untitled
 
25 Shafqat, Ali; Oehmen, Josef; Welo, Torgeir; Ringen, Geir.
The role of risk mitigation actions in engineering projects: An empirical investigation. Systems Engineering 2022 ;Volum 25.(6) s. 584-608
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2021
26 Ha, Taekwang; Ma, Jun; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
A computer vision-based, in-situ springback monitoring technique for bending of large profiles. 24th International Conference on Material Forming; 2021-04-14 - 2021-04-16
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27 Ha, Taekwang; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
A strategy for on-machine springback measurement in rotary draw bending using digital image-based laser tracking. The International Journal of Advanced Manufacturing Technology 2021 ;Volum 119. s. 705-718
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28 Hansen, Irina-Emily; Mork, Ola Jon; Welo, Torgeir; Ringen, Geir.
Bridging the ‘Valley of Death’: Can Agile Principles Be Applied in Industry-Academia Research and Innovation Projects?. Journal of the Knowledge Economy 2021 s. -
NTNU Untitled
 
29 Ma, Jun; Tronvoll, Sigmund Arntsønn; Welo, Torgeir; Ringen, Geir.
On Dimensional Control in Rotary Stretch Bending of Aluminum Profiles: Loading-Path Effects. 50th SME North American Manufacturing Research Conference (NAMRC 50, 2022); 2021-06-27 - 2021-07-01
NTNU Untitled
 
30 Ma, Jun; Welo, Torgeir; Ringen, Geir.
Efficient Prediction of Real-Time Forming Forces in Flexible Stretch Bending. 24th International Conference on Material Forming; 2021-04-14 - 2021-04-16
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31 Ringen, Geir; Welo, Torgeir.
Material substitution innovation - trajectories towards circular economy. XXXII ISPIM Innovation Conference - Innovating Our Common Future; 2021-06-20 - 2021-06-23
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32 Ringen, Geir; Welo, Torgeir.
Material substitution innovation - trajectories towards circular economy. I: Proceedings on the 2021 ISPIM innovation conference : Innovating our common future. ISPIM Lappeenranta University of Technology Press 2021 ISBN 9789523354678.
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2020
33 Ha, Taekwang; Ma, Jun; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
In-line Springback Measurement for Tube Bending Using a Laser System. 23rd International Conference on Material Forming; 2020-05-04 - 2020-05-08
NTNU Untitled
 
34 Ha, Taekwang; Ma, Jun; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
In-line Springback Measurement for Tube Bending Using a Laser System. Procedia Manufacturing 2020 ;Volum 47. s. 766-773
NTNU Untitled
 
35 Ha, Taekwang; Murudkar, Rahul; Hartwig, Karl; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
A feasibility study of continuous grain refinement of sheet metal. 48th SME North American Manufacturing Research Conference; 2020-06-22 - 2020-06-26
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36 Ha, Taekwang; Murudkar, Rahul; Hartwig, Karl; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
A feasibility study of continuous grain refinement of sheet metal. Procedia Manufacturing 2020 ;Volum 48. s. 379-387
NTNU Untitled
 
37 Holtskog, Halvor; Ringen, Geir.
The insufficiency of lean tradition - Lean meets kodak moments. Procedia CIRP 2020 ;Volum 93. s. 944-948
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38 Ma, Jun; Ha, Taekwang; Blindheim, Jørgen; Welo, Torgeir; Ringen, Geir; Li, Heng.
Exploring the Influence of Pre/Post-Aging on Springback in Al-Mg-Si Alloy Tube Bending. Procedia Manufacturing 2020 ;Volum 47. s. 774-780
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39 Ma, Jun; Ha, Taekwang; Welo, Torgeir; Blindheim, Jørgen; Ringen, Geir.
Exploring the Influence of Pre/Post-Aging on Springback in Al-Mg-Si Alloy Tube Bending. 23rd International Conference on Material Forming; 2020-05-04 - 2020-05-08
NTNU Untitled
 
40 Ringen, Geir; Holtskog, Halvor; Welo, Torgeir.
A Novel Value Driven Co-creation Framework. I: Advances in Production Management Systems : The Path to Digital Transformation and Innovation of Production Management Systems : IFIP WG 5.7 International Conference, APMS 2020, Novi Sad, Serbia, August 30 – September 3, 2020, Proceedings, Part I. Springer Nature 2020 ISBN 978-3-030-57992-0. s. 663-671
NTNU Untitled
 
41 Ringen, Geir; Lodgaard, Eirin Anita.
Interorganizational Learning in Manufacturing Networks. APMS 2020; 2020-08-30 - 2020-09-03
SRAUFOSS NTNU Untitled
 
42 Ringen, Geir; Pålsrud, Frode Gulbrandsen; Lodgaard, Eirin Anita.
Interorganizational Learning in Manufacturing Networks. I: Advances in Production Management Systems : The Path to Digital Transformation and Innovation of Production Management Systems : IFIP WG 5.7 International Conference, APMS 2020, Novi Sad, Serbia, August 30 – September 3, 2020, Proceedings, Part I. Springer Nature 2020 ISBN 978-3-030-57992-0. s. 680-686
NTNU SRAUFOSS Untitled
 
43 Ringen, Geir; Welo, Torgeir.
Material substitution innovation - trajectories towards circular economy. I: Proceedings of the 2020 ISPIM Innovation Conference (Virtual) Event : Innovating in Times of Crisis. ISPIM Lappeenranta University of Technology Press 2020 ISBN 9789523354661.
NTNU Untitled
 
44 Welo, Torgeir; Ma, Jun; Blindheim, Jørgen; Ha, Taekwang; Ringen, Geir.
Flexible 3D Stretch Bending of Aluminium Alloy Profiles: An Experimental and Numerical Study. Procedia Manufacturing 2020 ;Volum 50. s. 37-44
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45 Welo, Torgeir; Ma, Jun; Blindheim, Jørgen; Ha, Taekwang; Ringen, Geir.
Flexible 3D Stretch Bending of Aluminium Alloy Profiles: An Experimental and Numerical Study. 18th International Conference on Metal Forming; 2020-09-13 - 2020-09-16
NTNU Untitled
 
46 Welo, Torgeir; Ringen, Geir; Ma, Jun.
An overview and evaluation of alternative forming processes for complex aluminium products. Procedia Manufacturing 2020 ;Volum 48. s. 82-89
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47 Welo, Torgeir; Ringen, Geir; Rossi, Monica.
Investigating Maturity of Lean Culture in Product Development Teams. Lecture Notes in Networks and Systems 2020 ;Volum 122. s. 375-384
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2019
48 Barua, Deep; Welo, Torgeir; Ringen, Geir; Wang, Jyhwen.
An experimental study on interference friction welding process. Procedia Manufacturing 2019 ;Volum 41. s. 1149-1155
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49 Beste, Carina; Welo, Torgeir; Ringen, Geir.
Newness and Outcomes in Commodity-Driven New-Product Development Projects: A Survey in the Norwegian Manufacturing Industry. Procedia CIRP 2019 ;Volum 84.(29) s. 749-754
NTNU Untitled
 
50 Mitcheltree, Christina Marie; Holtskog, Halvor; Ringen, Geir.
Studying design thinking as a forthcoming source to innovation speed. Proceedings of the International Conference on Engineering Design 2019 ;Volum 1.(1) s. 2357-2366
NTNU Untitled
 
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