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| Naji, M. |
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Gook, Sergej
Fraunhofer Institute for Production Systems and Design Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (34/34 displayed)
- 2024Application of Hybrid Laser Arc Welding for Construction of LNG Tanks Made of Thick Cryogenic 9% Ni Steel Plates
- 2024Application of AI-based welding process monitoring for quality control in pipe production
- 2024AI-based welding process monitoring for quality control in the manufacture of large-diameter pipes
- 2024AI-based welding process monitoring for quality control in large-diameter pipe manufacturing ; AI-based welding process monitoring for quality control in the manufacture of large-diameter pipes
- 2023Application of Hybrid Laser Arc Welding for Construction of LNG Tanks Made of Thick Cryogenic 9% Ni Steel Platescitations
- 2023Application of Hybrid Laser Arc Welding for Construction of LNG Tanks Made of Thick Cryogenic 9% Ni Steel Platescitations
- 2023Retaining Mechanical Properties of GMA-Welded Joints of 9%Ni Steel Using Experimentally Produced Matching Ferritic Filler Metal
- 2022Hybrid laser‑arc welding of laser‑ and plasma‑cut 20‑mm‑thick structural steelscitations
- 2022Retaining Mechanical Properties of GMA-Welded Joints of 9%Ni Steel Using Experimentally Produced Matching Ferritic Filler Metal
- 2022Multiple-wire submerged arc welding of high-strength fine-grained steels
- 2022Hybrid Laser-Arc Welding of Thick-Walled, Closed, Circumferential Pipe Weldscitations
- 2022Hybrid Laser-Arc Welding of Thick-Walled, Closed, Circumferential Pipe Weldscitations
- 2022Laser beam welding of additive manufactured components: Applicability of existing valuation regulations
- 2022Joining 30 mm Thick Shipbuilding Steel Plates EH36 Using a Process Combination of Hybrid Laser Arc Welding and Submerged Arc Weldingcitations
- 2022Material-adapted and process-reliable multi-wire submerged arc welding of large-diameter pipes
- 2022Hybrid laser-arc welding of laser- and plasma-cut 20-mm-thick structural steelscitations
- 2021Method for defect-free hybrid laser-arc welding of closed circumferential welds
- 2020Shielded metal arc welding of 9%Ni steel using matching ferritic filler metalcitations
- 2020Hybrid laser-arc welding of thick-walled pipe segments with optimization of the end cratercitations
- 2020Hybrid laser arc welding of thick high-strength pipeline steels of grade X120 with adapted heat inputcitations
- 2019Investigation of the mechanical properties of single-pass hybrid laser-arc welded thick X120 pipeline steel plates
- 2019Mechanical Properties of Single-pass Hybrid Laser Arc Welded 25 mm Thick-walled Structures Made of Fine-grained Structural Steelcitations
- 2019Laser Welding of SLM-Manufactured Tubes Made of IN625 and IN718citations
- 2019Hybrid laser arc welding of thick plates X8Ni9 for LNG tank construction
- 2018Orbital hybrid laser-arc welding using a high-power fibre laser for pipeline construction
- 2017Application of D-optimum experimental designs in consideration of restrictions for laser metal deposition
- 2017Hybrid laser arc welding of X80 and X120 steel grade
- 2015Laser-GMA-hybrid welding of longitudinally welded large-diameter pipes of grades API-X80/X100 to increase the toughness and the production efficiency
- 2015Laser and hybrid laser-arc welding of cryogenic 9%Ni steel for construction of LNG storage tanks
- 2014Hybrid laser arc welding of X80 and X120 steel gradecitations
- 2013Laser-hybrid welding for pipe production and pipe laying of thick large diameter pipes
- 2013Prospects of application of laser-GMA hybrid welding for manufacturing of large diameter longitudinal welded high strength steel pipes
- 2013High power laser beam welding
- 2009Laser-Hybrid Welding of Thick Plates up to 32 mm Using a 20 kW Fibre Lasercitations
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article
Multiple-wire submerged arc welding of high-strength fine-grained steels
Abstract
Ensuring the required mechanical-technological properties of welds is a critical issue in the application of multi-wire submerged arc welding processes for welding high-strength fine-grained steels. Excessive heat input is one of the main causes for microstructural zones with deteriorated mechanical properties of the welded joint, such as a reduced notched impact strength and a lower structural robustness. A process variant is proposed which reduces the weld volume as well as the heat input by adjusting the welding wire configuration as well as the energetic parameters of the arcs, while retaining the advantages of multiwire submerged arc welding such as high process stability and production speed.