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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Sharifi, Saham Sadat
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2023The influence of heat treatment and cold deformation on pearlitic steel characteristics
- 2023Selection of Parameters for Optimized WAAM Structures for Civil Engineering Applicationscitations
- 2022Modelling the hot deformation of a microalloyed steel
- 2022REPRESENTATION OF MICROSTRUCTURE FOR FATIGUE CRACK GROWTH IN DEM SIMULATIONS
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article
Selection of Parameters for Optimized WAAM Structures for Civil Engineering Applications
Abstract
Using the CMT (Cold Metal Transfer, F. Fronius, Upper Austria) welding process, wire arc additive manufacturing (WAAM) enables companies to fabricate steel components in a resourcesaving manner (additive vs. subtractive) by properly reinforcing existing steel components. Two fundamental questions are discussed in the current work. The first focus is on the general geometric possibilities offered by this process. The influence of various parameters, such as wire feed speed, travel speed, and torch inclination on the seam shape and build-up rate are presented. The microstructure of the manufactured components is evaluated through metallography and hardness testing. Based on the first results, print strategies are developed for different requirements. Moreover, suitable process parameter sets are recommended in terms of energy input per unit length, weld integrity and hardness distribution. The second focus is on testing and determining joint properties by analyzing the microhardness of the welded structures. The chosen parameter sets will be investigated, and steel quality equivalents according to ÖNORM EN ISO 18265 will be defined.