Selection of Parameters for Optimized WAAM Structures for Civil Engineering Applications
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 resource-saving manner (additive vs. subtractive) by properly reinforcing existing steel components. Two fundamental questions a...
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| Veröffentlicht in: | Materials 2023-07, Vol.16 (13), p.4862 |
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| creator | Sharifi, Saham Sadat Fritsche, Sebastian Holzinger, Christoph Enzinger, Norbert |
| description | 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 resource-saving 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. |
| doi_str_mv | 10.3390/ma16134862 |
| format | Article |
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Fronius, Upper Austria) welding process, wire arc additive manufacturing (WAAM) enables companies to fabricate steel components in a resource-saving 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.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma16134862</identifier><identifier>PMID: 37445175</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>3D printing ; Additive manufacturing ; Arc welding ; Carbon steel ; Civil engineering ; Cold welding ; Construction industry ; Geometry ; Hardness ; Hardness tests ; Investigations ; Iron and steel industry ; Mechanical properties ; Metallography ; Microhardness ; Process parameters ; Software ; Steel industry ; Welded structures ; Welding ; Welding parameters ; Wire ; Wire industry</subject><ispartof>Materials, 2023-07, Vol.16 (13), p.4862</ispartof><rights>COPYRIGHT 2023 MDPI AG</rights><rights>2023 by the authors. Licensee MDPI, Basel, Switzerland. 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| source | PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | 3D printing Additive manufacturing Arc welding Carbon steel Civil engineering Cold welding Construction industry Geometry Hardness Hardness tests Investigations Iron and steel industry Mechanical properties Metallography Microhardness Process parameters Software Steel industry Welded structures Welding Welding parameters Wire Wire industry |
| title | Selection of Parameters for Optimized WAAM Structures for Civil Engineering Applications |
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