CDW aluminium joints welding and optimisation with NDT/mechanical testing
| Autor: | Marta De Giorgi, Francesco W. Panella, A. Carofalo, V. Dattoma, Fania Palano |
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| Přispěvatelé: | Panella, Francesco, Dattoma, Vito, De Giorgi, Marta, Palano, Fania, Carofalo, Alessio, Panella, F. W., Dattoma, V., De Giorgi, M., Palano, F., Carofalo, A. |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Materials science Residual stress chemistry.chemical_element Mechanical engineering Residual stre Welded joints 02 engineering and technology Welding Industrial and Manufacturing Engineering law.invention 020901 industrial engineering & automation Electrical resistance and conductance Aluminium law Nondestructive testing Aluminium alloy Al 5754 Capacitor discharge welding Fatigue tests Ultrasonic test Spot welding Capacitor discharge welding Welded joints Al 5754 Fatigue tests Ultrasonic test Residual stress business.industry Mechanical Engineering Computer Science Applications Capacitor chemistry Control and Systems Engineering visual_art visual_art.visual_art_medium business Software Fatigue test |
| DOI: | 10.1007/s00170-019-03412-y?wt_mc=Internal.Event.1.SEM.ArticleAuthorOnlineFirst&utm_source=ArticleAuthorOnlineFirst&utm_medium=email&utm_content=AA_en_06082018&ArticleAuthorOnlineFirst_20190225 |
| Popis: | This work investigates the possibility to apply the improved hybrid capacitor discharge welding (CDW) process, based on projection welding principles, to aluminium alloy Al 5754. The CDW process is an electrical resistance welding technology, realised with high-intensity current pulses discharged by large capacitors. The innovative aspect is the effective possibility to weld aluminium alloys with CDW process and improve the mechanical weld characteristics and the presence of defects as a function of the technological parameters; intrinsic CDW process characteristics need to be investigated on the basis of interaction between the technological and geometrical aspects and the related mechanical properties, in order to improve welding shape and reduce defect size. In order to optimise the process, visual and ultrasonic inspections of the most significant welded joints were performed, and residual stress values were checked; in addition, high-cycle fatigue tests after room temperature tensile tests were executed to optimise the weldments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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