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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Azevedo, Nuno Monteiro |
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Portoles, Luis
Instituto Tecnológico Metalmecánico, Mueble, Madera, Embalaje y Afines
in Cooperation with on an Cooperation-Score of 37%
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document
Pure Copper Processed By Electron Beam Melting (EBM) Technology For Industrial Applications
Abstract
Electron beam melting (EBM) is an additive manufacturing (AM) technology based on powder bed fusion (PBF) which directly enables the metal parts manufacturing from a 3D data. In this technology, the powder is processed in a vacuum chamber reaching temperature values close to 50 % respect to the melting point of the printing metal alloy. Therefore, parts processed under these conditions are exposed to low oxygen level, offering little level of distortions because of the slow solidification process. EBM technology builds parts layer by layer by means of an electron beam which melts locally and selectively a uniform powder bed, creating a slice and a cross-section of the object. Then, the build platform is iteratively lowered and a new powder bed is laid, after that the energy source melts the following slice. Among other materials, AIDIMME works in the development, processing and qualification of pure copper processed by EBM. Particularly, heating induction is one of the main applications in which AIDIMME has been focused on along the last three years. In a heating induction process, a conductive metal such as copper is heated by electromagnetic induction. In this work, the Electron Beam Melting (EBM) technology is presented as a new method to process pure copper induction coils. Based on the wide knowledge and expertise acquired, AIDIMME has implemented the processing of pure copper by EBM at industrial level. This has implied an extensive study of the process parameters together with the control of all the experimental variables which affects the production. The research has been conducted on an Arcam A2 (Figure 1) device at the facilities of AIDIMME (Valencia, Spain). This equipment is used in research activities for processing different type of metal materials, including standard and novel ones. The hardware has been modified along this research in order to ensure the proper material processing, thus most part of the results refers to a non EBM standard system.