MANUFACTURING OF A METAL COMPONENT OR A METAL MATRIX COMPOSITE COMPONENT INVOLVING CONTACTLESS INDUCTION OF HIGH-FREQUENCY VIBRATIONS

摘要

The present invention relates to a system for contactless induction of high-frequency vibrations in a volume of molten metal (1) during the manufacturing of a metal component or a metal matrix composite component. The system comprises a moveably arranged electromagnetic primary coil (2), adjustment means (3) for adjusting the position of the primary coil (2), and a control unit (5) for controlling the position of the primary coil (2) to a predefined distance above and not in physical contact with an upper free surface (4) of the molten metal (1) during use of the system. In some embodiments of the invention the molten metal (1) is contained in a foundry crucible (7) during manufacturing. In other embodiments, the system is used for an additive manufacturing system, so that the primary coil (2) is arranged above the melt pool (16). In both embodiments, a secondary low-frequency electromagnetic coil (9) may be arranged around and at a distance from the molten metal (1). This secondary coil (9) is used to induce flow and/or vibrations in the molten metal (1) which is particularly useful during manufacturing of large components.