| 摘要 |
A method for manufacturing a component having at least one internal cavity. The method includes: providing at least a first preformed core element (10) of metallic material that comprises at least one cavity having at least a first opening (12), which is covered by a cover element (30) having a first side (33) and second side (34), wherein said first side (33) is gastight joined to said at least first core element (10); providing a form (50), at least partially defining the shape of the component, that at least partially surrounds said at least first core element (10) and said cover element (30); filling said form with metallic filling material; heating, in a heating chamber that is pressurized with gas, during a predetermined time period at a predetermined temperature and a predetermined isostatic pressure so that a metallurgical bond is achieved between said at least first core element (10), said cover element (30) and said metallic filling material, wherein said at least first core element (10) is arranged such that, after filling said form with metallic filling material, said at least second side (34) of said cover element (30) is covered with metallic filling material and such that said cavity during heating is pressurized to the predetermined isostatic pressure. |
