| 摘要 |
<p>A method of manufacturing a hollow article (10) comprising the steps of cold pressing two members (30,34) to form at least one depression (32,36) in the members (30,34). Arranging the two members (30,34) in abutting relationship such that the at least one depression (32,36) defines at least one chamber between the two members (30,34). Sealing (41) the edges (40,42) of the two members (30,34) together to form a core structure (44). Positioning the core structure (44) in a mould (46) to define a cavity (48) between the external surface (50) of the core structure (44) and the internal surface (52) of the mould (46), the internal surface (52) of the mould (46) substantially defining the external shape of the hollow article (10). Filling the cavity (48) between the core structure (44) and the mould (46) with a powder material (54), sealing the open edge of the core structure (44) to the mould (46). Removing gases from the cavity (48) containing the powder material (54), applying heat and pressures to consolidate the power material to form the hollow article (10) in the cavity (46) and removing the mould (46) from the hollow article (10).</p> |
