| 摘要 |
An article may be manufactured by providing a reticulate core element (456) in a mold shell having a shape at least partially corresponding to a shape of the article. The molten metallic material is introduced to the shell so as to at least partially infiltrate into the reticulate core element (456). The molten metallic material is permitted to solidify. The shell and the reticulate core element (456) are destructively removed. The removal leaves the article with one or more gas-permeable porous regions. |
