公开(公告)号：US5618633A

公开(公告)日：1997-04-08

申请号：US274171

申请日：1994-07-12

申请人： Roger A. Swanson ,  Terry M. Nelson ,  James R. Barrett ,  Laxmappa Hosamani

发明人： Roger A. Swanson ,  Terry M. Nelson ,  James R. Barrett ,  Laxmappa Hosamani

IPC分类号： B22C9/04 ,  B22D25/02 ,  B32B3/12 ,  E04C2/30

CPC分类号： B22D25/02 ,  B22C9/04 ,  Y10T428/1234

摘要： A metal article, at least a portion of which has a honeycomb structure, is described. The article was produced by an investment casting process. The metal casting comprises a base and plural walls which form a honeycomb structure that project outwardly in a first direction from at least a portion of the base. The base typically has a thickness of about 5 mm or less. The honeycomb structure may be defined by plural cells having geometric shapes. For instance, plural interconnected regular polygons, such as plural interconnected pentagons or hexagons, plural irregular interconnected polygons, or plural regular and irregular interconnected polygons may be used. The maximum distance between any two points on the periphery of the cell and passing through the interior space defined by the geometric shape is about 40 mm. The walls of the casting may have a wall thickness of from about 0.3 mm to about 3.2 mm thick. The method for forming the metal casting comprises first forming a pattern having a base, preferably with a thickness of 5 mm or less, and plural walls that extend upwardly from the base and define a honeycomb structure. A mold is formed around the pattern by surrounding the pattern with a refractory material. The pattern is then removed to form a void within the mold in the shape of the pattern. The void is then filled with a molten metal composition. The metal composition is allowed to solidify in the shape of the desired article, and the mold is then removed.

摘要翻译： 描述了至少一部分具有蜂窝结构的金属制品。 该文章是通过投资流程制作的。 金属铸件包括基部和多个壁，其形成蜂窝结构，其从基部的至少一部分沿第一方向向外突出。 基部通常具有约5mm或更小的厚度。 蜂窝结构可以由具有几何形状的多个单元限定。 例如，可以使用多个互连的正多边形，例如多个互连的五边形或六边形，多个不规则互连的多边形，或多个规则和不规则的互连的多边形。 细胞周边的任何两个点之间的距离通过由几何形状限定的内部空间的最大距离约为40mm。 铸件的壁可具有约0.3mm至约3.2mm厚的壁厚。 用于形成金属铸件的方法包括首先形成具有基部的图案，优选地具有5mm或更小的厚度，以及从基部向上延伸并限定蜂窝结构的多个壁。 通过用耐火材料包围图案在模具周围形成模具。 然后去除图案以在模具中形成为图案形状的空隙。 然后用熔融金属组合物填充空隙。 允许金属组合物以所需制品的形状固化，然后除去模具。