Method for inorganic binder castings

A method for inorganic binder casting, comprising:

• selecting a shape-forming material based on pre-determined manufacturing and shape characteristics;
• forming the shape-forming material by printing the shape-forming material using at least one additive material printer to form an investment casting shell having a thin interior wall configured to receive a hot liquid metal;
• creating a liquid binder solution, the liquid binder solution configured to include at least 51% inorganic binder material by weight, the inorganic binder material having a weight ratio to the liquid binder solution between a range of 1.0 and 3.5;
• coating the shape-forming material with the liquid binder solution;
• heating and substantially dehydrating the shape-forming material;
• pouring the hot liquid metal into the investment casting shell;
• and
• allowing said hot liquid metal to cool to form an investment casting part.

A method for inorganic binder casting, comprising:

• selecting a shape-forming material based on pre-determined manufacturing and shape characteristics;
• forming the shape-forming material by printing the shape-forming material using at least one additive material printer to form a casting mold;
• creating a liquid binder solution, the liquid binder solution configured to include at least 51% inorganic binder material by weight, the inorganic binder material having a weight ratio to the liquid binder solution between a range of 1.0 and 3.5;
• coating the shape-forming material with the liquid binder solution;
• heating the shape-forming material configured to polymerize the shape-forming material with the liquid binder solution and remove a substantial portion of the liquid binder solution;
• pouring a hot liquid metal into the casting mold;
• and
• allowing said hot liquid metal to cool to form a molded part.