Segregated multi-material metal-matrix composite tools

A method for fabricating an infiltrated metal-matrix composite (MMC) drill bit, comprising:

• positioning at least one boundary form within an infiltration chamber of a mold assembly and thereby segregating the infiltration chamber into at least a first zone and a second zone, wherein the mold assembly includes a mold and a funnel operatively coupled to the mold and defines a plurality of blade cavities;
• depositing reinforcement materials into the infiltration chamber, the reinforcement materials including a first composition loaded into the first zone and a second composition loaded into the second zone;
• and
• after positioning the at least one boundary form within the infiltration chamber, infiltrating the first and second compositions with at least one binder material, and thereby providing the infiltrated MMC tool with differing mechanical, chemical, physical, thermal, atomic, magnetic, or electrical properties between the first and second zones.