Additive manufacturing method based on modular precision mold units

Abstract

The present disclosure belongs to the technical field of additive manufacturing (AM), and specifically relates to an AM method based on modular precision mold units. The method includes: slicing a digital model of a target three-dimensional (3D) component; manufacturing separated mold unit blanks, each including a sacrificial material pattern layer and an encapsulating mold material layer; performing precision machining; forming an integrated combined mold through stacking; removing a sacrificial material to form a cavity; injecting a material; and removing a mold after curing of the material to obtain a target component. Alternatively, the method includes: acquiring a model slice; manufacturing temporary mold units, each including a negative pattern; directly filling a final component material; performing precision machining; stacking; implementing curing and connection to form an integrated whole; and removing a temporary mold to obtain a target component. The method of the present disclosure eliminates error accumulation through modular precision machining, enabling low-cost and efficient manufacturing of large-sized, high-precision, and complex structural components.

Dependencies are inferred from the claim text.