3D printing metal mold and manufacturing method thereof

The invention discloses a 3D printing metal mold and a manufacturing method thereof. The 3D printing metal mold comprises an upper base and a printing mold. The printing mold comprises a 3D printing center mold core and a plurality of 3D printing inserts; the 3D printing center mold core and the 3D printing insert are 3D printing pieces; the 3D printing center mold core and the 3D printing insert are fixed on the bottom surface of the upper base; the end surfaces, far away from the upper base, of the 3D printing center mold core and the 3D printing insert form a complete mold cavity surface; compared with the prior art, the invention has the advantages that: by adopting an embedding and splicing mode, the advantages of the conformal cooling flow channel are expanded into the whole mold, and the size of each block is controlled within the breadth of 3D printing equipment, so that the problem that the 3D printing size is limited is effectively solved. 本发明公开了一种3D打印金属模具及其制造方法，包括上基座和打印模具；打印模具包括3D打印中心模芯和若干3D打印镶件；3D