Tungsten has been widely used in aerospace

medical equipment

weapons and other cutting-edge fields because of its high melting point

high thermal conductivity

low sputtering and other advantages. However

high melting point and low temperature brittleness make tungsten unsui-table for traditional casting and machining. In particular

traditional sintering technology has the disadvantages of low density and low strength. Additive manufacturing technology can not only avoid low temperature brittle fracture in tungsten processing

but also meet the requirements of preparing complex structure. Therefore

additive manufacturing techno-logy will become one of the effective methods for manufac-turing pure tungsten. In this paper

the principle

develop-ment status and existing problems of two additive manufac-turing technologies（selective laser cladding

electron beam selective melting） for manufacturing pure tungsten are sum-marized. This paper analyzes and discusses the great development potential and good application prospect of additive manufacturing technology in pure tungsten manufac-turing

including the monitoring and control of thermal cycle in additive process

the diversification of material morphology

and the integration of structure optimization and advanced manufacturing combined with topology optimization technology.