Additive manufacturing bring challenges for the nondestructive testing techniques

anisotropic and large non detection zone were the major obstacles. Therefore

researchers in the world have studied the NDT for additive manufacturing. The application of metal additive manufacturing technology in aeronautics and astronautics was introduced. The application features of NDT methods were analyzed

the research progress on nondestructive testing of metal additive manufacturing was introduced

including UT

RT

CT and FPT. The related nondestructive testing standards are analyzed. The future development direction of NDT for additive manufacturing metal components is pointed out

that is

high precision NDT

in-situ monitoring and the construction of standardization system.