Additive manufacturing is one of the development directions of advanced manufacturing technology. The application of civil aircraft additive manufacturing technology depends on the maturity of additive manufacturing technology

airworthiness verification technology and the perfection of material standard system. In this paper

A–100 and TC18 materials used in the typical structure of landing gear of civil aircraft are studied in the application of laser / electron beam additive manufacturing technology

and a material and process certification

mechanical property characterization

internal quality control and nondestructive testing evaluation system meeting the airworthiness requirements is established.