To solve the low-efficiency and the low-level automation of process decision for NC manufacture of aircraft structure parts

process design of aircraft structure parts based on the features coding is proposed in this paper. Firstly

using the group technology

processing elements of aircraft structure parts are classifed and then coded to form a table of features coding. Then

the processing features obtained by features recognition are decomposed into the processing elements

matching with the table of features coding and sorting to obtain the processing programs. Finally

process design module of aircraft structure parts based on the features coding is developed on CATIA V5.