In this paper

the current manufacturing status of aero-engine blades is taken as the research object. We made a brief overview of ECM

CNC machining

precision forging

the key technologies and measurement methods used in manufacturing of aero-engine blades. The implementation of coordinate positioning

measurement trajectory planning and noise reduction of coordinate measurement is also considered. And then we analyze the influence of laser probe installation accuracy

laser projection angle

depth of field on laser scanning measurement

which has certain guiding significance to the development of precision manufacturing and efficient testing technology of aero-engine blades.