Aircraft skin parts are characterized with complex shape

large size

weak rigidity

difficult to machine and so on. Recently

the skin mirror milling technology appeared as a high precision green machining technology. Due to the weak rigidity of the skin blank

the gravity of the blank and the clamping force will cause deformation

which will result in the deviation between the actual surface and the design surface of the blank. To solve the above problem

an adaptive machining technology of aircraft large skin based on rapid scanning was proposed. The actual surface of the skin blank could be obtained quickly by laser scanning on machine

and then the machining program was transplanted based on a feature mapping method. The transplanted machining program has been successfully applied to practical production. The proposed adaptive machining technology solves the key problem of the skin mirror milling technology

can generate the machining program efficiently and satisfy the requirements of the form accuracy and thickness accuracy of the skin parts

and improve the production efficiency of the skin effectively

which will bring significant advancement to the mass production of domestic large aircraft.