Platform Development Of Processing Accuracy Analysis And Control Software On Aero Thin-Walled Parts

Aluminum alloy-thin wall part is more and more used in the field of aerospace equipment, because of its good characteristic, such as high strength, light weight, high bearing capacity. But these parts exist poor rigid rigidity and easy deformation, it is difficult to control the processing precision and it has other manufacturing bottlenecks. This paper just rounds the issues of these parts’ machining accuracy analysis and control, combines the theoretical analysis, finite element simulation and programming techniques, carries out the platform development of the aerospace thin-wall parts’ machining accuracy analysis and control, and applies the platform.Firstly, through analyze the existing research results of the research group’ summary and consider corporate needs, this paper puts forward the three layer structure of the development platform, and plans the main function modules of the platform; By comparing different development tools and analysis tools, Choose VB as the platform development tool, ACCESS as the platform database, ANSYS as the finite element analysis software.Then, it intensively elucidates the key technology used in the development platform and realized. Built the thin-walled parts’ information modeling by drawing information descriptive method, proposed to use the ANSYS parametric design language APDL as an interface language, Design and develop various command flow macro document templates, and loading them into the platform, in order to realize the friendly communication between the user layer and the application layer. On this basis, design the platform database and logical relationship based on the relational model database.Then, on the basis of the above key technical, design and develop the main function modules of the platform; Milling force estimation model; Based on the cutting force experience formula and engineering experiment, establish the milling force estimation model. Based on the topological theory, design the topological analysis process of the thin-walled parts’ anchor points layout.Based on the stiffness priority principle and the method of element birth and death, design the work piece deformation analysis process under the different processes Sequence. Based on the above work, develop the user interface and realize the development of the Platform main function module’design. The above research results are tested for application on a thin-walled multi-frame part of an aerospace enterprise, analysis of test results show that this technology is feasible and effective. The analysis process and software platfonn developed in this paper is an supplementary tool for aviation aluminum thin-walled pieces clamping and process sequence optimization, besides it will be an basic technical for the further analysis of the process automation.