Research On Numerical Control Processing Technology Based On UG Aerial Thin-Walled Parts

By combining with the advanced manufacturing technologies and research results from home and abroad, the frame-type thin-walled parts that are commonly seen in the field of aviation as the application object of the engineering has been taken. Through simulation analysis and machining practice, the program of machining technology for thin-walled parts from multiple aspects has been optimized and the research on the numerical control machining technology relevant to the aerial thin-walled parts has been carried out.For the aeronautical thin-walled workpieces, the difficulties such as low rigidity, high material removal rate, easy to be intervened and so forth existed during machining, the research analyzes the major influential factors to machining deformation and residual stress on the thin-walled parts.The milling scheme for the thin-walled parts has been made in this research. During machining thin-walled parts, different distributions of residual stress on the workpiece surface will be led by varied sequences of frame machining to thin-walled parts. In order to ensure the rigidity of the thin-walled parts during machining process,the research presented that each mold cavity on thin-walled components using "outside-in" milling process order can effectively improve the milling precision. And each mold cavity on thin-walled components using "outside-in" milling path can offset machining deformation. Compared and analyzed with many different process order programs of frames and milling machining paths, we got the best process order and milling method.Based on the analysis of component’s structural characteristics and processing difficulties, we researched the component machining technology and found the best machining technology standards and analyzed model selection of jig and tool.Based on UG CAM, the simulation research on part machining has been carried out. According to the characteristic in the machine tool, UG CAM has been utilized to set parameters and the post-processing has been conducted, thus the corresponding tool path, NC procedure and workshop technological documentation have been generated. Whether the parts and machine tool are intervened or produced other phenomena via VERICUT simulation machining has been verified.In the actual production process, using the thesis machining technology successfully realize the Numerical control machining of thin-walled parts high efficiency, high precision and high reliability.After the machining practice, the effectiveness and feasibility of this machining method has been verified.