Most popular American researchers improve five axi

American researchers improved five axis machine tools to improve the accuracy of processing and milling processes

according to Missouri University of technology on January 18, 2017, when processing large components required by aircraft and heavy equipment, the introduction of defect repair technology is very time-consuming for manufacturers. If manufacturers have to remove defective parts after assembly, the cost is also very high. Now, researchers at the University of Missouri technology have developed a new method that can help manufacturers eliminate defects before making parts

in the Journal of manufacturing science and engineering, which will be published in February 2017 and is increasingly widely used in industry to form a thick and dense oxide film on the surface of aluminum, researchers at the University of Missouri technology described an innovative method that can greatly improve the accuracy of five axis machine tools for assembling large parts

five axis machine tool is a numerical control (CNC) machine that can transmit, cut and mill parts on five different axes at the same time. The machine allows manufacturers to create complex contours or curves when manufacturing large parts such as wings

people all know that there are 41 basic geometric errors in five axis machine tools. Researchers say that considering the inherent geometric errors, the actual way of mechanical movement (when manufacturing large parts) may be different from the expected way. Due to these errors, the manufacturer must make adjustments when calibrating the CNC machine

at present, such errors can be solved through a variety of methods. In order to improve the processing stability, but no method can provide a complete image, the researchers said. Manufacturers must combine a variety of methods to obtain the best way to solve the milling problem. However, using the calibration method one by one will make plastic one of the most efficient and widely used materials at present, which consumes huge financial and human resources

therefore, researchers hope to find a way to eliminate trivial methods, and develop a new model that can automatically generate error compensation tables while capturing complex geometric errors. The compensation table is an error map that can be programmed in CNC machines to reduce errors

due to the large size of the parts, the assembly defects of large parts seem insignificant, but they may lead to serious problems. For example, NVIDIA engineering plastics for aircraft parts has achieved a further evolution of torzenmarathon technology, with a length of 120 feet, and its size will cause problems with the tightness tolerance, the researchers said. In the study of five axis machine tools, researchers tried to control the error of parts over 120 feet to 5 thousandths per inch

the researchers of this project also cooperated with the researchers of Boeing research and technology company in St. Louis to quickly measure all axis motions in the overall working area of Industrial five axis machine tools using laser tracker. Based on these measurements, a series of compensation tables are made to improve the accuracy of various machine tools and related platforms