In addition to the tool beyond a reasonable choice, whether it is a reasonable choice of cutting parameters directly affect the processing of their quality and the level of processing efficiency. While most manufacturers are able to provide the tool line speed vc (speed n), the amount of feed per tooth fz (feed f) Both the cutting parameters, but I'm cutting parameters East that manufacturers provide tools undoubtedly are limited, Because most of the upper limit obtained by cutting tests and specimens with strong rigidity when cutting tests, "so they offer special cutting parameters for roughing stage piece has strong rigidity when, for the workpiece has a weak rigidity finishing stage, but can not accurately determine cutting parameters. "Obviously, this is the main characteristic of a weak rigidity aviation products, the problem is even more prominent.

   "Limitations of the cutting tool parameters provided by the manufacturer that does not consider the impact of machine, tool clamping way, after a long overhang tool holder, workpiece characteristics of the cutting parameters; the core issue that is not the tool, the machine and workpiece as a whole systems to consider the impact on cutting parameters. "Lin Dong pointed out that" under normal circumstances, our high-speed processing machine processing efficiency only foreign 1 / 10-1 / 4, and sometimes even lower. for the aviation industry, the fundamental reason that there is no country for aviation product features high-speed cutting tool parameters database "Thus, Chang Fei company Beijing University of Aeronautics and Astronautics and jointly conducted the" application of CNC machining process optimization technique based on simulation of the cutting process, "the project topic;. seeks A quick way to get a new high-speed cutting parameters to replace the traditional "test cut" method, used in aviation to create a high-speed processing tool cutting parameters database.