The CNC standard of Dongguan CNC processing factory is a trend of the development of manufacturing informatization. The information exchange in the 50 years since the birth of CNC technology is based on ISO6983 standard, that is, how to process by G and M code. Its essential feature is facing the process of machining. Obviously, Dongguan CNC processing factory has been unable to meet the needs of the rapid development of modern CNC technology. Therefore, a new CNC system standard iso14649 (step NC) is being studied and developed internationally. The purpose of this paper is to provide a neutral mechanism that does not depend on specific systems, and can describe the unified data model of the whole product life cycle, so as to realize the standardization of the whole manufacturing process and even product information in various industrial fields. The emergence of step NC may be a revolution in the field of numerical control technology. Dongguan CNC processing factory will have a profound impact on the development of CNC technology and the whole manufacturing industry. Firstly, step NC proposes a new manufacturing concept. In the traditional manufacturing concept, NC machining programs are concentrated on a single computer. Under the new standard, NC programs can be distributed on the Internet, which is the direction of open and networked development of NC technology. Secondly, step NC NC system can also greatly reduce the processing drawing (about 75%), the processing programming time (about 35%) and the processing time (about 50%).
At present, Dongguan CNC processing factory attaches great importance to the research of STEP-NC in Europe and the United States. The IMS plan of step NC has been launched in Europe (1999.1.1-2001.12.31). The program is attended by 20 cad/cam/capp/cnc users, manufacturers and academic institutions from Europe and Japan. Step tools, a global developer of manufacturing data exchange software, has developed super models for NC machine tool information exchange, with the aim of describing all processing processes with uniform specifications. At present, the new data exchange format has been verified on prototype prototype equipped with Siemens, FIDIA and European osaca-nc system.