Abstract: With the development of Remanufacturing technology, it is widely used in maintenance engineering. But the coatings have peculiar machineability which makes it differ from traditional machining. The processes, from forming to cutting, of remanufacturing coatings was analyzed in this article. The E-R of the database was created. The logic model was obtained after standardization and optimization. The database and data sheets in SQL Server 2000 were created. The database system foreground application programming tools are E-language and database management software is SQL Server 2000. The machining parameters stored in the database provide the reference for relevant people, and the numerical control program can be used in CNC machine.

Key words: Temporal expression, Rule, Time expression type, Maximum entropy model,Natural language processing