Heat error modeling methods of NC machine tool machining holes or slots of door hardware based on genetic algorithms

According to special accuracy require of holes or grooves of door hardware, the principle of NC machining of machining holes or grooves of door hardware was put forward. Heat Error is an important factor of machining accuracy of machine tool. The way of improving machine tool accuracy by using thermal deformation compensation is a necessary intelligent module of high quality NC machine tool. The heat error modeling principle and methods based on genetic algorithms for machining holes or grooves of door hardware on the NC machine tool were raised, which are the key for compensating heat error. The most optimized heat error can be obtained by error modeling based on genetic algorithms, which can compensating the heat error of machine tool for machining holes or grooves of door hardware.