Research and Application of the NX-Based Computer Aided Tolerance Design (CATD)

As the core part of dimension management, tolerance optimal design plays an increasingly important role in the whole process of product development. As the appearance of CATD, the designer can solve the problem of the dimension of the development and design process. This paper introduced the fundamentals of computer aided tolerance design (CATD) and analyzed its important function in mechanical manufacturing. The paper also proposed an outline of the design process of CATD and the tolerance optimal design process and employed a display case to study the design methods of computer aided tolerance. Finally, the application of tolerance design function in NX was used to show the efficiency of achieving product optimization design.