Research on the Correlation Between Form Accuracy, Deformation, and Geometric Tolerances in Mechanical Design

This paper investigates the correspondence among form accuracy, deformation, and drafting tolerances, aiming to clarify the application of various tolerance grades (such as the IT grades defined in ISO standards) in mechanical drafting and manufacturing. A detailed “Tolerance Grade and Deformation Correspondence Table” is constructed to support the explanation. The findings are expected to provide practical guidance for both the mechanical industry and additive manufacturing sectors.