GB/T 17773-1999
ActiveTolerancing of orientation and location--Projected tolerance zone
形状和位置公差 延伸公差带及其表示法
Application Summary AI generated
GB/T 17773-1999 specifies the definition, representation, and application of projected tolerance zones for orientation and location tolerances in technical drawings. It is primarily used in mechanical engineering and manufacturing industries to control the positional accuracy of features like threaded holes or pins, where the actual tolerance zone extends beyond the part surface to account for assembly variations. This standard ensures consistent interpretation and application of projected tolerance zones in design, production, and quality inspection processes.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.