GB/T 21947-2008
ActiveNumerically milling machines for special screws - Testing of the accuracy
数控异型螺杆铣床 精度检验
Application Summary AI generated
This standard specifies the geometric and positioning accuracy testing methods for numerically controlled milling machines used to produce special-shaped screws. It is applied in the manufacturing industry for the acceptance and periodic verification of these specialized machine tools, ensuring they meet required precision levels for producing components like extruder screws or injection molding screws. The standard provides specific test procedures and tolerance values for evaluating machine performance during production setup or quality inspections.
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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.