JB/T 3047-2011Modular tapping machine tools - Testing of the accuracy (English PDF)

JB/T 3047-2011 is the English-translated version of 攻丝组合机床 精度检验.

JB/T 3047-2011 is a recommended Chinese machinery industry standard that deals with the accuracy of modular tapping machine tools. It sets the requirements for the geometric accuracy of the machine and prescribes the test methods used to establish whether those requirements are met. Machines of the ordinary accuracy grade are what the standard is written for. The classification codes recorded for it are J58 in the Chinese scheme and 25.080.99 in the international scheme. It quotes GB/T 17421.1-1998, and it replaces the earlier edition JB/T 3047-1999.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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