Aug 28, 2009 - Quote: We have a print with 'measurements without tolerance, specification according to DIN 6930 m'. I cannot find this standard. TMA Standard Tolerances Page: 9/17 4 Standard Tolerances for Stamping As per DIN 6930 Class m 4.1 General Tolerances on Length Nominal size range Accuracy grade Thickness ≥ 0.1 and ≤ 1 > 1 and ≤ 3 > 3 and ≤ 6 > 6 and ≤ 10 >10 ≥ 1 and ≤ 6 fine (f) ± 0.05 ± 0.08 ± 0.1 ± 0.2 ± 0.4.

This standard is intended to simplify drawings. It specifies general tolerances on linear and angular dimensions, and on coaxiality and symmetry with four tolerance classes as follows: f (fine), m (medium), g (coarse) and sg (very coarse).

By selecting a specific tolerance class, the customary workshop accuracy is taken into consideration. Generals contra 007 torrent. General tolerances as specified in this standard are used for cold or hot stampings made from flat steel products, and apply wherever reference is made to this standard in drawings or other relevant documents (e.g. Delivery conditions).

General tolerances for parts made by fine blanking (see VDI 2906 Part 5) are not covered by this standard. If, as an exception, this standard is also applied to parts made from semi-finished products other than flat products, or from materials other than steel, this shall be agreed separately. This standard is to be applied in conjunction with DIN 6932 on design rules for stamped steel parts. Technical delivery conditions for stampings are specified in DIN 6930-1.

Guidelines for general tolerances indicated on existing drawings are given in Clause 5.

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