General Sheet Metal Tolerances

Fabrication tolerances for dimensional variance in sheet metal and machined parts overview protocase takes great care to manufacture your electronic enclosures parts and components as accurately as possible.

General sheet metal tolerances.

During the rolling process the rollers bow slightly which results in the sheets being thinner on the edges. General tolerances for linear and angular dimensions din iso 2768 t1. For sheet metal parts iso 2768 mk is used. And for machined components iso 27 68 fh can be used.

Tolerance class is defined as per design requirements and manufacturing capability. Variations on dimensions without tolerance values are according to din iso 2768 mk. General tolerance iso 2768 does not specify where to use these tolerances. General tolerance iso 2768 does not specify where to use these tolerances.

General tolerances to din iso 2768 the latest din standard sheet version applies to all parts made to din standards. The tolerances in the table and attachments reflect current manufacturing practices and commercial standards and are not representative of the manufacturer s standard gauge which has no inherent tolerances. As per design requirements and manufacturing capability tolerance class is defined. 1989 general tolerances part 2.

For sheet metal parts iso 27 68 mk is used. In the above example m and k has defined the tolerance class. Uncontrolled dimensions contain two different categories of tolerances.