This Document Has Been Superseded
A newer publication replaces it: BSI BS EN 12420
Tolerances for hot brass stampings
TOLERANCES FOR HOT BRASS STAMP
Standard of accuracy refers to the defined levels of precision required for manufacturing processes, ensuring that components meet specified dimensional and quality criteria.
Groups of tolerances categorize permissible variations in dimensions, typically divided based on manufacturing methods and functional requirements to maintain consistency and interchangeability.
Machining allowances are extra material added to a workpiece to accommodate subsequent machining operations, ensuring the final dimensions meet the strict tolerances.
Endorsements of drawings involve official approvals or revisions made to technical drawings, which are documented to maintain traceability and accuracy throughout production.
Note on table of tolerances: These tables provide standardized data for acceptable limits of variation in dimensions, serving as a reference to maintain uniformity and quality in manufacturing.
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