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System and prescribing tolerances according to ČSN, EN and ISO with focus on accuracy of dimensions and geometry
JANOVÁ, Jana
This work focuses on the ways of controlling the size and shape of inaccuracies, which are set by the standards. The historical background in the development of the technical standards in our country is also mentioned. Furthermore, the introductory chapter draws the attention to the problems of written interpretation of the dimensional and formative accuracy as referred to EN and ISO standards. The following part of this paper explains the symbols and basic terminology, types of tolerances and their entries on the drawings. Next chapter concentrates on the correct interpretation of the drawings and theirs written description. The collection of figurative pictures is also attached. Finally, at the end of this work the surface roughness is also discussed.

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