TS 450
Technical Drawings-Tolerancing of Linear and Angular Dimensions
This standard covers the tolerancing of linear and angular dimensions related to the technical drawings.
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About This Item
TS 450 is a standard concerned with the tolerancing of linear and angular dimensions in technical drawings. It organizes the relationship between a nominal size and its permitted variation so that the dimensions shown on a drawing can be interpreted consistently in design, manufacturing, and inspection. In general technical terms, tolerancing is essential whenever a part cannot be made to an exact size, yet must still function correctly within an acceptable range.
Why linear and angular tolerances are distinguished
Linear tolerances apply to straight measurements such as length, thickness, diameter, or spacing, while angular tolerances apply to features defined by an angle, slope, or orientation. This distinction matters because the effect of variation is different for each kind of dimension. General engineering practice uses tolerances to balance manufacturing variability with interchangeability, assembly fit, and functional performance.
What this standard covers
According to the supplied scope, this standard covers the basis for tolerancing linear and angular dimensions on technical drawings. It is identified as equivalent to ISO 406:1987, indicating a harmonized approach to how such tolerances are presented on drawings. The practical value of this kind of document is to make dimensioning language more uniform across drafting, production, and quality control activities.
- Tolerance principles for linear dimensions
- Tolerance principles for angular dimensions
- Consistent interpretation of dimensions on technical drawings
- Clearer communication between design, manufacturing, and inspection
- Publication Date: 20.04.1993
- Standard Status: H (İptal Edilmiş Standard/Withdrawn standard)
- Publisher: TSE
- Document Language: tr
- ICS Classification: 17.040.10 Limitler ve Uyumlar; 01.100.01 Teknik Resim (Genel)
- Pages: 8
- Source Standard: ISO 406:1987
- International Equivalents: ISO 406 (1987)--; ISO 406:1987 EQV--
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