Transcription of Workmanship Standards - web2 6-1-15 - Beaver …
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Workmanship Standards - web2 6-1-15 - Beaver …
Workmanship Standards . Dimensions and Tolerances Application and interpretation of dimensions and tolerances shall be in accordance with ASME Engineering Drawing Practices and ASME Dimensioning and Tolerancing Standard for procured items. Angles All angles, other than 90 angles, shall be specified on the drawing. Angles shown, as right angles shall be 90 within the general tolerance specified on the drawing except when squareness (perpendicularity) of a machined surface is a requirement. Flatness Machined Surfaces Machined surfaces shall be flat with the tolerances of the applicable linear dimensions of the drawing unless a specific flatness requirement is designated. Sheet Metal Surface Sheet metal surfaces shall-be free of wrinkles, sharply defined depressions or ridges, and shall be flat within the tolerances of the applicable dimensions of the drawing.
WORKMANSHIP STANDARDS A requirement for counterboring must be designated on the drawing. When required, the diameter and depth, or the diameter and material thickness below the counterbore
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