scope:

General

This Standard covers definitions of terms and features unique to casting and forging technologies with recommendations for their uniform description and inclusion on engineering drawings and related documents. Unless otherwise specified, any reference to features, parts or processes shall be interpreted as applying to both castings and forgings. Castings and forgings are delineated as casting/forging throughout the Standard.

Units. The International System of Units (SI) is used in this Standard because SI units are expected to supersede United States (U.S.) customary units. Customary units could equally well be used without prejudice to the principles established.

Reference to This Standard. Where drawings are based on this Standard, this fact shall be noted on the drawings or in a document referenced on the drawings. References to this Standard shall state "ASME Y14.8-1996."

Figures. The Figures in this Standard are intended only as illustrations to aid the user in understanding the principles and methods of drawing described in the text. The absence of a Figure illustrating the desired application is neither reason to assume in applicability nor basis for drawing rejection. In some instances, Figures show added detail for emphasis; in other instances, Figures are incomplete by intent. Numerical values of dimensions and tolerances are illustrative only.

Notes. Notes herein in capital letters are intended to appear on drawings. Notes in lower case are explanatory only and are not intended to appear.

Dimensioning and Tolerancing. The methods of dimensioning and tolerancing shall be in accordance with ASME Y14.5M and this Standard.