This SAE Standard is concerned with the geometrical irregularities of surfaces of solid materials. It established definite classifications for various degrees of roughness and waviness and for several varieties of lay. It also provides a set of symbols for use on drawings and in specifications, reports, and the like. The ranges for roughness and waviness are divided into a number of steps, and the general types of lay are established by type characteristics.
This standard does not define what degrees of surface roughness and waviness or what type of lay are suitable for any specific purpose. It does not specify the means by which any degree of such irregularities may be obtained or produced. Neither is it concerned with the other surface qualities such as luster, appearance, color, corrosion resistance, wear resistance, hardness, microstructure, and absorption characteristics, any of which may be governing considerations in specific applications.
Sufaces, in general, are very complex in character. Although the height, width, length, shape, and direction of surface irregularities may all be of practical importance in specific applications, this standard deals only with their height, width, and direction.
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The Surface Enhancement Committee is primarily engaged in standard practices for shot peening and similar metal treatments to abate fatigue failure. The committee webpage is meant to be a repository for Surface Enhancement Committee on-going work and news. It is meant mainly for active committee members quick reference, but all others are also welcome to look and comment (you are welcome to attend meetings also). The materials presented here are NOT SAE official documents, and are only meant as working documents, with the usual working document errors. The material should not be used for any other purposes except Surface Enhancement Committee work. Participants in the SAE Surface Enhancement Committee include OEMs, suppliers, consulting firms, government and other interested parties.
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