Consider the two part specifications above Describe and illu

Consider the two part specifications above. Describe and illustrate the interpretation of each specification. Explain which tolerance is more restrictive and justify your answer.

Solution

For the first figure which in the left the circle denotes circularity that is the circle has the circularity of 0.05.Circularity represnts how close an object is to true circle.It is a 2 dimensional tolerance.

For the second figure which is in the right with circle with two tangent lines on both sides denotes cylindricity that this figure has the cylindricity of 0.005.Cylindricity describes how close an object conforms to a true cylinder.Cylindricity is a 3 dimensional tolerance.

Cylindricity is more restrictive than circularity beacause cylindricity controls the overall form of a cylindrical feature to ensure that it is round enough and straight enough along the axis.