What is common zone?

3. Common Zone — Adds the Common Zone modifier, CZ, to the tolerance zone for geometrical tolerances applied to multiple surfaces to indicate that the geometrical tolerance establishes a common tolerance zone applied simultaneously for the indicated surfaces.

What does CF mean in machining?

Definition of serial, parallel and simultaneous machining (cf.

How is parallelism measured in GD?

Secure the target in place on the surface plate. Move the target or height gauge straight forward to perform measurement. The difference between the largest measured value (highest height) and the smallest measured value (lowest height) is the parallelism value.

What does U mean in GD?

unequally disposed profile
“U” stands for “unequally disposed profile.” This specifies the range of run-out of the offset amount from the tolerance zone (tolerance zone limit) in terms of the profile tolerance of a plane. “UZ” is used for annotation according to the ISO standards.

What does CF stand for on a blueprint?

House plan abbreviations

What is the meaning of MMC?

MMC

What is parallelism measurement?

Parallelism is a measurement of whether two surfaces of an object are parallel to each other, or whether two lines are parallel. Parallel simply means that the distances between the two surfaces or two lines are constant. If the surfaces or lines were to extend theoretically to infinity, they would never converge.

What is the definition of a parallelism zone?

Parallelism is the condition of a surface or center plane, equidistant at all points from a datum plane; or an axis,equidistant along its length from one or more datum planes or a datum axis. Tolerance Zone Shape: A parallelism tolerance may specify:

When do you control the parallelism of a surface?

When controlling a surface, the parallelism control(f) defines how much a surface may deviate from being parallel to an identified datum(a perfectly flat plane). Parallelism Control:Perfect parallelismoccurs when a surface is exactly parallel to a datum. Parallelism is an orientationcontrol.

Which is the best example of parallelism in English?

Common Examples of Parallelism. Many common phrases feature parallelism through repetition of words, structure, or other grammatical elements. This calls attention to the wording and can emphasize the phrase’s meaning. Here are some common examples of parallelism: he that will cheat at play, will cheat you any way.

What is the definition of GD & T parallelism?

GD Parallelism. Definition: Parallelism is the condition of a surface or center plane, equidistant at all points from a datum plane; or an axis,equidistant along its length from one or more datum planes or a datum axis. (ASME Y14.5M-1994, 6.6.3)