What is profile in GD?

The profile of a surface specification defines a 3-dimensional tolerance zone equidistant from the theoretically exact shape or curve (i.e. the “True Profile”) to control all the points along the surface to be within a tolerance range.

Is profile tolerance Plus or minus?

Size of the opening is given by the basic dimensions, but size tolerance is provided by the Profile of a Surface constraint. Form is also controlled by this tolerance, as each point must be within the tolerance zone, which is plus or minus 0.0025” from the basic dimension.

How do you measure profile?

Gauging / Measurement: Profile is usually measured using a CMM due to the complexity of some of the surfaces that are called out. The CMM would compare the 3D scan of the profile to the dimensions called out on the drawing to see if it was in spec.

How many type of profile tolerances are there?

There are two types of profile tolerances.

How is GD profile calculated?

Profile is usually measured using a CMM due to the complexity of some of the surfaces that are called out. The CMM would compare the 3D scan of the profile to the dimensions called out on the drawing to see if it was in spec.

How is profile measured?

Does profile need a datum?

Profile can control, form, location, orientation, and size or any subset of these. Profile can be used with or without datum references and with or without basic dimensions.

What is a profile drawing?

Profile drawing means a scaled graph or plot that represents the side view of an object. Objects may include a surface water body or a portion of it, a man-made channel, an above-ground structure, a below-ground structure, a geographical feature, or the ground surface itself.

What is H7 k6?

H7/k6. K7/h6. Fixed fit. Negligible clearance or small interference fit which can be assembled or disassembled with light pressing force, e.g., plugs, driven bushes, armatures on shafts.