What is a profile of a surface?

Description: Profile of a surface describes a 3-Dimensional tolerance zone around a surface, usually which is an advanced curve or shape. Profile controls all the points along the surface within a tolerance range that directly mimics the designed profile.

How do I find profiles on my surface?

When pressed against a roughened steel surface, the foam collapses and forms an impression of the surface. Placing the compressed tape between the anvils of a micrometric thickness gage and subtracting the contribution of the incompressible substrate, 2 mils, gives a measure of the surface profile.

What does surface profile tolerance mean?

In GD, profile tolerance defines a uniform boundary around a surface within which the elements of the surface must lie. Profile is a complex tolerance that simultaneously controls a feature’s form, size, orientation, and sometimes location. The top figure shows the profile tolerance applied to a curved surface.

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 difference between profile of line and profile of surface?

In other words, while profile of a line looks only at a specific cross section, profile of a surface looks at how measurements vary from one cross section to the next.

What is the difference between profile of a line and profile of a surface?

Does surface profile need a datum?

Is profile tolerance bilateral?

Profile Tolerances The profile tolerance that is positioned around the nominal surface can be unilateral, equal-bilateral, or unequal bilateral. In the above picture, the profile tolerance is equally, bilaterally distributed around the nominal surface.

Does a profile tolerance need datums?

What can a profile control be applied to?

It can be used to control the size, location, orientation, and form of a part feature. Profile of a surface or line can be used to tolerance planar surfaces, cylinders, cones, curves, and irregular curves.

How do you measure profile of a surface?

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.

What is the definition of a profile of a surface?

Profile of a surface describes a 3-Dimensional tolerance zone around a surface, usually which is an advanced curve or shape. If it is called out on a curved surface, like a fillet on a welded part, the entire surface where the radius is has to fall within the tolerance zone.

What is the definition of surface profile?

Definition of surface profile. the contour of the surface in a plane perpendicular to the surface, unless some other angle is specified.

What is surface profile measurement?

Surface profile is defined as a measurement of the maximum peak-to-valley depth generated by abrasive blast cleaning and impact-type power tools.