Quality Performance Associates         QPA
                                                                   Quality Training and Consulting                                

 

GD&T
Geometric Dimensioning and Tolerancing

 Universal Language

GD&T uses symbols and shapes to tell us what the designer wants. The symbols have the same meaning everywhere. Therefore, it is a universal language.

GD&T Feature Control Frame 

GD&T = Lower Cost

Geometric Dimensioning and Tolerancing properly applied can reduce production
costs and speedup inspections. Reducing the number of vague notes on a print makes it easier and quicker to read.

GD&T allows the maximum tolerance for many features of product. This reduces the potential for scrap and that lowers the cost of production.

Datums

Datums tell us where dimensions and tolerances originate. There should be no guessing as to where to begin measuring a feature on a part. Datums provide the reference for setup and inspection.

Datums are one of the most important features of GD&T. They provide you with a method of location and position that is simply not available with convential dimensioning.

Bonus Tolerance

Two material conditions apply to certain types of features that allow production bonus tolerances. These material conditions are maximum material condition and least material condition. The bonus tolerance doesn’t affect the dimensional tolerances. It applies to the size of the tolerance zone only.

This bonus can provide easier setups and less scrap. These bonus tolerance is available only from using GD&T for certain type of product features.

Enroll in one of our seminars or have an in-plant class and learn how tolerances can be increased and retain fit, form and function.

What Features Can Have GD&T Tolerances?

Features of form, location and orientation can have GD&T tolerances. Features such as thickness cannot.

Learn what features can have GD&T tolerances. Learn the rules and applications for datums. Discover what features need datums and how many datums.

You can have this class presented at your business for as little a $53.00 per person. Travel expenses not included.

Class is one day.

The Course Includes:

·        Introduction and overview

·        Preliminary examples

·        Review of GD&T symbols

·        Feature symbols except position

·        Maximum material condition

·        Least material condition

·        Regardless of feature size

·        Position

·        Orientation

·        Workshops

·        CEU and RU credits awarded

 Additional Resources

 

 

Solution Graphics


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