Parker, by all accounts, worked in a munitions facility in Great Britain. The origin of GD&T has been credited to a man named Stanley Parker, who in 1938 developed the concept of position or “true position” as it is referred to today.
The standard used in the United States for defining GD&T methodology is ASME Y14.5-2009. The GD&T methodology is currently used in Automotive, Heavy Equipment, Aviation and several other industries. The result is an improvement in communication and part quality. Geometric Dimensioning and Tolerancing (GD&T) is a precise language of engineering symbols that clearly communicate the design intent of the part. It is imperative that the design intent and functionality of the part be clearly communicated between the design engineer and the manufacturing plant. The need for accuracy in part design and manufacture is greater now than ever before.
To reduce cost many component parts are currently being sourced from suppliers all over the world.
In manufacturing, quality is paramount, costs must be controlled and the processes must minimize waste and use resources wisely. Introduction to Geometric Dimensioning & Tolerancing (GD&T)
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