11/11/2022 0 Comments True position to one datum![]() GD&T and the Quality EngineerĪs a Quality Engineer you will be expected to be able to read and interpret Engineering drawings and the GD&T associated with that drawing. These symbols have been able to replace the traditional handwritten notes and ensure a standard approach to dimensioning and tolerancing that is friendly to the manufacturing & inspection world. To do all of this, GD&T utilizes a set of standard symbols to describe the different features or requirements of a component. Today, the GD&T methodology provides a robust method to communicate all of necessary information associated with a component which include dimensions, tolerances, geometry, materials, finish and all other pieces of information about a drawing (revision, part number, etc). The GD&T methodology was created to standardize the “language” of engineering drawings, so that no matter who you where, or where you were in the world, you could read a drawing and understand exactly what is required for that component. These handwritten notes became a source of error as organizations began scaling up or when those notes needed to be translated to other languages. To ensure that your engineering drawings are communicated effectively (error-free), drawing creators (designers) use a technical “communication language” called GD&T or Geometric Dimensioning & Tolerancing.īefore the development of GD&T, traditional engineering drawings often contained many handwritten notes to capture the designers intent. This includes process designers, component buyers, component suppliers, raw material inspectors, assemblers, post-assembly QC inspectors & lastly the customers themselves. ![]() The next benefit or purpose of the engineering drawing is to act as a communication tool.Īs a Quality Engineer you’re likely aware that there are many different people within the manufacturing process who will need information about the new components or assemblies that have been designed. ![]() One of the most important is to capture the intention of the designer and all of the requirements associated with the newly designed product. ![]() These Engineering or Technical Drawings serve a number of different purposes. In the last chapter ( Design Inputs & Reviews), we covered the three phases of product design which often result in the creation of detailed engineering drawings associated with your new product. ![]()
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