Development of a Method to Obtain a Part Through the Application of GD&T and Reverse Engineering

This paper talk about to develop the methodology of the GD&T (Geometric Dimensioning and Tolerancing) philosophy in conjunction with rapid prototyping and Reverse Engi-neering technology, to achieve the improvement of product parts. Collaterally and in a complementary way, this article, show the necessary to develop measurement techniques by variables, focusing on measurement by coordinates, for the survey of pieces by Reverse Engineering and quality control in production, as well as the development of functional gauges as a method of control by attributes, using GD&T and rapid prototyping tools. All this applied to a piece to be designed. The research methodology used is a quantitative strategy, based on an experimental study. This decision was based on the need to identify and analyze the behavior of empirical data by taking measurements with a coordinate measuring machine to apply reverse engineer-ing to the part to be manufactured. To implement the proposed method, measurements were taken on a part similar an airbag control support base made of AA 7075 aluminum. Later, the part was drawn in a CAD system, applying GD&T to both dimensional and geometric dimensions of the part, thus obtaining the expected result.