One basic principle in reviewing a casting design is Geometric Dimensioning & Tolerancing (GD&T). This system defines and communicates engineering tolerances through symbolic language on engineering drawings. It explicitly describes the part geometry and allowable variations. Using GD&T helps the customer’s design engineer, the supplier’s manufacturing engineer, and quality inspectors to reach consensus on a…

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Lawton Castings Measure Up

One of the basic principles used in reviewing a casting design is Geometric Dimensioning & Tolerancing (GD&T). This is a system for defining and communicating engineering tolerances through the use a symbolic language on engineering drawings. It explicitly describes the part geometry and its allowable variations. Using GD&T is one of the best ways for…

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