Fundamentals of Geometric Dimensioning & Tolerancing (GD&T) Web Seminar RePlay

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Geometric dimensioning and tolerancing (GD&T) is used as a symbolic way of showing specific tolerances on drawings. GD&T is a valuable tool that effectively communicates the design intent to manufacturing and inspection. It is governed by the technical standard ASME Y14.5-2018 (recently revised from the 2009 edition). This course introduces participants to the GD&T system, providing a working knowledge of the correct interpretation and application of each symbol, general rules, the datum system, and \’bonus\‘ tolerance and highlighting some of the changes in the updated Y14.5 standard – – most notably, the deletion of concentricity and symmetry. The material is reinforced with many practice exercises.

Objectives

By participating in this course, you\’ll be able to:

• Explain the benefits of geometric tolerancing
• Identify datum features and determine their order of precedence
• Identify and interpret each of the characteristic symbols
• Describe the material condition modifiers and how „bonus“ tolerance occurs
• Correctly interpret GD&T feature control frames, and explain the impact on manufacturing and inspection

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