Geometric Dimensioning & Tolerancing (GD&T)

INTRODUCTION

Geometric dimensioning and tolerancing (GD&T) is a language used on mechanical engineering drawings composed of symbols that are used to efficiently and accurately communicate geometry requirements for associated features on components and assemblies. GD&T is, and has been, successfully used for many years in the automotive, aerospace, electronic and the commercial design and manufacturing industries.

Success oriented industries and organizations which, require accurate and common lines of communications between engineering, design, manufacturing and quality should consider geometric dimensioning and tolerancing (GD&T) as their mechanical drawing standard.

 

COURSE OBJECTIVES

At the conclusion of this 2 days program, participants will be able to:

  • Gain knowledge on what GD&T is all about
  • Explain the benefits of geometric tolerancing
  • Learn how to apply GD&T in their job
  • Able to interpret customers requirements from the design drawing
  • Understand the problems in manufacturability
  • Be reminded of the Do’s & Don’t’s of proper tolerancing
  • Able to set quality control criteria from design drawing
  • 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

 

INTENDED AUDIENCE

  • This 2 days workshop has been designed for Engineers, Supervisors, Technicians, Inspection & Measurement Technicians and Production staff who are involved in design, measurement and production of mechanical parts.
  • This course is designed for personnel whose work requires them to communicate, interpret or manufacture products through the use of engineering drawings and/or CAD models.
  • Also those communicating constantly with customers for new parts/molds manufacturing.
  • Participants should have an understanding of basic blueprint reading.
Geometric Dimensioning and Tolerancing (GD&T)

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