GD&T

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Geometric Dimensioning and Tolerancing (GD&T)

SEMINAR GOALS

  • Understand the requirements of GD&T, reduce leadtime of design, reduce the engineering change, improve the design quality
  • Learn how to apply GD&T to understand the design purpose of the customer and improve the reliability of product and process design
  • Emphasize the understanding principles of verifying GD&T
  • Learn the concept of MMC, LMC and RFS
  • Use GD&T to improve the dimension verification and inspection, understand the ASME Y14.5M requirements, such as geometric tolerance, symbols, terms, rules and application
  • Understand the differences between GD&T requirements of North America (ASME Y14.5M) and Chinese standards of Dimensioning and Tolerances (GB/T1182 and ISO 1101)

 

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Geometric Dimensioning & Tolerancing (GD&T) – Blueprint Reading

 SEMINAR GOALS 

• Understand the basic blueprint format and symbols.
• Learn to read basic blueprints.
• Learn to apply the basic GD&T tolerance to the blueprint.
• Learn to use the basic mechanical print for production, purchasing or marketing purposes.

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 Geometric Dimensioning & Tolerance (GD&T) – Tolerance Stack-up Analysis

SEMINAR GOALS

  • Calculate minimum and maximum wall thickness, airspaces and interferences for assemblies.
  • Create loop analysis/circuit diagrams for tolerance stack-up analysis for both plus/minus toleranced dimensions and geometric tolerances.
  • Create both simple and complex number charts for stack-up analysis using a variety of geometric tolerances, basic dimensions, resultant conditions, virtual conditions and plus/minus toleranced dimensions.
  • Conduct tolerance stack-up analysis for floating fastener situations for clearance holes, screws and shafts.
  • Conduct tolerance stack-up analysis for fixed fastener situations using screws, clearance holes, slots, tabs, overall dimensions and projected tolerance zones for threaded holes.
  • Calculate minimum and maximum gaps for assemblies that use a variety of datum structures.
  • Learn a system of logic and mathematics to analyze tolerances.
  • Calculate the effects of angular stack-up using trigonometry and proportions.
  • Calculate statistical tolerances using a variety of methods and learn how to re-integrate these tolerances back into the assembly’s details. 
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All OMNEX open courses are delivered in english language

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