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Level 2
GD&T – Intermediate Principles
Course Outline
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Course Objective
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To provide a foundational understanding (interpretation) of mechanical drawings using linear tolerancing and GD&T in the design, manufacture and inspection of parts, which have geometric controls applied per ANSI / ASME or other national standards.
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| Course Length |
2 Days (16-hours) |
| Course Content |
Introduction to Theory and Rules |
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- Rule 1 on features of size
- Rules 2 & 3 on material condition principles (MMC, LMC & RFS)
- Comparison of changes between standards
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Linear Transformation to GD&T |
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- Implications of +/- tolerancing
- Conversion of square zone to diametral
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Datums, Datum Features & Datum Simulators |
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- Datum precedence
- Planar datum features
- Datum features of size
- Inclined datums
- Partial datum features
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Overview of 14 Geometric Symbols |
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- Analysis of symbols and definitions
- Analysis of tolerance zones
- Actual mating envelope
- Supporting symbology
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Single-Segment & Composite Feature Control Frames |
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- Single segment feature control frames
- Composite feature control frames
- 2D analysis of single segment feature control frames
- Virtual condition principles
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Analysis of Measurement Applications |
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- Negative implications of specific measurement procedures
- Analysis of data from case studies and formula calculations
- Position calculation exercises and review of general guidelines
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Global Simplification of GD&T |
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- GD&T boundary comparisons
- Reduction of symbology (14 symbols down to 3 symbols)
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| Targeted Audience |
Any individual who must have the ability to “interpret” mechanical drawings using linear tolerancing and GD&T. Any manager with direct or indirect responsibility for product development, manufacturing, quality, customer interaction or supply chain management. Engineers of all technical disciplines, mechanical designers & drafters, mechanical inspectors & technicians, metrologists, machine operators, tool makers and statisticians who analyze data from mechanical components. |
| Prerequisites |
"Introduction to Mechanical Drawings & GD&T" or equivalent knowledge. |
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The GD&T - Intermediate
Principles Course Outline is available in PDF format. |
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Training Transformation |
Business Transformation |
8-Tracks Program Overview |
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To read about the Training Transformation,
click here. |
To read about the Business Transformation,
click here. |
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Example Graphics from Course |
GD&T Boundary
Comparisons |
Global Simplification
of GD&T |
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Feature Control Frame |
Datum Precedence |
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Inclined Datum Features |
Implications of MMC,
LMC & RFS |
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Breakdown of Position Calculations |
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Note :
 Click
on any image to zoom in. |
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