Geometric Dimensioning & Tolerancing
(การกำหนดขนาดและความคลาดเคลื่อนทางเรขาคณิต)
Definition
Geometric Dimensioning & Tolerancing (การกำหนดขนาดและความคลาดเคลื่อนทางเรขาคณิต) Hard Skill
Geometric Dimensioning & Tolerancing (GD&T) is a system for defining engineering tolerances and specifying the shape, orientation, and location of features on a mechanical part to ensure proper function and interchangeability.
Expertise Level
Level 1
Basic
1. Understands basic GD&T symbols and their meanings.
2. Can read simple engineering drawings with GD&T annotations.
3. Recognizes common tolerances and their applications.
Level 2
Intermediate
1. Can apply GD&T principles to interpret complex drawings.
2. Understands functional relationships between geometric controls.
3. Able to evaluate part features against specified GD&T requirements.
Level 3
Advanced
1. Can create and specify GD&T standards for complex mechanical designs.
2. Expert in analyzing and resolving tolerance stack-up and assembly issues.
3. Capable of training others and leading GD&T implementation in projects.
