Geometric Dimensioning & Tolerancing (GD&T) / Metrology
Geometric Dimensioning and Tolerancing (GD&T) and metrology specify and verify the physical accuracy of battery components — cell can dimensions, electrode flatness, busbar hole positions, pack enclosure features. As a hard skill it requires reading GD&T drawings per ASME Y14.5, programming coordinate measuring machines, and interpreting datum reference frames. Quality engineers apply these techniques to qualify supplier parts, set acceptance criteria for incoming cells, and isolate process drift that causes module-stack misalignment.
