Category: fieldguide
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Precision Machining for High-Tolerance Parts: A Field Guide
Three months ago, I watched $47,000 worth of aerospace components fail final inspection. The CAD model was flawless. The machinist had twenty years of experience. The five-axis CNC was freshly calibrated. Yet every part missed tolerance by 8–12 microns on critical mating surfaces. The cause was simple and painful. The parts were machined at 3…