As published by The Chartered Engineer in “Location and Clamping Systems in Fixture Design,” precise positioning and secure clamping directly affect manufacturing consistency and finished-part quality. The 3-2-1 locating method uses points across three planes to restrict unwanted workpiece movement.
Clamps should be positioned to resist machining forces while avoiding distortion or springing. Designers must consider force direction, workpiece tolerances, bearing points, heat, existing locating features, and the amount of force needed to hold the part safely throughout production.
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Article with all rights reserved, courtesy of The Chartered Engineer — https://stuartjbateman.com