CNC collet chucks were initially developed to facilitate the machining of smaller parts. Although collet chucks are available with capacities of as large as about 6 inches, most most applications are for workpiece diameters measuring 3 inches or less. The benefits of using a collet chuck on parts in this size range are so significant that many lathe manufacturers and machine tool distributors now allow customers to purchase their machines with a collet chuck installed as the standard work-holding device. CNC machining part
The most obvious advantage when machining parts in the 0 to 3-inch range is the additional tool clearance provided by a collet chuck’s streamlined shape and reduced nose diameter. This arrangement makes machining much closer to the chuck, providing maximum rigidity and better surface finishes. In contrast, the large diameter of a three-jaw chuck and its jaws typically requires the part being machined to extend further into the work zone, thereby increasing the likelihood of deflection. CNC machined part
Higher RPM
Collet chucks also lend themselves to small-diameter work because their lower mass and symmetrical geometries enable them to run faster than conventional three-jaw chucks. Being comparatively lighter, collet chucks are less prone to the adverse effects of centrifugal force and, therefore, tend to produce more consistent gripping force over the entire rpm range. auto part
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Post time: Mar-27-2020