CNC collet chucks were originally developed to facilitate the machining of smaller parts. Although collet chucks are available with capacities of as large as about 6 inches, the majority of applications are for workpiece diameters measuring 3 inches or less. In fact, the benefits achieved by using a collet chuck on parts in this size range are so significant, many lathe manufacturers and machine tool distributors now allow customers to purchase their machines with a collet chuck already installed as the standard workholding 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 enables machining to take place 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 at higher speeds than conventional three-jaw chucks. Being comparatively lighter in weight, collet chucks are less prone to the negative 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