Article From: 10/29/2009 Production Machining
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One way of combating runout inconsistency is to use the Iscar Shortin tooling system. This short holder is available for ER32 spring and shrink collets, providing maximum rigidity and improved cutting conditions. Among its advantages is the shortest possible overhang, yet it is suitable for both regular and shrink collets.
The short collets provide high gripping force, thereby reducing cutting vibrations and improving runout and repeatability. Each chuck is balanced to 2.5 g at 20,000 rpm and has a symmetrical design for high-speed machining. Alternatively, a balanceable collet chuck system should be employed for high speed machining. The company’s balanceable collet chuck system uses a simple balancing procedure on all types of balancing machines. Furthermore, the system provides a number of advantages including direct readings from its precision Balancin rings for excellent balance, with added features to compensate for unbalance up to 61 g per millimeter and provides both static and dynamic balancing, the company says.
