Chatter has long been a problem in machining and grinding. With trends for higher precision and greatly reduced tolerance, solutions to chatter problems have become increasingly important. Though chatter is simply a consequence of vibration within a grinding system, finding causes for the vibration and developing corrective strategies can be difficult. Essentially there are two types of chatter-causing vibration: forced and self excited (regenerative). The former is vibration independent of the grinding wheel and workpiece with sources that range from spindle bearings to machine tools operating nearby. Regenerative vibration, a type of chatter first described by Robert Hahn, starts as a slip-slide interaction between wheel and workpiece. A recent paper presented by Inasaki at a CIRP meeting provides a fuller explanation of the many facets of chatter and suppression technology. The listing below show some of the resources available from AES. |
rev 6/8/2010
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