John Hagan

John Hagan is corporate applications engineer with Norton|Saint-Gobain Abrasives. (Bio last updated 2016-11-01 Contact Randy Stott, Managing Editor, with changes.)

Articles by John Hagan

  • The Role of Natural Frequencies in Grinding Systems Vibration (November/December 2016)
    Excessive machine tool vibration during a precision grinding operation can result in poor workpiece quality in the form of chatter, rough finishes, burn, etc. One possible reason for excessive vibration is directly associated with the relationship between natural frequencies of a machine tool system and the operating speed of the grinding wheel spindle.