CNC shot peening machine for rock drill bits

By admin August 18, 2011 12:00 pm IST

Rock Drills Bits areas are affected with heavy loading during rock drilling. The repeated Torsion Loads reduces the life of Rock Drill Bits. To enhance the fatigue life of Rock Drill Bits shot peening is carried out on internal bores & external surfaces.
Rock Drill Bits for shot peening mounted on Indexing Turn Table get shot peened by external blast nozzles or lance nozzles for internal shot peening. Nozzles mounted on mechanical reciprocation systems complete the pre-programmed operation. The shot peening media get re-cycled through size & shape classifier for maintaining the spherical ness of the shots being used for peening. The butterfly valves have been provided for intermittent transfer of unclassified shots from shot size classifier to shot shape classifier.
The bits are mounted between the pneumatically operated centers on individual satellites for positive locking and operator’s ease.

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