The bearing manufacturer would like to reduce the cycle time. The present time consumption for machining for drilling and interpolar milling amounts to 26 seconds.
HEULE designed a customized tool based on the VEX-S technology for this application. Together with the SNAP chamfering blade and the indexable inserts for the countersinking this tool combines all three machining steps to on single operation.
The following machining parameters enable the combination tool to achieve a cycle time of under 16 seconds:
Drilling: Speed 3500 rev/min., Feed 0.2 mm/rev.
Countersinking: Speed 2000 rev/min., Speed 0.12 mm/rev.
Deburring backwards: Speed 2000 rev/min., Feed 0.12 mm/rev.
Reducing the cycle time by approx. 10 seconds (= less 38%) resulted in an overall reduction of the machining time of 20'000 hours.