Downcutting | Dinosaur National Monument is known for, of ... - downcutting
High speed CuttingMachine
High speedmilling machine
F style chipbreakers direct chips backward and out of the hole * Use a right-handed style insert with a right-handed boring bar
High speedmachining speeds and feeds
Unique boring bar design greatly improves rigidity combined with chipbreakers that control the direction of the chip evacuation during the boring operation.
Competitor's tool life was not stable due to chip packing. NTK's mogul bar and insert with FG chipbreaker evacuated the chip from the hole resulting in a 2.1 x increase in tool life.
High speedmachining PDF
The competitor's boring bar experienced a heavy amount of vibration occurred due to extended overhang. NTK's boring bar eliminated vibration issues and insert with F1 chipbreaker achieved 1.8 x more tool life.