다양한 직경에 적용 가능함-스모캄은 동일한 바디에 드릴 헤드를 다양하게 사용할 수 있습니다. 이는 동일한 탭 가공 중 드릴 헤드를 교체하는 분들에게 크나큰 장점입니다. 동일한 DCNT 드릴로 ISO "M"(코스 피치 나사), ISO "MF"(파인 피치 나사)가공이 가능합니다.
첨부된 표를 통해 다양한 조합을 참조 하실 수 있습니다.
DCNT (M8-M24)Indexable Head Drills with Chamfering Inserts Mainly for Pre-Thread Holes
• Hole tolerance: D+0.05 in average conditions. However, it can be higher or lower according to machine and tooling conditions • Do not mount smaller drillingheads other than the specified range of the drill body.
(1) Used for standard thread size (2) Pre-thread hole diameter (3) Cutting diameter minimum (4) Cutting diameter maximum (5) Seat size code
AOMT-Chamfering Chamfering Inserts
• The cutting speed is dependent on the drilling insert being used. (1) For low carbon steel
1. Drilling pre-thread blindholes: Drilling with a 45° chamfer
1. Drilling pre-thread throughholes: Drilling with a 45° chamfer
Pre-Thread Recommended Hole Diameters with DCNT Drills
Material Groups
• When using external coolant supply only, reduce cutting speed by 10%. • Use internal coolant supply when machining austenitic stainless steel. • When using more than 5XD drill ratio, reduce cutting parameters by 10%.
Material Groups
█ Recommended cutting data (1) For workpiece materials list, see pages G6-41. As a starting value, the middle of the recommended machining range should be used. Then, (according to wear results), conditions can be changed in order to optimize performance. The data referse to IC908.
