ISCAR’s New Chip Splitter Geometry

Drilling is considered one of the most difficult machining operations. The inability to see what is inside the hole during the drilling process makes it quite difficult to predict malfunction. This becomes more of a concern in deep drilling operations where the diameter-to-length ratio is 15 times greater. The increased depth only magnifies problems which may have occurred in shallow depth drilling.

Watch: ISCAR TechTalk Drilling Chip Splitter

Chip Evacuation is Problematic

One of the most critical problems in drilling, and a major factor limiting speed during the drilling process, is the evacuation of chips. It’s necessary to have an internal cooling supply with efficient flow rate and pressure to enable good chip evacuation and a suitable cooling process. Correct chip form and size will ensure a stable drilling process. ISCAR has developed new chip splitter geometry for two deep drilling lines.

• Tri-Deep: Tri-Deep is a new gun drill with deep drilling heads carrying inserts with three edges.
• TOGT: TOGT inserts feature three chip-splitting cutting edges, a positive rake chip breaker, and a wiper for high hole surface quality. The chip splitter produces narrow chips for efficient chip evacuation, enabling high feed rates, reducing cutting forces and machine power compared to other drills available in the market.
• SUMOGUN + ICG chip splitter: The SUMOGUN features two straight flutes carrying standard SUMOCHAM ICG drilling heads. This geometry should be regarded as a general machining option. It can solve chip evacuation problems in deep drilling operations. The revolutionary design of chip splitting notches on the ICG heads makes it possible to achieve small, short-segment chips, facilitating the chip evacuation process. The new ICG geometry provides productivity and process reliability when deep drilling on titanium, aluminum and steel alloys on standard milling and lathe machines. The SUMOCAM ICG drilling heads are fully effective, which enables drilling at much higher table feed rates when compared to most other gun drills available on the market.
• The drill’s features and innovative pocket design: The connection between the pocket and tube is made by a new welding process for high torque resistance.

To learn more, watch the video “ISCAR TechTalk Drilling Chip Splitter”