Turning line gets into the groove

As part of its AddForce global launch of next-generation cutting tools, Tungaloy is introducing AddInternalCut to its product portfolio. The company reports that the new AddInternalCut is an industry first, introducing four cutting edges on an internal grooving tool for precision turning and small part machining applications.

The R&D experts at Tungaloy have developed a clamping system that incorporates into the tool body to provide high levels of clamping rigidity, indexing repeatability and precision. AddInternalCut supports the four-edged insert in three positions, with each of the cutting edges protected by the new pocket design. Furthermore, this design allows end users to deploy the same insert on a right- or left-hand tool body.

Tungaloy’s AddInternalCut is available with a steel or carbide tool body featuring a necked relief of 24 or 30 mm to provide sufficient clearance and swarf evacuation. The round tool shanks also have 12 mm flats to correspond with everything from sliding-head turning centres to larger, more robust lathes, while the through-coolant tool bodies reduce vibration and chatter with an overall tool length of 100 or 125 mm, and an insert seat size of 10.

To ensure the new AddInternalCut is suitable for the widest possible number of applications, Tungaloy has developed the range with its CWN and CWX insert designations. The CWN is 1.5 mm wide with the heavier duty CWX being 2.5 mm wide. Depending upon the chosen insert geometry, AddInternalCut provides a protrusion for cutting at depths up to 2 mm. Both geometries are available in Tungaloy’s AH725 insert grade, which features a PVD coating to suit a wide variety of steels, stainless steels and challenging alloys, such as titanium. The tool is suitable for machining inside holes from 10.5 mm diameter upward.

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