Internal and Face Grooving Tools for Small Hole Diameters

Sandvik Coromant has launched CoroCut QI, a range of internal and face grooving inserts designed for smaller diameters. Optimized to enable a lighter cutting action and reduced cutting forces, CoroCut QI is said to ensure high-process security, reliable grooving operations and precise chip evacuation, resulting in high surface quality grooves.

The addition of CoroCut QI completes the CoroCut Q platform, Sandvik Coromant says, which already consists of CoroCut QD for parting off and CoroCut QF for secure face grooving. CoroCut QI provides a comprehensive selection of optimized tools for numerous parting and grooving applications, designed specifically for smaller diameters. All inserts fit both internal and face grooving toolholders.

CoroCut QI is divided into internal grooving and face grooving application areas, and is an upgrade of the T-max Q-Cut 151.3 program. The improved design allows for greater chip control, a 10% productivity increase, 20% improved tool life aided by tighter edge-rounding tolerances and internal coolant for both internal and face grooving tools.

Key features of the CoroCut QI include an optimized tip seat angle for lighter cutting action and cutting forces that aid vibration-free machining, a rail insert seat for a stable and precise insert position ensuring minimal insert movement. In addition, screw-clamped tool holders ensure stability and high-process security, and inserts with high edge line quality increase tool life and surface quality. The company adds that most CoroCut QI tools have internal coolant channels that deliver coolant directly to the cutting zone to enable efficient chip evacuation with minimum damage to the surface.

The minimum hole diameter for internal grooving with CoroCut QI inserts is between 12 and 60 mm, with a cutting depth of 2 and 11 mm. Face grooving inserts can be used in a first-cut diameter between 16 and 102 mm, with a cutting depth of 5.5 to 20 mm.

The insert geometries include -GF, a ground sharp insert for internal grooving; -TF with direct pressed geometry for face grooving and internal grooving and turning; and -RM, ideal for non-linear turning such as internal and face profiling.