Indexable Inserts, Toolholders Perform Heavy-Duty, Wide Profile Grooving

Heavy-duty grooving and wide-profile grooving is achieved through Tungaloy NTK’s TungHeavyGroove grooving inserts and toolholders. An enhanced insert clamping design provides optimal tool rigidity. TungHeavyGroove’s operations may be implemented for venting grooving in injection molds, the company notes, though it depends on the geometry of the venting that is needed — in particular, venting channels for round components is possible using TungHeavyGroove.

The indexable grooving tool line is developed for efficient, heavy-duty grooving and wide profile grooving applications, offering inserts in widths of 10, 15, 20 and 25 mm.

Sher-CHP toolholders incorporate features that enhance the tool’s reliability. Their thick, strong structure is able to support the insert underneath its cutting edge, contrary to conventional toolholders, which offer no support directly under the cutting edge. This provides the insert with extra security in sustaining heavy cutting loads during machining.

Offering multiple contact faces, the toolholders’ reinforced design is said to maximize contact with the machine turret or tool post, resulting in higher stability and rigidity compared to conventional toolholders. Moreover, TungHeavyGroove uses a frontal coolant system, delivering high-pressure cutting fluid from the bottom to the flank face of the cutting edge, enhancing chip evacuation and extending insert tool life. A rigid dovetail insert clamping method sustains heavy cutting loads during aggressive wide grooving and profile grooving, while providing process security.   

Ten inserts are introduced in total, including two geometries. HGM grooving inserts incorporate a pressed-in chip former and are available in AH8015 or T9215 grades optimized for high-speed machining of steel. HBL inserts are available as blanks so that users can tailor them into customer-specific groove forms of up to 6.6 mm depth of cut. HBL is made from a TH10 uncoated carbide grade.

Sixteen new square shank toolholders are introduced in both metric and imperial sizes with shank heights and widths of 25 × 25, 32 × 32 and 40 × 40 mm for metric sizes and 1″ × 1″, 1 ¼″ × 1 ¼″ and 1 ½″ × 1 ½″ for imperial sizes.