New Horn cartridge grooves on small workpieces

German tooling manufacturer Paul Horn has launched the 842 cartridge system for grooving and parting off smaller workpieces.

The 842 cartridges form part of the 940 modular grooving system, which comprises a basic holder, a grooving tool holder and a cartridge. The key advantages for users lie in the flexible component combinations. The grooving tool holders – which are available in different lengths according to the type of machine and application – are connected to the basic holder.

Specially designed for use on lathes with smaller work areas, the cartridge can be screwed from both sides. The type S100 cutting edge is available with different widths, geometries and coatings to suit the machining task concerned. The screw clamping device of the cutting edge makes it easy to perform tool changes with a high level of repeat accuracy.

The grooving tool features an internal coolant supply with support cooling provided from below and clamping finger cooling provided from above. As a result, the coolant jet acts directly on the cutting edge, thereby ensuring optimum work results.

In combination with the S100 cutting insert range, type 842 provides a cost-effective solution for parting off free-cutting, high-strength and stainless steels.

The cartridge eliminates the need for an additional face turning operation to be performed on the part-off surface, Horn says. Grooving depths are Tmax = 22 mm (0.8661 in) and Tmax = 34 mm (1.3386 in).