The latest 25 mm GL double-edged insert is available in a variety of widths from 2 to 6 mm. Targeting long-grooving applications, GL supports 60% deeper capacity over Dormer Pramet’s LCMF16 insert.
A PVD grade, G8330, has been introduced for the GL insert to provide a versatile and stable option when machining steel, stainless steel and cast iron. The insert is also supported by two newly developed geometries. PR is the first choice for medium-to-high feeds in a variety of machining conditions. The insert’s cutting-edge strength resists cracking when grooving interrupted cuts, and is suitable for parting-off bars. PM geometry is an option for low-to-medium feeds on soft materials, like austenitic stainless steel, as it offers greater resistance to built-up edge and reduces the burr left when parting-off tubes.
A newly introduced range of external tool holders is available with shank dimensions from 16 to 25 mm. The design of the tool holders supports stable cutting and resists vibration, promoting high-quality surface finish.
Designed for small-part machining, the tools feature a 30° angled screw position for easier indexing, and a brace to increase toughness.
In addition, a line of universal tool blades, offering heights between 26 and 32 mm, is now available. The blades features a double-sided clamping key and a new design which enables inserts to be replaced with one hand.
Meanwhile, Dormer Pramet has launched a grooving system, including an insert (X61) and tool holder (P61) for light machining, specifically the external and internal turning of lock rings and sealing rings. Widely used in the bearings and automotive industry, lock rings – also known as circlips – and sealing rings require highly durable and accurate tools due to the small dimensions involved.
The latest insert offers deeper grooves, with widths up to 1.85 mm, and is available in both single and doubled-edge designs. A positive geometry is employed to reduce cutting forces and the temperature generated, meaning less power and stress on the workpiece, tool and machine.
Available in the newly developed G8330 grade, the X61 includes a negative T-land to improve cutting-edge strength and reliability, making it suitable for the smooth machining of steel, stainless steel and cast iron.
Dormer Pramet’s latest tool holders are included as part of the launch to support internal and external grooving. Designated P61, the range offers a productive solution for finishing operations on small workpieces, says the company.
