Inserts

The WKK25G grade is a true specialist when milling today’s cast irons (ISO K material group), such as ductile cast iron. Specifically, the grade is ideal for unfavorable milling conditions, such as interrupted cuts, and for wet machining applications. The grade meets the most stringent requirements for process reliability, particularly in the automotive industry, and is suitable for highly abrasive workpiece materials.

The peripherally ground insert offers improved wall accuracy and straightness and creates a true 90° corner. The LNEX12 also featuring a patented U-groove segment on all four cutting edges which provide a good surface finish and expand its application range to low-power machines and small depths of cut. In addition, the two-sided design supports performance by making ramping possible.

Ideal for holemaking without a pilot drill up to 10×Dc, the inserts provide time savings that boost productivity. The inserts were designed to achieve maximum tool life in stable machining conditions thanks to the wear resistant WPP25 grade with HIPIMS technology. The grade has a particularly hard and robust substrate to extend tool life.

The latest Pramet range includes three variants of a 16-edged ONMX insert for depths of cut up to 0.157” (4mm). The standard geometries include the F for light operations, M for versatile use, and R for rough cuts in a variety of materials. Additionally, the 8-edged ONMX-W is a specific wiper insert for high-quality surface finish with large cutters and high feed rate.

Horn has revised the clamping of the S224 type indexable insert for use in Swiss-type lathes. In order not to have to remove the holder for indexing or changing the insert, the Horn engineers relocated the clamping screw to the side. Clamping now takes place via a camshaft. This allows the insert to be clamped quickly at either side of the holder without having to remove it.

The new grade is Walter’s response to the upwards trend towards milling steel with difficult machining properties and wear-resistant stainless steel, such as found in applications in the energy and aviation industries. WSM35G meets the most stringent requirement for process reliability, which is highly valued in the automotive sector, and is also suitable for general mechanical engineering applications.

TCB now offers AH6225 grade inserts. This latest physical vapor deposition (PVD) coated grade features a high-hardness titanium-rich PVD coating, combined with a tough dedicated carbide substrate. Extremely reliable and versatile insert grade, AH6225 allows TCB to efficiently cut bores in all material groups, including steel, stainless steel, and exotic materials.    

Providing exceptional reliability and increased tool life in steel, the new AH3225 insert grade consists of a unique nano-multilayer coating featuring three distinctive characteristics for improved resistance to built-up edge, wear, and delamination, combined with a dedicated tough carbide substrate. AH8015 is another PVD grade, consisting of extremely hard PVD coating combined with a tough carbide substrate. The grade demonstrates excellent tool life stability in cast iron and heat-resistant superalloys.

The curved wiper cutting edge is a unique feature that makes the wiper action universal across various material groups such as steels, stainless steels, cast irons or even super alloys. The wiper action can be used to reduce machining time by using double the feed rate, while imparting the same surface finish. In some cases, feed rate increases of up to 300% were successfully utilized.