Milling

The MA230 Advance solid carbide milling cutting is for universal machining of steel, stainless steel, cast iron and high-temperature superalloys (ISO P, M, K and S workpiece groups) at the highest level. The MA230 Advance cutter is for high-performance roughing and finishing and enables reliable milling with an extremely high metal removal rate. The MA321/MA320 Advance solid carbide milling cutters were also developed for machining ISO P, M, K and S workpieces.

The HM geometry has a highly negative and narrow T-land, as well as a positive rake to reduce vibration and enable a smoother cutting action. Together, these improve the durability and process security, prolonging tool life in the relevant materials by up to 50%, compared to the existing assortment.

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 metric VariMill Chip Splitters feature a design that actively controls chip size resulting in easier chip evacuation in deep cavities. The end mills include five- and seven-flute configurations from 8mm-20mm metric standard diameters. The five-flute tool maximizes performance in steel materials while the seven-flute tool excels in stainless steel and high-temperature alloys.

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.

It features friction reducing needle bearings and hardened jaw plates and vise bed. What makes the Palmgren line of Dual Force machine vises so unique that they are designed for precision part clamping as well as ideal for use in running production parts where datums, flatness and parallelism are key.

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.

The nine-edged milling systems M911, M913 and M928 are stocked in cutting widths from 1.5 mm (0.059") to 3 mm (0.118") as standard. The maximum milling depth is 3.5 mm (0.138") (M911), 4.5 mm (0.177") (M913) and 6.5 mm (0.256") (M928). The inserts are available with different coatings to suit the material to be machined. Due to its mass, the solid carbide tool shank ensures vibration damping during milling. All variants of the tool shanks are equipped with an internal coolant supply.

As with other tool systems, high-performance reaming systems are also subject to demanding requirements. In addition to high process reliability, long tool life and low tool costs, modern reaming tools must fulfil further criteria. These include, among other things, the modularity of the tools. While machining with an HSS reamer is partially limited in this respect, modern reaming systems can be improved by replaceable heads with carbide inserts, modular tool lengths and various adjustment options. These include, for example, µ-accurate adjustment of concentricity and runout. Precise concentricity of the reaming inserts is the path to success. In practice, this should be within 5 µm.

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.