Optimized cutting parameters can only be achieved with stable machines, workpieces and clamping arrangements. To this end, Walter AG from Tübingen offers high performance milling cutters from its succesful Walter Xtra•tec® programme which further optimizes the cost efficiency of machining workpieces.
The combination of the Tiger•tec® Silver cutting tool materials along with the Xtra•tec® tooling systems forms a nearly perfect basis for economical machining at Peak Productivity on all kinds of materials & components.
The highest dimensional accuracy, best possible surface finish quality and increases in productivity of up to 100% can be achieved using a combination of milling cutters, highperformance drills and threading tools from the competence brands Walter, Walter Titex and Walter Prototyp. This is also a way to achieve competitive cost per part in the mass production of complex components.
The Walter Xtra•tec® high performance mills are of prime importance in this regard. Equipped with the powerful Tiger•tec® Silver indexable inserts, they are perfectly suited for roughing to finishing applications. Their hard-nickel plated surface provides protection from corrosion and wear and ensures improved chip evacuation.
Different versions for different types of machining
The Xtra•tec® F4033, with a diameter range between 40mm to 200mm, is supplied in two different pitches. A narrow pitch enables it to be used with maximum productivity on transfer lines with short projection lengths. The medium pitch is suitable for weaker machines or unstable clamping conditions in different machining centres. In conditions of limited stability, this variant with medium pitch offers the highest possible cutting rates. One indexable insert size is suitable for the complete range of diameters.
The positive geometry of the cutting edges creates a soft cutting action. The insert clamping system with inclined screw fixes the inserts securely in their seats. The unique four-point contact surfaces of the indexable insert ensures free chip flow, and this leads to a high metal removal rate, even on low-performance machines.
Three insert geometries (F25, F57 & F67) – stable, universal and easycutting – enable adaptation to a range of different tasks. These tool properties guarantee stability and process reliability when machining. Above average cutting rates and tool life are guaranteed not least by the cutting
tool material from the Tiger•tec® range.
Reduced machining times
Another member of the Xtra•tec® milling cutter family, the Walter Xtra•tec® high performance milling cutter, F4041 with its four-edged indexable inserts is setting high standards in optimizing highperformance milling solutions. The distinguishing features of this Xtra•tec® shoulder milling cutter
F4041 are its high positive rake and rhombic 90-degree indexable inserts which are made of the high-performance cutting tool material Tiger•tec® Silver, WKP35S and WKP35S grade. Its double-sided indexable inserts with negative basic shape are extremely stable and ensure the highest cutting data and tool life, because they combine the properties of easy-cutting geometry with higher stability.
Moreover, a high rake angle ensures a high positive overall geometry and, therefore, also guarantees the features typical of the Xtra•tec® range, such as a soft-cutting action and reduced machine power. In combination with the stable design of tool body, the tendency towards vibration is reduced to a minimum. This improves the tool’s process reliability, even where long projection lengths are involved. The innovative tool is available in a diameter range of 40-160mm and cutting depths up to 13mm. Because of its special properties, the Xtra•tec® F4041 is particularly well suited to machining steel, stainless steel, cast iron, non-ferous metals and materials with difficult cutting properties.
The Xtra•tec® milling cutters can be fitted with the high-performance cutting tool material Tiger•tec® Silver WKP25S and WKP35S or with the PVD Tiger•tec® grade WKK25 for especially difficult machining conditions. Tool life up to 75% higher may be achieved than with comparable tools available in the market.