High-value machining efficiency

The trend in the automotive industry in Asia is toward higher performance with smaller cubic capacity; and less consumption brings with it a larger mechanical load on the engine block. This requires high-quality materials made of grey cast iron (GG) and compacted graphite iron (GGV).

Maximum cutting rates can only be achieved with stable machines, workpieces and clamping arrangements. To this end, Walter AG from Tübingen supplies the two face milling cutter which has been added to the successful Walter Xtra ? tec? programme and further increases the cost efficiency of machining workpieces.

The interaction of the Tiger ? tec? Silver cutting tool materials and the Xtra ? tec? tooling systems form a nearly perfect basis for economical machining of these materials.

The highest dimensional accuracy, best possible surface finish quality and increases in productivity of up to 100% can be achieved today using a combination of milling cutters, high-performance drills and threading tools from the competence brands Walter, Walter Titex and Walter Prototyp. This is also a way to achieve competitive piece costs in the mass production of complex components. The Walter Xtra ? tec? heptagon cutter F4045 is of major importance in this regard. Equipped with the powerful Tiger ? tec? Silver indexable inserts with 14 cutting edges, it is perfectly suited for roughing combustion chamber surfaces. The standard range includes two insert sizes and tools with diameters ranging from 63- 200mm. Its hard-nickel plated surface provides protection from corrosion and wear and ensures improved chip evacuation.

Two versions for different types of machining

The Xtra ? tec? F4045 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.

The seven-edged (heptagon) and stable indexable inserts of the Xtra ? tec? F4045 offers a total of 14 cutters due to its negative basic shape, and this reduces the cutting material costs and increases process stability. The positive geometry of the cutting edges creates a soft cutting action. The deep-seated contact surfaces of the indexable insert ensures free chip flow, and this leads to a high metal removal rate, even on low-performance machines.

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