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Horn Blog

High chip volume with high-feed milling

December 2020
10
Author: paulhorn
Company: Hartmetall-Werkzeugfabrik Paul Horn GmbH
High chip volume with high-feed milling

Paul Horn GmbH is pleased to present a new development for high-feed milling. The DAH82 and DAH84 systems from Horn represent a new generation of products for this milling process. The precision-sintered insert has eight usable cutting edges, resulting in a low cost per edge and a high level of cost-effectiveness. Despite the negative mounting position, the positive cutting geometry ensures a smooth and soft cut combined with good chip removal. Horn offers the inserts in the substrate SA4B, which is suitable for universal use in various materials. The large radius on the main cutting edge of the indexable insert results in a soft cut, ensures even distribution of the cutting forces and, in turn, extends the tool life. The maximum cutting depths supported are ap = 1.0 mm (0.039") (DAH82) and ap = 1.5 mm (0.059") (DAH84).

The DAH82 variant is available as an end mill and screw-in milling cutter in the following diameters: 20 mm (0.787") (z = 2), 25 mm (0.984") (z = 3), 32 mm (1.260") (z = 4), 35 mm (1.378") (z = 4) and 40 mm (1.575") (z = 5). As an arbour milling cutter, it is available in diameters of 40 mm (1.575") (z = 5), 42 mm (1.654") (z = 5) and 50 mm (1.969") (z = 6). For diameters in excess of 50 mm (1.969"), the larger DAH84 indexable insert is used. This can be supplied as an arbour milling cutter in the following standard diameters: 50 mm (1.969") (z = 4), 52 mm (2.047") (z = 4), 63 mm (2.480") (z = 5), 66 mm (2.598") (z = 5), 80 mm (3.150") (z = 6), 85 mm (3.346") (z = 6), 100 mm (3.937") (z = 7) and 125 mm (4.921") (z = 8). All tool bodies receive a special surface treatment, which results in high strength and hardness, thereby providing long-term protection against abrasive wear from chips.

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