The PKD end mills of the series DM20 – DM33 are versatile all-rounders and are suitable for a variety of applications with their respective technical specifications.
The DM20
The two-flute PKD-coated milling tools with center cutting cover almost the entire range of machining operations and are universally suitable for non-ferrous metals as well as non-metallic materials such as technical plastics. The series is complemented by a specially adapted body design for dry or wet machining. Different PKD substrates and modern, tailored technologies for cutting edge preparation ensure productive machining processes as well as reliably high performance and tool life. With a semi-standard, Horn additionally offers the quick and flexible option of customization to specific customer requirements.
The DM25
The product line DM25 with cutting edge lengths between 8 mm and 18 mm is specifically designed for contour and finishing milling operations of external and internal contours when high feed rates are required. The multi-flute design significantly reduces machining times. While the R-series with internal cooling is preferably used for non-ferrous metals, the C-series with an additionally positive cutting angle is suitable for machining abrasive materials up to graphite and fiber-reinforced plastics.
The DM27
Modern composite materials are lighter, more stable, and stronger – thus they are becoming increasingly important for industrial applications. When machining these abrasive materials, the quality of the component edges is paramount. Burrs, delaminations, or chipping therefore create a demanding requirement profile for tool geometry and cutting material to address these component-specific and wear-relevant conditions. The risk of vibration on thin-walled materials or edge trimming of sheet materials, considering pulling or pushing cuts, presents an additional requirement for stable milling processes. With a positive-negative cutting arrangement, combined with internal cooling and center cutting, the tools of the DM27 series offer a tailored overall package for universal milling applications.
The DM30
The milling tools of the DM30 series are specifically designed for components with large cutting heights. The PKD-coated end mills in spiral design impress with their soft and peeling cut. The segmented design reduces cutting forces and machining noise. The precise position and arrangement of the PKD cutting edges ensure high surface quality and burr-free milling results. The tools are suitable for peripheral, edge, or circular milling operations and can be used for small to medium depth of cut as well as for finishing operations while maximizing the use of the cutting edge length. The high cutting edge quality ensures burr-free cutting edges.
The DM33
Components made of high-strength and forged aluminum are demanding in their machining and place high demands on the tool. Unlike classic aluminum die casting, extruded and forged aluminum, due to the lack of silicon content and a compressed material structure, causes long chip formation. In addition, there are built-up edges and above-average tool wear. Horn offers a tailored milling concept with the DM33 series. Whether for face milling or ramping: the tools are also designed to create holes or pockets in full cut without pre-machining under helical entry with high feed values. Holes, breakthroughs, pockets, or profiles can be produced reliably and economically in diameters from 12 mm to 16 mm as well as 20 mm. The tools are designed with central cooling and provide reliable chip removal even in deep machining. For larger holes, additional larger screw diameters are available in the DG-V series in connection with differently long basic holder dimensions.
This extensive selection and expansion of the Horn portfolio in the field of high-hard cutting materials offers users the opportunity to obtain the process-safe tool solution suitable for their machining task. The focus is on cost-effectiveness and productivity, combined with Horn technology, high flexibility, and reliability.
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