THE DTM SYSTEM - by Horn Cutting Tools

Sunday, May 19, 2019

Tool system for productive aluminium machining


HORN is expanding its DTM lightweight milling system to include two new versions. The new DTM.CX09 arbour milling cutters are designed as roughing tools. In machining applications that involve high cutting depths and place less stringent demands on surface quality, they represent a cost-effective alternative to the new finishing versions of this tool. The DTM.CX09.AL.F face milling cutter for finishing adds an adjustable body to the existing product range. The axial runout can be adjusted to the exact μm using a pre-setter. The insert adjustment system is designed to be user-friendly.

The aluminium body of the tool holders has a low mass, resulting in reduced energy consumption during acceleration and deceleration. The fact that it has a lower mass than the steel milling cutter makes for faster acceleration and deceleration, enabling highly dynamic processes to be achieved as a result. In addition, the cutter body features a protective hard coating to prevent wear caused by chip impact. The inserts are available from stock in several diamond materials and a variety of geometries. This makes it possible to obtain a cost-effective alternative to soldered face milling systems. The chip shape geometries reduce the chip volume and increase process reliability.


THE ADJUSTMENT SYSTEM FOR THE DTM FINISHING FACE MILL ENABLES INSERT ADJUSTMENT TO THE EXACT μM. 


Looking at the cutter bodies in more depth, they are available as arbour milling cutters with cutting edge diameters of between 40 mm (1.574") and 125 mm (4.921"). The number of teeth ranges from four to eight effective cutting edges. All body versions feature an internal coolant supply. The system is used for high-speed milling up to a maximum cutting speed of vc = 5,000 m/min (16,404 ft/min).

The lightweight aluminium body of the tool system protects the spindle at high speeds. The diamond inserts are available as PCD and CVD-D. PCD grade PD75 is a useful all-rounder for aluminium machining applications. For alloys with a high silicon content, HORN recommends substrate PD70. The substrate HD08 (CVD-D) is used for highly abrasive materials. CVD-D consists of 99.9 percent diamond and offers maximum wear resistance. All material versions are available in a range of different geometries to suit the application.


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