THE 620 CIRCULAR MILLING SYSTEM by Horn Cutting Tools

Wednesday, May 22, 2019

Expansion of the circular milling  system

The expansion of the circular milling range was initiated by one of HORN’s customers, who wanted a more stable version for high-feed milling and face milling. HORN responded to this request by creating the 620 system. The precise insert seat has increased in size. Together with the stable carbide shank, this means that the tool offers higher feed rates and a significantly longer tool life. Featuring six teeth and a cutting edge  diameter of 21.7 mm (0.854"), the face mill-ing version allows a maximum milling depth of tmax = 5.3 mm (0.209"). Meanwhile, the high-feed milling version, which has the same cutting edge diameter and the same number of teeth, supports a cutting depth of ap = 0.5 mm  (0.0197"). The low-vibration carbide shafts are available with a diameter of 20 mm  (0.787") and shank lengths of 150 mm  (5.906") and 95 mm (3.740").


HORN OFFERS THE 620 SYSTEM IN RESPONSE TO A DESIRE AMONG CUSTOMERS FOR A VER-SION OF THE CIRCULAR MILLING SYSTEM THAT CAN BE USED FOR HIGH-FEED APPLICATIONS.


The HORN circular milling system offers users a whole host of process advantages: it is fast, reliable and achieves good surface results. During the process, the tool plunges into the material either at an angle or horizontally, and is then driven on a helical path. This means that threads, for example, can be manufactured to a high level of reproducible quality. When compared to machining using indexable inserts on larger diameters or solid carbide milling cutters on smaller diameters, circular milling is generally more economical. Circular milling cutters have a wide range of applications: they are able to machine steel, special steels, titanium and special alloys. These precision tools are especially suited to groove milling, circular interpolation milling, thread milling, T-slot milling and profile milling processes. However, they also impress in special applications, such as milling sealing grooves or machining connecting rods.


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