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The company says its new line of productivity tools eliminate secondary operations, slashing floor-to-floor cycle and machine change-over times. The Urma IntraMax modular boring system offers rough and finish boring of large, deep holes in a single pass. The system also includes the fluid-driven Axis right angle heads and key cutter that are said to allow operators to machine in tight spaces and cut keyways on the machining center without moving to a secondary milling or broaching operation.
The boring system provides an interlocking combination of adapters, extensions and boring heads, which allow users to assemble the appropriate boring tool for various applications. By varying the size of diameter extenders, the same roughing and boring heads can be used for inside boring diameters from 1.9" to 14" on either a 40- or 50-taper spindle. The system can also be used to turn outside diameters from 0.35" to 9.8." While adaptable with either the original Alpha modul threaded connection or the "quick change" Beta modul connection to the toolholder adapters, it works with most machining centers.
The single pass roughing/finish operation is achieved by offsetting the roughing head from the finishing diameter and then lowering the finishing insert to allow the rougher to lead. The system is then able to rough and finish bore a part to finished size in a single operation. According to the company, a 0.0002" increment diameter adjustment for finish boring assures accuracy while serrated tool components secure the connection for torque transmission. The company added that its system allows double-cutter finishing without producing retraction lines on the finish bore surface. Because it is designed with both cutting edges above (or below) the centerline, the tool can be removed from the bore without scratching the finished bore wall.
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The KBDM polycrystalline diamond (PCD) face milling system from Kennametal is designed for high-volume machining, with standard sizes ranging from 2.5" to 8.0" (63 to 200 mm) and cutter diameters ranging to 21.5" (550 mm).