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Cutting Tools/Titanium Milling
October 2008 |

Sandvik Coromant has launched the CoroMill 690, a long edge cutter for titanium milling. Designed specifically for the aerospace segment, the program is aimed at machining structural components found in airframes, wings, fuselages and landing gear. The amount of titanium in high strength complex components is increasing and with this anticipated demand there is a critical need for improving machining efficiency.

CoroMill 690 is a high productivity cutter, with four edged inserts for economic 2D profile operations and optimized chip flutes to reduce chip jamming. Every insert pocket has a threaded coolant hole to accommodate a nozzle for high pressure coolant delivery to optimize chip evacuation. The chip evacuation is critical when face and shoulder milling in cavities, pockets and full slotting applications.

First choice applications include circular interpolation from a pre-drilled hole; edging and contouring and repeated square shoulder milling. The iLock rigid interface keeps the inserts rigid for accurate milling. Axial support prevents insert breakages on the bottom row and chip jamming on the second row.

The long edge cutter is designed for use with the Coromant Capto modular tool holding system for stability and shank clearance, essential when machining with long overhangs. The cutter is available in diameters of 50 to 100 mm, with two insert styles and closer pitch on large diameters for profiling.

The cutting inserts come in grades GC1030 or GC2040 in SL geometry, optimized for edging in titanium.

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