CoroMill 172 indexable insert disc cutter offers single set-up opportunities

The main benefit of CoroMill 172 is that it allows single set-up machining: one machine for many operations; and one cutter body for different insert types. In addition, machining using ground carbide inserts can take place dry. Sandvik Coromant says CoroMill 172 is capable of achieving far higher speeds and feeds (and tool life) than comparable HSS cutters, so can be cost effective for small-to-medium batches of internal and external gears and splines, as well as racks and pinions. It can be used to generate straight flank or involute profiles. Typical starting recommendations for cutting data are 140-200 m/min cutting speed and 0.12-0.20 mm feed. Available in diameters from 63 to 254 mm, the cutter is suitable for gear modules 4-8, and modules 4-9 when producing splines. Cutter bodies are custom made as the design will depend on the shape of the insert. Both right-hand and left-hand tools can be ordered – cutter bodies can even be designed to hold a range of inserts with different profiles for mixed production of geared components. The GC1030 grade inserts are also custom-made according to the gear profile specified by the customer: inserts can have protuberance, tip chamfer, tip relief and addendum modification as required. The Sandvik Coromant iLock interface, which sits between the cutting insert and tool body, provides high machining security and precision. Used in combination with the latest wedge clamping technology, says the company, it also gives highest levels of positional repeatability. CoroMill 172 is suitable for use on all ISO P (steel) classification materials found in all industry sectors.