Sandvik Coromant inserts generate low cutting forces

The innovative new inserts feature eight edges, four on each side, and although they sit negatively in the cutter, a very high rake ensure positive, light cutting. This not only promotes excellent chip formation in stainless steel, but improves the working environment thanks to its soft machining sound. A wiper insert is also available where a brilliant surface finish is sought, while internal coolant is available for cutters up to 125 mm in diameter.

By way of testimony, outstanding results were achieved in a recent customer performance test. A pump body made from 316L stainless steel was subject to dry roughing operations on a horizontal machining centre. Using CoroMill 345, both cutting speed and feed speed could be increased against a competitor cutter. This helped deliver 50 per cent more components with 22 per cent higher metal removal rate, without wearing out the inserts. In fact, using the new inserts, three components per edge could be achieved, against just two using the competitor cutter.