Cutting data for machining is available in SSAB’s machining brochures.
It is possible to drill into very hard steel, like wear plates. For Hardox grades up to Hardox 500, you can drill single holes into a stationary drilling machine with high-speed steel drill/you can use a stationary drilling machine with a high-speed drill to drill single holes together with low cutting speed and a lot of cooling. For even harder steels, a solid carbide drill or a carbide tipped drill must be used.
Milling is a cutting process producing chips. Cutting inserts are rigidly mounted on a rotating tool (milling body). The milling body cutting edges can have various shapes. The workpiece is clamped onto a table. Both the table and the tool can be moved independently in one or more spatial dimensions. The movements can be controlled manually or by a computer program (CNC).
The machine must be stable, and the workpiece must be well clamped. Use only a milling body equipped with carbide inserts for wear plates harder than 400 HBW. Use cutting feed provided by the tool manufacturer. It is worth trying a gradual increase in cutting speed to save time. Start from a low cutting speed.
The information in this report is only applicable to SSAB’s products and should not be applied to any other products than original SSAB products.