DIAMOND TOOLING FOR MACHINING HARD MATERIALS

ooling manufacturer HORN has introduced a CVD (chemical vapour deposition) diamond-tipped tool system, DDHM, for cost-effective drilling and countersinking of sintered carbides and ceramics of hardness up to 3,000 HV. It enables short throughput times, high surface quality, lower costs and more flexibility within the production process as well as long tool life.

As they allow machining to take place on conventional milling and turning centres, the tools do away with costly and time-consuming grinding and eroding processes. There is also an opportunity for savings in capital plant, as investment in expensive new machinery can potentially be avoided.

Due to its ability to machine carbide punches and dies efficiently, the DDHM system is particularly well suited to manufacturers in the tool and die making sector. However, the tool also offers advantages in other areas, including the medical, aerospace and automotive industries as well as in punching, forging and forming technology.

The CVD-D-tipped drills can be used for producing holes in solid material to a maximum depth of ten times the diameter. They are of two-edged design and are available in diameters ranging from 2 mm to 10 mm. All versions feature an internal coolant supply.

For chamfering and countersinking, Horn offers the CVD-D end mill from stock with diameters of 3 mm and 6 mm and with flank angles of 15, 30 and 45 degrees. The 3 mm version has five teeth while the 6 mm version has six.