Paul Horn GmbH, Tübingen, Germany, has developed DDHM, its CVD diamond-tipped tool system for cost-effective drilling and countersinking operations in solid carbides and sintered ceramics with a hardness of up to 3,000 HV. With the launch of this drilling system, the company says it is further expanding its range of products for machining fully sintered carbides. With new geometries for producing precise core holes, the tool system allows machining to take place on conventional milling or turning centers. Cost-intensive and time-consuming grinding processes are no longer needed, according Horn, and expensive new machinery can potentially be avoided by taking advantage of the DDHM tool system.
The DDHM system is aimed primarily at customers in the tool and die-making industries. The focus is on machining carbide punches and dies efficiently. The tool system also offers significant advantages in other areas such as the medical and aerospace sectors, the automotive industry, and punching, forging and forming technology, according to the company. Horn added that the diamond tools enable shorter throughput times, high surface quality, lower overall costs, greater flexibility within the production process and longer tool life.
The drills can be used for producing holes in solid material to a maximum depth of ten times diameter. The CVD-D tipped drills have a two-edged design and are available in diameters ranging from 2 mm (0.079”) to 10 mm (0.394”). All versions have internal channels for cooling with air.
Horn USA is based in Franklin, Tenn.