The key to the creation of these chipbreakers, says the company, is its use of additive manufacturing, which makes it possible to construct highly intricate features with optimised, curved cooling channels.
Although the chip space on a conventional drilling tool is open to the side and the front, the new chipbreaker on every cutting edge covers the groove frontally and radially. That leaves only a narrow gap of a few tenths of a millimetre between the chipbreaker and the cutting edge of the tool, through which any chips produced can run off. With the new design, a chipbreaker channel guides them reliably out of the drill hole. Initial experience in production has shown that the cost of monitoring chips remaining in components has reduced considerably.
