Cylindrical drilling tool, has cambers in different shapes and placed at rear sides that increase under different angles to chip groove, where cambers support folding and defined rolling of chips

摘要

The tool has chip guiding molds (3) running parallel, inclined, wave-shape or as cluster of individual recesses in different distances to a cutting edge (1). Four sides (4) of the molds have an angle to a chip groove surface that is adapted to requirements of a material to be cut and a process. The molds are produced in different depths, and have different lengths and shapes in an axial direction. Cambers in different shapes are placed at rear sides (5) that increase under different angles to a chip groove (2), where the cambers support folding and defined rolling of chips.