摘要:
The invention relates to a rotary cutting tool (10), in particular a milling tool, boring tool or a reamer, with a metallic base tool body (12) with at least one preferably helical flute (16, 18), preferably with a pair of flutes, wherein a cutting element (24, 26) of an ultra-hard cutting material such as polycrystalline diamond (PKD) or polycrystalline, cubic boron nitride (PCBN) for forming a helically running cutting edge (28) is associated with the at least one flute and is connected such as soldered to the base tool body (12; 42; 70; 94). In order to increase the service life and simplify the manufacture, it is provided that the cutting element (24, 26) is constructed as a one-part diamond body (24, 26) or from several diamond segments in the form of a section of a solid body that is/are received in a receptacle (20, 22) constructed along the flute (16, 18), wherein the helically curved cutting edge is constructed in the diamond body or the diamond segments in a material-removing manner.
摘要:
The invention pertains to a cutting tool for material-removing machining of materials, comprising a shaft (12) with a tool head (16) having a cutting blade (70). For the effective cooling of the tool blades, the shaft (12) has a single coolant supply channel (26) running in the longitudinal direction of the shaft and a single coolant return channel (28) running in the longitudinal direction and the tool head (16) has a single flow channel (78) connecting the coolant supply channel (26) to the coolant return channel (28) which is thermally coupled to the tool blades (70).
摘要:
The invention pertains to a tool layout (10) for making boreholes (12) in materials (14) such as fiber composite materials, comprising a cutting tool (16) with a drill shaft (20) having a suction channel (18) and with a drill head (26) having at least one tool blade (22, 24), wherein the drill head (26) has a larger diameter DBK than the drill shaft (20) in order to form an intermediate space (28) between drill shaft (20) and the wall of the borehole, and a suction device (30) coupled to the suction channel (18) of the drill shaft (20) to suction away the shavings removed through at least one suction opening (32, 33) of the drill head (26) coordinated with the at least one cutting blade (22, 24) into the suction channel (18). To improve the suctioning of the shavings and/or the cooling of the tool and work piece, an outer wall (64) of the drill head (26) has at least one recess (64, 66) extending for the entire length of the drill head (26) and emerging into the at least one suction opening (32, 33) as a crossover channel by which a connection is produced between the intermediate space (28) bounding the drill shaft and the suction opening (32, 33).