摘要:
The invention relates to a method for producing a hard metal body (9) by solidifying in layers in areas corresponding to the cross-section of the hard metal body (9) in the respective layer. Said method comprises the following steps: producing a three-dimensional hard metal body (9) in successive layers by alternatively applying layers of a hard metal powder (10) and selective, local solidification of the applied hard metal powder (10) under the effect of a targeted energy beam (6), wherein the hard metal powder (10) comprises particles (11) having a sintered-together tungsten carbide binding metal structure.
摘要:
The invention relates to a cutting insert (1) for the machining of workpieces, comprising a cutting edge (40) and an adjoining rake face (41), which are formed by an ultra-hard layer (4) made of diamond or cubic boron nitride. A chip-guiding groove (44) designed as a depression in the ultra-hard layer (4) is provided in the rake face (41). A chip-influencing element (5) made of a hard material is arranged on the side of the chip-guiding groove (44) furthest from the cutting edge (40) and protrudes above the surface of the ultra-hard layer (4). In a radial direction running from a cutting corner (42) to a centre (Z) of the cutting insert the chip-influencing element (5) is arranged spaced from the chip-guiding groove (44).
摘要:
The invention relates to a cutting insert (1) which is constituted of a plurality of coherent individual cutting inserts (2) which are disposed one after the other. Said insert can be used one after the other using an intermediary weakened point and detaching the preceding individual cutting insert (2) which was previously used for cutting. According to the invention, the cutting insert (1) is configured as a blade and has a lower (13) and an upper contact surface (14) to be received in an elongate recess (5) having a lower (15) and an upper mating surface (16) in the tool base (4) of a burring tool or disk milling cutter. Every individual cutting insert (2) is provided with a positioning means (3) which interacts with a complementary positioning means (9) of the tool base (4).
摘要:
A rotating tool (1) is produced for machining, which comprises: a base body (2) with a first end (21) to be connected to a receptacle of a machining machine and with a second end (22) that has a plurality of seats (3) for securing replaceable cutting inserts (4); a coolant channel (6) for supplying coolant and/or lubricant originating from the first end (21); a funnel-shaped recess (7), which proceeds from a front face of the base body (2), is disposed on the second end (22), increasingly tapers in the shape of a funnel with increasing distance from the second end (22) towards the first end (21), and issues into the coolant channel (6); and a cover (10), which frontally shuts the funnel-shaped recess (7), except for a plurality of coolant outlet regions (8) associated with the seats (3), and which has a projection (12) that protrudes into the funnel-shaped recess (7).
摘要:
The invention relates to a cutting insert (1) for a cutting tool. In a radial direction Q, which extends in a main plane H from the cutting corner (4) to a center Z of the cutting insert (1), the following are formed in the following sequence: a falling cutting surface (8), a chip guiding stage base (9; 9a, 9b, 9c) adjacent to the cutting surface, a first chip guiding stage (11), which is adjacent to the chip guiding stage base and has a first surface (11a) rising from the chip guiding stage base and a first plateau (11b) adjacent thereto, a second chip guiding stage (12), which has a second surface (12a) rising from the first plateau (11b) and a second plateau (12b) adjacent thereto, and a third chip guiding stage (13), which has a third surface (13a) rising from the second plateau (12b) and a third plateau (13b) adjacent thereto.
摘要:
The invention relates to a cutting tool (1), which comprises a main tool body (2) and at least one insert seat (3) disposed thereon, said seat having a bottom surface (5) for mounting a cutting insert (4), and further comprises a dowel pin (11), which penetrates a through-hole (10) of the mounted cutting insert (4) and the bottom surface (5) and can be fixed to the main tool body (2). A center longitudinal axis (17) of the fixed dowel pin (11) is arranged at an acute angle (W1) with respect to the bottom surface (5). The dowel pin (11) comprises a spherical segment for mounting on a bearing surface of the through-hole (10). The surface of the spherical segment is interrupted by a segment groove.
摘要:
The invention relates to a milling tool displaying a cutting geometry formed by a main cutter (3), a cutting edge (4) with an optional adjacent wiper edge section (5), and a secondary cutter (6) for milling surfaces as smooth and flat as possible parallel to the rotational axis of the milling tool (1). Each inventive main cutter (3) is configured in such a way that the generatrix (8) of the enveloping surface (9) created by rotating the milling tool (1) exhibits a first segment (11) with a projected length (17) of at least 1 mm relative to the rotational axis (7) adjacent to the sector (10) corresponding to the cutting edge (4).
摘要:
The invention relates to a cutting insert for machining, comprising a substantially cylindrical main body having an axis A. The cutting insert has a lateral flank face (1) and opposite rake faces (2, 2'), wherein cutting edges (3, 3') are formed at the intersection of said faces. The cutting edges (3, 3') each have at least two convexly curved sections (4, 4') in the direction of the axis A, which are connected to each other by concavely curved or substantially straight sections (5, 5').