251results about "Milling cutting inserts" patented technology

A cutting insert has an upper surface, a lower surface and a lateral surface. The upper surface has a first upper side, and a second upper side. The lower surface has a first lower side and a second lower side. The lateral surface has a first lateral surface, a second lateral surface, and a third lateral surface. The first lateral surface has a first concave part having a first constraining surface having a flat shape. The second lateral surface has a second concave part having a second constraining surface having a flat shape. The third lateral surface has a convex part. The first concave part and the second concave part are separated from each other by the convex part.

Provided is a double-sided cutting insert for use in milling, the double-sided cutting insert comprising: a first major surface (2) and a second major surface (3); a peripheral surface (10) disposed between the major surfaces (2, 3) and including a first major side surface (11); a first main cutting edge (21) formed at an intersection between the first major side surface and the first major surface; a second main cutting edge (22) formed at an intersection between the first major side surface and the second major surface; first and second inclined side surfaces (31, 32) formed on the first major side surface (11) and inclined towards each other to form a depression (D1) on the first major side surface; and a chip deflector (50) formed on the first major side surface as a protrusion spanning the depression (D1) and including a chip deflection surface (51) configured to deflect chips impinging on the first major side surface away from the depression.

The invention relates to a cutting tool (1) with a mounting seat (3) with a bearing surface (4) and a seat surface (5) for receiving a cutting insert with a front surface (9) with at least one cutting edge (11) and an opposite rear surface (10) for bearing against the bearing surface, and a first mounting surface (12), which extends between said surfaces, for bearing against the seat surface, wherein a first recess (13) is formed in the first mounting surface; and an elevation (14) for positively locking engagement into the recess is formed on the mounting seat. The recess comprises a first end stop (15) and an opposite second end stop (16), and the elevation comprises a first end surface (17) and a second end surface (18) for bearing against the first end stop and the second end stop, wherein a length (19) of the recess between the end stops (15, 16) is greater than an extent (20) of the elevation (14) between the end surfaces (17, 18), with the result that the cutting insert (6) has a mechanical play (21) by means of the end stops (15, 16), with the result that the rear surface (10) can be pressed within the play (21) onto the bearing surface (4).

The cutting insert for use in high-feed milling is rotationally symmetrical by 180° about a central axis (C) and comprises: first and second main surfaces (2, 3); a median plane (MP) extending between the main surfaces perpendicular to the central axis; a first main cutting edge (31) and an associated first ramping cutting edge (51); and a second main cutting edge and an associated second ramping cutting edge. Each main cutting edge has a first end (31a) facing the associated ramping cutting edge and an opposite second end (31b). Each ramping cutting edge has a first end (51a) facing the associated main cutting edge and an opposite second end (51b). The cutting edges are inclined such that their second ends are located closer to the median plane (MP) than their first ends, and the second ends of the main cutting edges are located closer to the median plane than the second ends of the ramping edges.

A cutting insert includes: a rake face; a flank face; and a cutting edge constituted of a ridgeline between the rake face and the flank face. The cutting edge has a first cutting edge portion for corner processing, a second cutting edge portion for pulling processing, a third cutting edge portion for finished-surface processing, a first connection cutting edge portion, and a second connection cutting edge portion. The third cutting edge portion is disposed between the first cutting edge portion and the second cutting edge portion. The first cutting edge portion has a curved shape. A curvature radius of the first cutting edge portion is 0.1 mm or more and 2.4 mm or less. The second cutting edge portion has a straight line shape or a curved shape having a curvature radius of 3 mm or more.

A first outer region of an outer inclined surface of a cutting insert according to an embodiment has a width in a direction perpendicular to a first part of a first edge that decreases with increasing distance from a first corner. A second outer region of the outer inclined surface has a width in a direction perpendicular to a second part of the first edge that increases with increasing distance from a first corner.

The present disclosure relates to a cutting insert specifically designed for right-angle milling having a threefold rotational symmetry, along with a complementary milling tool. The cutting insert presents novel features enhancing its efficiency and precision during milling operations. The milling tool is configured to accommodate and optimize the use of this cutting insert for right-angle milling purposes. Various uses and a manufacture method for the cutting insert is detailed.

A rotary cutting method includes producing a processed product by rotary cutting of a workpiece by a rotary tool. The rotary tool has at least one cutting edge of which both of a first rake angle in a rotation radial direction and a second rake angle in a rotation axis direction are negative. The at least one cutting edge has a slanted face connected with a rake face forming the first and second rake angles. The slanted face is connected with the rake face at a ridge line. The slanted face faces a rotating direction of the rotary tool. An angle of the slanted face to the rotation axis direction is positive.

The present invention relates to an indexable cutting insert (4) for a blade seat (3) of a tool body (2) of a shoulder milling cutter (1), the cutting insert (4) being generally defined by a triangular top surface (5), a triangular bottom surface (6), and three circumferential surfaces (7) extending between the top surface (5) and the bottom surface (6), wherein on each side of the cutting insert (4), a single one of the three circumferential surfaces extends along the edges of the triangular top surface (5) and the edges of the triangular bottom surface (6), the cutting insert (4) including three cutting corners (8), three main cutting edges (9), and three secondary cutting edges (10) at each of the top surface (5) and the bottom surface (6), wherein each cutting corner (8) connects a main cutting edge (9) and a secondary cutting edge (10), wherein each cutting corner of the cutting corners (8), each main cutting edge of the main cutting edges (9), and each secondary cutting edge of the secondary cutting edges (10) are provided at the intersection of the top surface (5) or the bottom surface (6) with one of the circumferential surfaces (7), and wherein each of the circumferential surfaces (7) includes a planar contact surface (15) defined by the main cutting edge (9) at the top surface (5) and the main cutting edge (9) at the bottom surface (6).

A cutting insert has two end surfaces and a side surface joined to the two end surfaces, and the cutting insert is formed in a substantially polygonal shape. The cutting insert comprises a cutting edge and a flank connected to the cutting edge on the side surface and having a negative clearance angle. The cutting edge has a major cutting edge, an inner cutting edge, and a corner cutting edge that is formed in a curved shape between the major cutting edge and the inner cutting edge. The flank has a first to third side surface parts that are connected to the major cutting edge, the inner cutting edge and the corner cutting edge, respectively. The length in the width direction of the third side surface part is largest at a first boundary between the third side surface part and the first side surface part and gradually decreases from the first boundary to at least an intermediate position toward a second boundary between the third side surface part and the second side surface part.

A cutting tool comprising a tool body (2) with at least one insert seat (10), and a double-sided tangential cutting insert (30) with four different working positions releasably mountable in said insert seat. A support member (15) with an auxiliary support surface (16) is formed in said insert seat (10), wherein the auxiliary support surface (16) is configured to face a mating surface on an end face of the cutting insert (30) that faces a tangential support surface (13a, 13b) in the insert seat when the cutting insert is mounted in the insert seat in any of its four working positions. The cutting insert (30) and said support member (15) are so adapted to each other that there is a play of 0.01-0.04 mm between the auxiliary support surface (16) and said mating surface when the cutting insert is mounted in the insert seat in any of its four working positions with the tool body (2) in a brand new condition.

To provide a cutting insert such that a tool body can sufficiently hold the cutting insert even if one of cutting parts is broken. The cutting insert includes two side surfaces opposed to each other, a fixing hole passing through the centers of the two side surfaces, and an outer circumferential surface that is disposed between the outer circumferential edges of the two side surfaces and are connected to the outer circumferential edges of the two side surfaces. The outer circumferential surface includes four cutting parts, a first outer circumferential surface part that is disposed between the first cutting part and the second cutting part, and a second outer circumferential surface part that is opposed to the first outer circumferential surface part and is disposed between the third cutting part and the fourth cutting part. In a side view of the side surfaces from the axial direction of the fixing hole, the first outer circumferential surface part and the second outer circumferential surface part each have the center recessed toward the fixing hole, and a virtual arc having the same diameter as the diameter of the circumcircle of the cutting insert is in contact with two points on each of the outer circumferential surface parts.

The present invention relates to a cutting tool for metal cutting comprising a tool holder (1) having a holder body provided with an insert seat, which insert seat (2) comprises an abutment surface (13), and a cutting insert (3) removably received in the insert seat. The cutting insert has an overall geometry defined by a top surface (6), a bottom surface (7) and a circumferential side surface (8) connecting the top surface (6) and the bottom surface (7), A top edge (9) is formed at the intersection of the top surface (6) with the side surface (8), wherein at least a portion of the top edge (9) constitutes a top cutting edge (12). A bottom edge (10) is formed at the intersection of the bottom surface (7) with side surface (8). The side surface comprises a support surface, which support surface is in contact with the abutment surface (13) in a contact area (15), wherein the contact area (15) has a top limit at a top edge side and a bottom limit at a bottom edge side. An elongated groove (16) is arranged in the contact area, which groove has a top end (17) and extends downward toward the bottom surface (7) from the top end (17). The groove (16) extends across the contact area (15) and intersects the top limit and the bottom limit of the contact area (15), and the top end (17) of the groove (16) is located at a distance (20) of at least 0,3 mm from the top cutting edge (12).

Embodiments include superhard cutting elements and cutting tools including the cutting elements. In an embodiment, a cutting element includes a superhard table defining at least one cutting edge, a top surface at least partially defined by the superhard table, a bottom surface opposite the top surface, at least one lateral surface extending from or nearly from the top surface to or nearly to the bottom surface, and an opening extending from the top surface to the bottom surface that is spaced from the lateral surface. The opening is at least partially defined by at least one shaft surface extending from or nearly from the bottom surface and at least one tapered countersink surface extending from or nearly from the shaft surface. The tapered countersink surface exhibits a countersink angle measured between opposing portions of the at least one tapered countersink surface that is greater than about 45°.

A double-sided negative cutting insert for use in milling has a square basic shape and eight different working positions. The cutting insert (1) has a peripheral surface (10) extending around the cutting insert between first and second major surfaces (2, 3) and having four major side surfaces (11a-11d). One major cutting edge and one surface-wiping cutting edge are formed at the intersection between each major side surface and the first major surface (2) and the intersection between each major side surface and the second major surface (3). Each major side surface has a first lateral side surface (13), a central side surface (14), and a second lateral side surface (15) alternately arranged between two corner side surfaces (12). The central side surface (14) is located between the first and second lateral side surfaces (13, 15), and the central side surface is slightly recessed relative to the adjacent first and second lateral side surfaces.

The invention relates to a method for forming a chamfer (21) at an edge (20) defined by an end face (22) of a gear wheel (3) and a tooth surface (6, 7) adjoining the tooth portion of the gear wheel (3) using a cutting tool (1) having at least one cutting edge (11). Furthermore, the invention relates to a cutting tool for carrying out the method and to a blade, a device and a control program for carrying out the method. It is crucial that the cutting edge (11) machines only one machining section of the edge (20) per rotation of the cutting tool (1).

The present invention discloses a milling blade, which includes a blade body. The blade body includes an upper surface, a lower surface, and a plurality of side surfaces connecting the upper surface and the lower surface. The upper surface and the side surfaces form a cutting edge, and the cutting edge includes a main cutting edge, a circular arc tip edge, and a secondary cutting edge connected in sequence. A rake face of the main cutting edge is provided inside the main cutting edge, a rake face of the circular arc edge is provided inside the circular arc tip edge, and a rake face of the secondary cutting edge is provided inside the secondary cutting edge. The main cutting edge, the circular arc tip edge, and the secondary cutting edge are connected in sequence. The rake angle of the rake face of the main cutting edge gradually increases in a direction away from the rake face of the circular arc edge. The rake face of the circular arc edge is a concave-convex curved surface, and the rake angle of the rake face of the secondary cutting edge is constant. A milling cutter is also disclosed. The milling blade and the milling cutter have the advantages of improving the chip shape, avoiding the chip from scratching the surfaces of the blade and the workpiece, prolonging the service life of the blade, and improving the machining quality of the workpiece surface, etc.

A milling tool includes a main body and a plurality of cutting inserts with respective cutting edges. The main body has an end face and a barrel-shaped curved lateral face. A first group of the plurality of cutting inserts are fastened on the end face, a second group of the plurality of cutting inserts are fastened on the barrel-shaped curved lateral face, and the respective cutting edges describe a barrel shape. Each one of the plurality of cutting inserts may be designed as an indexable insert.

In a cutting insert 10 having a substantially pentagonal upper surface 11, a substantially pentagonal lower surface 12, and a side surface 13 between the upper surface and the lower surface, a flat cutting edge 14 is formed at each of the corners in the upper surface and the lower surface that intersect with the side surface; a first main cutting edge 15 and a second main cutting edge 16 are formed between the corners in correspondence with the flat cutting edges, an angle θ1 formed by the flat cutting edge and the first main cutting edge is in the range from 15° to 30°, and an angle θ2 formed by the flat cutting edge and the second main cutting edge is in the range from 40° to 50°.

A rotary cutting tool (20) has an insert receiving pocket with a cutting insert (30) removably secured therein and an adjustment recess rearward thereof having a radially outward facing recess side surface and an adjustment tongue spaced apart therefrom by a first inner passage. The adjustment tongue (46) extends rearwardly from a tongue root to a tongue tip and includes a tongue through bore. The tongue root has a shoulder surface facing in the forward direction and the cutting insert is in contact with the shoulder surface. An adjustment screw (86) extends through the tongue through bore and engages the recess side surface, and rotation of the adjustment screw causes axial displacement of the cutting insert in a forward direction. An imaginary straight line in the first inner passage intersects a recess rear end surface formed on a first body sub-portion of the cutting body which is integrally formed with the adjustment tongue.

A cutting insert (1) comprising: a basic body (3), comprising a first area (9), a second surface (11) which is arranged on one of the sides opposite the first surface (9), a first side surface (13) which is connected to the first surface (9) and the second surface (11), a second side surface (15) connected to the first surface (9), the second surface (11) and the first side surface (13), a first recess (17) which leads into the first surface (9), the first side surface (13) and the second side surface (15), and a second recess (19) which leads into the second surface (11), the first side surface (13) and the second side surface (15), a first part (5) with a triangular plate shape, which is arranged in the first recess (17) and has a first cutting edge (21) which is arranged at an intersection of two adjacent surfaces, and a second part (7) with a triangular plate shape, which is arranged in the second recess (19) and has a second cutting edge (23) which is arranged at an intersection of two adjacent surfaces, wherein the first recess (17) has a first floor surface (25) which is arranged away from the first surface (9), a first wall surface (27) which is arranged between the first floor surface (25) and the first surface (9), and a first valley line (29) which is located at an intersection of the first floor surface (25) and the first wall surface (27), the second recess (19) a second floor surface (31) which is arranged away from the second surface (11), a second wall surface (33) which is arranged between the second floor surface (31) and the second surface (11), and a second valley line (35) which is located at an intersection of the second floor surface (31) and the second wall surface (33), and where the first valley line (29) intersects the second valley line (35) in a perspective view onto the first surface (9).

The present invention discloses a tenon-mortise structure processing blade, which includes a blade body. An inclined surface and a cutting plane are provided on the blade body; the inclined surface is provided with tenon-mortise cutting strips and tenon-mortise cutting grooves; the extension line of the line segment formed by the inclined surface on the cutting plane is set as the first basic line; the part where the tenon-mortise cutting strip protrudes compared with the first basic line is the cutting strip cross-section; the part where the tenon-mortise cutting groove is recessed compared with the first basic line is the cutting groove cross-section; the cutting strip cross-section and the cutting groove cross-section are centrosymmetric about a certain point on the first basic line. A tenon-mortise structure processing tool includes a tool handle, a tool holder and a processing blade. The tool holder is connected to the tool handle, and the blade body is installed on the tool holder. The included angle between the first basic line and the central axis of the tool handle is 45 degrees. The present invention can reduce the trouble of separately processing with different tools and subsequent tool alignment, and provides a high precision for the fit between the tenon and the tenon-mortise; it can effectively improve the overall processing efficiency of furniture.

This invention relates to the field of grinding mill cutter head manufacturing technology, specifically to a processing method for a grinding mill cutter head and a grinding mill cutter head itself. A processing method for a grinding mill cutter head includes the following steps: positioning the cutter head workpiece such that one unprocessed cutter group area on the end face to be processed of the workpiece faces the processing station; using a machining tool, a cutting tool is used to feed into the cutter group area at the corresponding processing station to process a set of equidistant and linearly extending V-shaped cutting grooves, such that the edges between adjacent V-shaped cutting grooves form a set of toothed cutting edges; wherein the end face to be processed of the cutter head workpiece is divided into several cutter group areas in the circumferential direction; after processing the current cutter group area, steps S1-S2 are repeated until all cutter group areas are processed; the V-shaped cutting grooves include through-cutting grooves and edge cutting grooves, which can effectively prevent the formation of annular grinding marks on the cutting surface after wear, thereby improving the service life of the cutter head.

The invention relates to a 6-slice indexable insert (1), in particular for cutting tools, comprising a base body (3) with a top surface (4) with an upper surface (5) and a bottom surface (6) with a lower surface (7), wherein the upper surface (5) and the lower surface (7) are arranged substantially parallel to each other, wherein a central bore (8) with a central axis (9) leads through the base body (3) from the top surface (4) with the upper surface (5) to the bottom surface (6) with the lower surface (7), wherein the base body (3) has a substantially triangular shape with three side surfaces (10), wherein the three corners (11) of the triangular shape are substantially perpendicular to the perpendicular bisector (12) of the corners (11), so that each has an end surface (13) which is substantially planar.wherein the respective end face (13) is trapezoidal in shape with two parallel, opposing upper and lower side edges (14, 15) and two further side edges (16, 17) that are not parallel to each other and spaced apart from each other, which are designed as cutting edges (18).

A polygonal cutting blade having a circular arc-shaped groove in a hole and a cutting tool. The polygonal cutting blade includes a blade body (1) composed of an upper surface (2), a lower surface (3) and a plurality of main side surfaces (41) connecting the upper surface (2) and the lower surface (3). The blade body (1) is provided with a central hole (5) penetrating through the upper surface (2) and the lower surface (3), and the blade body (1) is centrally symmetrical about a central axis (6) of the central hole (5). The main side surfaces (41) intersect the upper surface (2) to form a main cutting edge (7). In the plurality of main side surfaces (41), at least one set of positioning side surface comprised of adjacent two of the main side surfaces (41) is provided. An inner surface of the central hole (5) has at least one circular arc-shaped groove (51) fitting with a surface of a fastening screw (11) for fixing the cutting blade. A number of the circular arc-shaped groove (51) corresponds to a number of the set of positioning side surface. Each circular arc-shaped groove (51) directly faces toward an intersection of the two main side surfaces (41) of the set of positioning side surface. A groove central axis (515) of the circular arc-shaped groove (51) has an offset distance from the central axis (6). The cutting tool includes the above cutting blade. The present invention has the advantage of stable positioning and long service life of the tool.

Book invention The present invention provides a wiper insert and a tool having the same, the wiper insert including a tool body having a cutting portion for cutting a workpiece, the cutting portion including a plurality of wipers, adjacent wipers being connected by a transition surface, and the plurality of wipers having different minor cutting angles. The technical configuration of the present invention can effectively solve the problem in the prior art of losing finishing effect when wiper inserts are attached to different arbors.

The present invention relates to an indexable cutting insert (4) for mounting in an insert seat (3) of a tool body (2) of a shoulder milling tool (1), wherein the cutting insert (4) is generally defined by a triangular top surface (5), a triangular bottom surface (6), and three peripheral surfaces (7) extending between the top surface (5) and the bottom surface (6), and on each side of the cutting insert (4), a respective one of the three peripheral surfaces extends along an edge of the triangular top surface (5) and along an edge of the triangular bottom surface (6), and the cutting insert (4) has three cutting corners ( The present invention relates to an indexable cutting insert (4) having a cutting corner (8), three major cutting edges (9), and three minor cutting edges (10), each of the cutting corners (8) connecting the major cutting edges (9) and the minor cutting edges (10), each of the cutting corners (8), each of the major cutting edges (9), and each of the minor cutting edges (10) being located at an intersection of the top surface (5) or the bottom surface (6) with one of the peripheral surfaces (7), each of the peripheral surfaces (7) having a flat contact surface (15), the flat contact surface being defined by the major cutting edge (9) of the top surface (5) and the major cutting edge (9) of the bottom surface (6).

The invention relates to an indexable cutting element (1, 30, 60) for a thread milling tool, comprising a first main surface (2) and a second main surface (3) arranged opposite one another and facing in opposite directions, and a peripheral surface (4) connecting said first and second main surfaces, the peripheral surface comprising an even number of at least four peripheral 5 sub-surfaces (5, 5 ', 6, 6', 7, 7 '), the peripheral sub-surfaces are arranged in pairs on opposite sides of the cutting element and face in opposite directions. For each pair of peripheral sub-surfaces, one sub-surface comprises one or more threaded cutting teeth (9) having a rake face (15) facing a first direction (S1) and the opposite sub-surface comprises a non-cutting surface (18, 19, 31, 32) and / or one or more threaded cutting teeth (9) having a rake face (15) facing a second direction 10 (S2), where the second direction (S2) is opposite the first direction (S1).

The invention relates to a cutting tool and to a cutting insert for a chip removing tool. The cutting tool has a tool body with at least one recess (3), at least one cutting insert which is releasably secured to the recess, and a fastening device for securing the insert in the recess. The recess has a raised portion (20) with a flat upper support surface (22) to be received in a recess of the insert and supporting the insert by receiving a bottom surface of the recess bearing on the support surface (22). A protruding member (25) of the raised portion (20) has a limiting wall (29) designed to bear against a boundary wall of the recess of the insert to establish mutual contact with the boundary wall and to prevent rotation of the insert in the recess by receiving a rotational moment acting on the insert in an active chip removing state of the tool.