143results about "Cutting inserts" patented technology

A cutting tool includes a tool body having at least one seat for receiving a cartridge or a cutting insert. The seat includes at least one support surface. The cutting tool body includes a sensor retaining structure adjoining the support surface and a piezo sensor arranged in the sensor retaining structure. The cutting tool has a clamping device for securing the cartridge or cutting insert. The piezo sensor is an elastically deformable piezo sensor, which has a central longitudinal axis and a direction of sensitivity perpendicular to the central longitudinal axis. The piezo sensor has a measuring section, along which the central longitudinal axis is substantially parallel to the support surface. The piezo sensor is elastically deformed in the sensor retaining structure to a pre-stressed initial state and deformable to a plurality of further stressed measuring states.

A cutting tool includes: a cutting edge configured on an intersecting line of a rake surface and a flank; a breaker wall formed inside the cutting edge and protruding above the cutting tool; a boss part including a boss surface formed above the breaker wall; and a plurality of recessed parts formed in the boss part so as to extend toward the cutting edge. The width of the breaker wall in a direction in which the cutting edge extends along an intersecting line (including a virtual intersecting line or a virtual extension of the intersecting line) of the boss surface and the breaker wall, is greater than the width of a groove formed by the recessed part along the same intersecting line.

A cutting insert according to an aspect includes a base portion and a cutting portion. The cutting portion includes a front end surface, an top surface, a first lateral surface, a second lateral surface, a front cutting edge, and a lateral cutting edge. The front cutting edge includes a first cutting edge and a second cutting edge, and a radius of curvature of the first cutting edge is greater than a radius of curvature of the second cutting edge.

The invention relates to a cutting insert (1, 10) for a turning tool. The cutting insert comprises a top surface (2), a bottom surface (3), a front surface (6), a rear surface (7) and first and second side surfaces (4, 5). A longitudinal axis (A1) intersects the front and rear surfaces (6, 7) and extends mid-way between the first and second side surfaces (4, 5). A cutting edge (8) is formed at an intersection between the top surface (2) and the front surface (6), wherein the cutting edge (8) comprises a surface generating cutting edge (9), a first major cutting edge portion (17) and a first corner cutting edge (15). The first major cutting edge portion (17) extends rearward from the surface generating cutting edge (9), and the first corner cutting edge (15) extends rearward from the first major cutting edge portion (17). In a plan view of the top surface, the first corner cutting edge (15) is convexly curved and has a first length of extension (L1) and the surface generating cutting edge (9) is convexly curved and has a second length of extension (L2), wherein the first length of extension (L1) is greater than the second length of extension (L2).

A grooving or part-off tool assembly for Swiss-style machining includes a holder. The holder includes a resilient normally-closed holder clamp. In a preferred embodiment the holder clamp biases a blade holding a cutting insert against a pocket side abutment surface of a holder pocket.

A cutting tool includes: a cutting edge configured on an intersecting line of a rake surface and a flank; a breaker wall formed inside the cutting edge and protruding above the cutting tool; a boss part including a boss surface formed above the breaker wall; and a plurality of recessed parts formed in the boss part so as to extend toward the cutting edge. The width of the breaker wall in a direction in which the cutting edge extends along an intersecting line (including a virtual intersecting line or a virtual extension of the intersecting line) of the boss surface and the breaker wall, is greater than the width of a groove formed by the recessed part along the same intersecting line.

A rotary tool (2) is specified, comprising a cutting insert (4) having at least one cutting portion (10) and a fastening portion (12), where the fastening portion (12) has a fastening surface (40), and a clamping holder (6) having a support projection (26) and a support (24), where the support projection (26) and the support (24) are configured to support the cutting portion (10) and the fastening portion (12). Wherein the fastening part (12) has a fastening part upper side (30) and a fastening part lower side (32), each of which is designed in a stepped manner in the axial direction (A), and wherein an upper side part surface (34) of the fastening part upper side (30) bears against a support projection surface (52) of the support projection (26), and an underside part surface (36, 38) of the fastening part underside (32) abuts against the support (24). A cutting insert (4) and a clamping holder (6) are also specified.

A system for automated mounting and dismounting of at least one cutting insert on a tool body with a screwing tool is provided. The cutting insert includes a top surface, a bottom surface, a circumferential side surface connecting the top and bottom surfaces, and a through hole extending from the top surface to the bottom surface for receiving the shaft of a fastening screw. A carrier device is arranged to pick up and release the cutting insert with the fastening screw. The carrier device has a body having a front surface, a rear surface, a circumferential side surface connecting the front and rear surfaces, and a channel extending from a front end opening in the front surface to a rear end opening in the rear surface. A method for automated mounting of a cutting insert with a fastening screw on a tool body is also provided.

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.

In a cutting tool having an indexable cutting insert (20) with exactly four cutting portions (26), the cutting insert is removably securable to an insert holder by a fastener. The cutting insert (20) has two opposing end surfaces (22) with a peripheral side surface (24) extending therebetween, and each cutting portion (26) has a major cutting edge (28) formed by the intersection of a rake surface (30) and a relief surface (32). The peripheral side surface (24) has first and second pairs of opposing side surfaces (34, 36) which include the four relief surfaces (32) and the four rake surfaces (30), respectively. In an end view, four cutting points on the four major cutting edges (28) define the transitions between the first and second pairs of opposing side surfaces (34, 36), and a minimum first length dimension between the second pair of opposing side surfaces (36) is less than six-tenths of a minimum second length dimension between two of the four cutting points.

An embodiment of a cutting insert is provided. The cutting insert includes an upper surface, a lower surface, a plurality of side surfaces extending between the upper surface and the lower surface, an insertion hole extending through the upper surface and the lower surface, and a corner portion provided with a cutting edge. At least one of the upper surface and the lower surface has a plurality of recesses extending between the insertion hole and the corner portion. The plurality of recesses includes a first recess into which a portion of a mounting portion is inserted when the cutting insert is supported by the mounting portion and a second recess into which another portion of the mounting portion is inserted when the cutting insert is supported by the mounting portion. The second recess has a sidewall spaced apart from the another portion of the mounting portion.

A coated tool includes a base body and a coating film. The coated tool has a first surface with a rake face, a second surface with a flank face, and a third surface located between the first surface and the second surface and being a C surface or an R surface. The coating film includes a first coating film located on the first surface and / or a second coating film located on the second surface, and a third coating film located on the third surface. A wavenumber of a maximum Raman peak of the first coating film is a first wavenumber, a wavenumber of a maximum Raman peak of the second coating film is a second wavenumber, and a wavenumber of the maximum Raman peak of the third coating film is a third wavenumber. The third wavenumber is smaller than the first wavenumber and the second wavenumber.

The invention relates to a turning tool (1) comprising a tool body (2) having an insert seat (5) configured to receive a cutting insert (6a-c). The insert seat (5) comprises a bottom surface and a first side wall section (8a) and a second side wall section (8b), the bottom surface together with the first and second side wall sections defining a space for receiving the cutting insert. The insert holder (5) further comprises a rigid member (17) integrally formed by a first end portion (18a) thereof to an upper portion of the first side wall section (8a) and by a second end portion (18b) thereof to an upper portion of the second side wall section (8b), the side wall sections are arranged above the space so as to extend between the side wall sections above the space and are rigidly connected with the side wall sections. The invention also relates to a turning tool assembly comprising such a turning tool (1) and a cutting insert (6a-c).

A metal cutting drill insert for a drill tool has opposing top and bottom surfaces with a symmetry axis extending therebetween. At least one stepped cutting edge is configured to cut a continuous chip along the at least one stepped cutting edge. The at least one stepped cutting edge is formed at an intersection of a rake face and an adjoining clearance face of the side surface. In a top view facing the top surface the at least one stepped cutting edge includes a step formed by a transitional edge between a first part and a second part edge. The step extends in a radial direction relative the symmetry axis by a first distance h1, and in a side view facing the side surface the step extends in a direction from the bottom surface towards the top surface by a second distance h2, wherein 0.8·h1≤h2≤1.2·h1.

A cutting insert for a modular rotary cutting tool is disclosed. The cutting insert may include a shaft, an opposing insert centering surface, and a convex torque transmitting insert driving surface.

In order to improve the performance of supplying a cooling liquid to a cutting edge and further improve chip processing performance and durability performance, provided is a cutting tool comprising: a cutting edge (26) formed on the intersecting line of a rake face (22) and a flank face (24); a chip breaker wall (28) formed on the inner side of the cutting edge (26) and protruding upward of the cutting tool; the boss part (30) comprises a boss surface (32) formed above the chip breaker groove wall (28); and a plurality of recesses (36) formed in the boss (30) and extending toward the cutting edge (26). The width (W28) of the cutting edge (26) of the breaker wall (28) in the direction of extension of a line (L1) of intersection of the boss surface (32) and the breaker wall (28) (including a virtual intersection line or a virtual extension line of the intersection line) is wider than the width (W38) of a groove (38) formed by the recess (36) on the intersection line (L1).

A cutting head (22) has driven surfaces and includes a head coupling pin that protrudes rearwardly from a head rear surface. The head coupling pin includes a pin recess recessed in the pin peripheral surface. A tool holder (24), elongated along a holder longitudinal axis (D), has driving members and a holder coupling hole (96) recessed in a holder base surface. A fastening member (26) is disposed in a holder through bore (102) that extends from the holder base surface to a holder peripheral surface. The holder through bore (102) is located entirely on one side of a longitudinal plane containing the holder longitudinal axis (D). When a cutting tool (20) which includes the cutting head (22) and tool holder (24) is in a fastened position, the head coupling pin is removably retained within the holder coupling hole (96) upon engagement with the fastening member (26).

The present invention relates to an indexable cutting insert for turning, a complementary tool holder and a tool comprising the cutting insert and the tool holder. The indexable cutting insert comprises: a two-fold rotational symmetry about an axis of symmetry; a top surface, wherein the top surface comprises a substantially rectangular basic shape with two longitudinal edges and two transverse edges, wherein the top surface comprises a first mounting surface and a second mounting surface spaced from the first mounting surface in a direction parallel to the longitudinal edges; a bottom surface, wherein the bottom surface comprises a first abutment surface, a bottom connecting surface and a second abutment surface, wherein the bottom connecting surface connects the first abutment surface and the second abutment surface, and wherein the second abutment surface is spaced from the first abutment surface in a direction parallel to the longitudinal edges, a side surface connecting the top surface and the bottom surface, wherein an intersection of the top surface and the side surface forms first and second cutting edges positioned along the transverse edges of the top surface. Each of the first and second abutment surfaces comprises a surface normal, which surface normal forms an angle of 5 degrees or more with the axis of symmetry such that the first and second abutment surfaces define a convex basic shape of the bottom surface, wherein the angle is measured in a cross-sectional plane parallel to the axis of symmetry and parallel to the longitudinal edges.

The present invention relates to a double-sided negative turning insert for metal cutting, comprising a body including an upper surface (1) with a major upper support surface (14), a lower surface (2) with a major lower support surface (15), a peripheral side surface (3) connecting the upper surface (1) and the lower surface (2), and a central plane located between the upper surface (1) and the lower surface (2). The peripheral side surface includes a total of three corner side surfaces (4), each of which is located at a respective corner of an imaginary triangle (10) having three sides when viewed from above. The peripheral side surface includes a total of three major side surfaces (5), each of which extends from a respective associated first corner side surface (4) to a respective associated second corner side surface (4) along a respective associated one of the three sides of the imaginary triangle (10). At least one of the three major side surfaces (5) includes a primary support surface (13). At least one major side surface (5) further comprises a total of a pair of oppositely facing secondary support surfaces (21), each of which extends inward relative to a respective one of the primary support surfaces (13), and each of which extends perpendicular to the central plane.

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 relates to a machining tool (1), comprising: a tool carrier (2) having at least one seat (3) thereon for receiving a replaceable, indexable cutting tool (4); and a fastening screw (5) for securing the cutting tool (4) to the seat (3), the fastening screw (5) having a head (50) for supporting the cutting tool (4) and a shank (51) at least partially provided with external threads (52). The seat (3) has a contact surface (30) for supporting the lower side (40) of the cutting tool (4) and at least one transverse support surface (31) for supporting the side side (41) of the cutting tool (4). The contact surface (30) has a through hole (6) through which the shank (51) of the fastening screw (5) passes. A clamping element (7) is arranged on the tool carrier (2) behind the contact surface (30) of the seat (3). The clamping element (7) has an internal thread (72) that interacts with the external thread (52) of the fastening screw (5). The fastening screw (5) and the clamping element (7) can move together in the displacement direction (V).

A cutting tool for thread cutting has a thread turning cutting insert releasably retained in an insert pocket by a fastening member. The thread turning cutting insert has a thread cutting portion having three spaced apart cutting teeth. and a chip forming groove recessed in an insert upper surface. The chip forming groove includes a near-flank groove surface close to the cutting teeth and far-flank grove surface further away from the cutting teeth. The thread cutting portion includes three cutting edges formed at the intersection of the insert upper surface and an insert peripheral surface. Each cutting edge is located on a respective cutting tooth. The thread cutting portion includes three planar land surfaces located on the insert upper surface. Each land surface extends from an entire length of a respective cutting edge to the near-flank groove surface.

The invention relates to a device for cooling a tool, which device comprises a main body, a contact element, and at least one inlet into the main body and an outlet out of the main body, wherein the inlet and the outlet are interconnected by one or more inner channel(s) in the main body, and the device can be connected to the tool in such a way that the contact element is in contact with the tool, and the one or more inner channel(s) is / are designed to conduct a cooling fluid. One or more inner channels comprise(s) a contact portion, the contact portion being in contact with the contact element, and the contact portion comprising multiple flow-guiding elements which are designed in such a way that they locally increase the turbulence and the flow rate of the cooling fluid through the contact portion. The invention also relates to a system comprising the device and the tool, and to a cooling method using the system.

By accurately inspecting and measuring (correcting) the relative position of the protrusions to the cutting edge, it becomes easier to position them appropriately, and by devising the arrangement of the protrusions, chip evacuation performance is improved regardless of the insert shape. [Solution] A cutting tool comprising an upper surface 10, a lower surface, a side surface, a cutting edge 60 including a pair of main cutting edges 61 and a corner cutting edge 62, a first upper surface 11 and a second upper surface 12, an inclined surface 40, a groove 70 provided on the second upper surface 12, and a first projection 41 and a second projection 42 provided so as to protrude from the inclined surface 40. The first projection 41 extends along the extension line 70eL of the groove 70, and the second projection 42 is positioned symmetrically with respect to the extension line 70eL. At the intersection point P1 of the corner cutting edge 62 and the bisector Ba in a top view, if the distances from the imaginary line VL that intersects the bisector Ba perpendicularly to the tip 41t of the first projection 41 and the tip 42t of the second projection 42 are L1 and L2, respectively, then L1

The invention relates to an 8-slice indexable insert (1) with a base body (4) having two plane-parallel side surfaces (5) and four circumferential surfaces (6), wherein a central bore (7) with a central axis (8) leads through the base body (4) from one of the side surfaces (5) to the other of the side surfaces (5), and wherein the base body (4) is approximately cuboid in shape, wherein the base body (4) is divided along the central axis (8) into a first cutting area (9) with the first side surface (5), a central contact area (10), and a second cutting area (11) with the second side surface (5), wherein the first cutting area (9) and the second cutting area (11) are each rotated about the central axis (8) by a defined angle relative to the contact area (10), and wherein the circumferential surfaces (6) are each divided into a first cutting surface (12), a contact surface (13), and a second cutting surface (14).such that the four contact surfaces (13) of the circumferential surfaces (6) form the contact area (10), the four first cutting surfaces (12) with the first side surface (5) form the first cutting area (9), and the four second cutting surfaces (14) with the second side surface (5) form the second cutting area (11), wherein each of the first and second cutting surfaces (12, 14) has a main cutting edge (15) and a face edge (16), wherein the respective main cutting edge (15) extends at the transition between a cutting surface (12, 14) and a side surface (5), and wherein the respective face edge (16) extends at the transition of the cutting surface (12, 14) to an adjacent cutting surface (12, 14), and wherein the main cutting edge (15) and the face edge (16) of each cutting surface (12, 14) merge into one another, and wherein the respective cutting surface (12, 14) The trough (18) extending from the face cutting edge (16) along the main cutting edge (15) has a groove for the removal and shaping of chips.

The present invention discloses an insert adaptor for parting off having an adaptor index axis and comprising: parallel and planar adaptor first and second sides connected by an adaptor peripheral surface which extends peripherally around the adaptor; the adaptor index axis extending through the center of the first and second sides; wherein the adaptor peripheral surface is formed with a plurality of pockets which are configured for resilient clamping and bearing surfaces extending between the pockets; characterized in that: the insert adaptor has a material volume of greater than 50% of an imaginary cylinder encompassing the insert adapter; and each of the bearing surfaces are straight.

A cutting insert (1) comprising: a first area (3), a second surface (5) which is arranged on one of the sides opposite the first surface (3), a third surface (7) which is arranged between the first and second surfaces (3, 5), a cutting edge (9) which is located at an intersection of the first surface (3) and the third surface (5), a central axis (O1) passing through a center point of the first surface (3) and a center point of the second surface (5), and an imaginary plane (S) that is arranged between the first and second surfaces (3, 5) and runs orthogonally to the central axis (O1), wherein the first area (3) a corner (11), a first side (13) extending from the corner (11), a first inclined surface (17) arranged along the corner (11) and with a first angle of inclination (θ1) closer to the imaginary plane (S) as it moves away from the corner (11), a second inclined surface (19) which is arranged further inwards in the first surface (3) than the first inclined surface (17) and is closer to the imaginary plane (S) with a second angle of inclination (θ2) as it moves away from the corner (11), a third inclined surface (21) arranged along the first side (13) and closer to the imaginary plane (S) at a third angle of inclination (θ3) as it moves away from the first side (13), a fourth inclined surface (23) which is arranged further inwards in the first surface (3) than the third inclined surface (21) and is closer to the imaginary plane (S) with a fourth angle of inclination (θ4) as it moves away from the first side (13), a web surface (29) which is arranged between the corner (11) and the first inclined surface (17) and between the first side (13) and the third inclined surface (21), and a projecting part (25) which is arranged further inwards in the first surface (3) than the second inclined surface (19) and the fourth inclined surface (23), which is further away from the imaginary plane (S) with a fifth angle of inclination (θ5) as the distance from the corner (11) increases, and which is further away from the imaginary plane (S) with a sixth angle of inclination (θ6) as the distance from the first side (13) increases, where the second angle of inclination (θ2) is greater than the first angle of inclination (θ1), where the fourth angle of inclination (θ4) is greater than the third angle of inclination (θ3), wherein in a cross-section that is orthogonal to the imaginary plane (S) and along an angle bisector (L) of the corner (11), the fifth angle of inclination (θ5) is smaller than the second angle of inclination (θ2), and where in a cross-section orthogonal to the first side (13) the sixth angle of inclination (θ6) is greater than the third angle of inclination (θ3).

In order to easily disposed a projection by accurately inspecting and measuring (correcting) a position of the projection relative to the cutting edge, and to improve the chip control regardless the insert shape by optimizing the disposition of the projection, the present invention provides a cutting tool including: an upper surface; a lower surface; a side surface; a cutting edge including a pair of major cutting edges and a corner cutting edge; a first upper surface; a second upper surface; an inclined surface; a groove disposed in the second upper surface; and a first projection and a second projection which are formed to be projected from the inclined surface. The first projection extends on the groove along the extended line, and the second projection is disposed to be linearly symmetric with respect to the extended line. At an intersection between the corner cutting edge and the bisector in a top view, L1 < L2 is established, where L1 is a distance from a virtual line intersecting perpendicularly to the bisector to a leading end of the first projection, and L2 is a distance from the virtual line to a leading end of the second projection.

A cutting insert for a modular rotary cutting tool is disclosed. The cutting insert can comprise a shank, opposing insert centering surfaces, and convex torque transmission insert drive surfaces.