A shouldering insert (1) having a top surface (2), a bottom surface (3) and a peripheral surface (4) between the top surface (2) and the bottom surface (3), wherein the shouldering insert (1) has a cutting-edge-region (5) on parts of the top surface (2), which is non-indexable with any other regions of the top surface (2) and bottom surface (3) and is shaped by the peripheral surface (4) and the top surface (2), such that the cutting-edge-region (5) has a main cutting-edge (6), a wiping cutting-edge (7), and a ramping cutting-edge (8), wherein the top surface (2) has an asymmetrical outer contour when viewed in a top view.
A shouldering insert (1) having a top surface (2), a bottom surface (2a) and a peripheral surface (9) between the top surface (2) and the bottom surface (2a), characterized in that a top cutting region (200) is shaped by the peripheral surface (9) and the top surface (2) and in that a bottom cutting region (200a) is shaped by the peripheral surface (9) and the bottom surface (2a), wherein within the shouldering insert (1) the top cutting region (200) is indexable only with the bottom cutting region (200a).
CERATIZIT HARD MATERIAL SOLUTIONS S.À R.L. (Luxembourg)
CERATIZIT LUXEMBOURG S.À.R.L. (Luxembourg)
Inventor
Buono, Robin
Laschiazza, Cecilio
Magin, Michael
Picco, Luca
Abstract
characterized in thatcharacterized in that the masonry drill head has an at least section-wise planar joining end for heat induced joining to a shaft, a working end (104) for shattering masonry material under a percussive motion, at least two conveying webs (101a, 101b) each emerging from the joining end and at least two conveying grooves each extending between two of the conveying webs (101a, 101b), wherein a cross-sectional solid material area of the masonry drill head increases towards the joining end, such that a masonry material debris intake of at least one of the conveying grooves increases towards the working end (104).
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
A milling tool includes a cutting insert, a holder, a fastener and a shim. The fastener forms a first channel cooperatively with the cutting insert. The first channel is configured to direct coolant towards a top side of the insert. In order to better prevent thermal fatigue of the cutting insert under milling conditions, the shim includes a second channel configured to direct coolant towards a clearance side of the cutting insert. A method of using a milling tool and a milling process are also provided.
A cobalt-free, tungsten carbide-based cemented carbide material includes 70-97 wt % of hard substance particles formed at least predominantly by tungsten carbide, and 3-30 wt % of a metallic binder which is an iron-nickel-based alloy. The iron-nickel-based alloy includes at least iron, nickel and chromium, with a ratio of Fe to (Ni+Fe) of 0.70≤Fe/(Fe+Ni)≤0.95; a Cr content of 0.5 wt %≤Cr/(Fe+Ni+Cr) and (i) for the range 0.7≤Fe/(Fe+Ni)≤0.83: Cr/(Fe+Ni+Cr)≤(−0.625*(Fe/(Fe+Ni))+3.2688) wt %; (ii) for the range 0.83≤Fe/(Fe+Ni)≤0.85: Cr/(Fe+Ni+Cr)≤(−27.5*(Fe/(Fe+Ni))+25.575) wt %; and (iii) for the range 0.85≤Fe/(Fe+Ni)≤0.95: Cr/(Fe+Ni+Cr)≤2.2 wt %; an optional Mo content, an optional V content, and unavoidable impurities up to in total not more than 1 wt % of the cemented carbide material.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
A focusing tube is configured to focus a high-pressure liquid jet containing abrasive particles. The focusing tube has a focusing duct portion and an exit opening for the free discharge of the liquid jet from the focusing duct portion. A center point of the discharge opening coincides with the longitudinal axis of the focusing duct portion. The focusing duct portion is delimited by a liquid-impermeable channel wall, extends from the discharge opening at a focusing taper angle and is tapered toward the discharge opening. The focusing taper angle lies in a range from 0.05° to 1°. This allows the service life of the focusing tube to be increased in a way that is simple in terms of design.
B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
7.
CUTTING ELEMENT, USE THEREOF AND MOBILE CUTTING DEVICE THEREWITH
A cutting element is configured such that it may be used to cut grass stalks or other organic stalk materials in a vegetation area. The cutting element has a main body formed from a main body material and cutting bodies formed on opposite sides of the main body which have a longer service life in the region of the cutting body relative to the prior art. At least one of the cutting bodies is formed by a cutting body material which is distinct from the main body material, is sintered and is harder than the main body material. The sintered cutting body material is formed by a hard metal or cermet and the higher hardness thereof is based on hard material particles present therein.
A cutting element, which is configured for the machining of a non-metallic composite material composed of a matrix and particles held together by the matrix, has a flank face, a rake face and a cutting edge which is coated with an edge coating and via which the flank face and the rake face are connected to one another, with which the non-metallic composite material can be machined in an improved fashion. The cutting edge within a cutting edge section thereof is curved in such a way that the cutting edge immediately beneath the edge coating in a section in a section plane that is perpendicular to the cutting edge has, at every point of the cutting edge section, a local radius of curvature which is greater than or equal to 10 μm and less than or equal to 80 μm.
A tungsten-carbide-based hard material includes the following components: tungsten carbide with an average particle size of 0.1-1.3 μm; 1.0-5.0 wt. % (Co+Ni), with a ratio of Co/(Co+Ni) in wt. % of 0.4≤Co/(Co+Ni)≤0.95; 0.1-1.0 wt. % Cr, with a ratio of Cr to (Co+Ni) in wt. % of 0.05 Cr/(Co+Ni) 0.20; 0.01-0.3 wt. % Mo; and 0.02-0.45 wt. % Me, where Me represents one or more elements from the group Ta, Nb, Hf and Ti, preferably Ta and/or Nb; and wherein 0.01≤Me/(Co+Ni)≤0.13.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A cutting tool for severing a non-metallic material includes a holding element and a cutting element held on the holding element for cutting contact with the non-metallic material. A boundary region adjoins a holding material region of the holding element and a cutting material region of the cutting element. The precise severing of, for example, bone materials of human or animal origin, is possible in that a deformation resistance against an elastic deformation of the holding material region is greater than a deformation resistance against an elastic deformation of the cutting material region.
A clamping device is configured to clamp a cutting insert onto a holder of a cutting tool. The clamping device contains a clamping bolt and a locking bolt, wherein the clamping bolt is configured to be inserted into each of the cutting insert and the holder. The locking bolt is configured to be inserted into the holder, such that the locking bolt pre-strains the clamping bolt into clamping the cutting insert onto the holder. The clamping bolt is configured rotatable about a longitudinal clamping axis of the clamping bolt relative to each of the cutting insert and the locking bolt, such that the clamping bolt wedge engages with the locking bolt during a clamping bolt rotation about the longitudinal clamping axis.
B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
B23C 5/22 - Securing arrangements for bits or teeth
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B23B 27/10 - Cutting tools with special provision for cooling
In order to provide for a milling tool (1, 1 ') which comprises a cutting insert (2, 2'), a holder (3), a fastener (4) and a shim (5, 5'), wherein the fastener (4) forms cooperatively with the cutting insert (2, 2') a first channel (100) and the first channel (100) is configured to direct coolant towards the insert top side (21, 21'), such that thermal fatigue of the cutting insert (2, 2') is better prevented under milling conditions, it is suggested that the shim (5, 5') comprises a second channel (200) configured to direct coolant towards a clearance side (27) of the cutting insert (2, 2').
A drawing die made from cemented carbide material is formed of tungsten carbide and a metallic binder. The cemented carbide material includes: tungsten carbide with an average grain size of 0.15-1.3 μm, 0.5-5.0 wt.-% (Co+Ni), with a ratio Co/(Co+Ni) of 0.6-0.9; 0.1-1.0 wt.-% Cr, with 0.05≤Cr/(Co+Ni)≤0.22; 0.02-0.2 wt.-% Mo; and 0-0.04 wt.-% V. The cemented carbide material is substantially free from η-phase.
B21C 3/02 - DiesSelection of material thereforCleaning thereof
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
14.
COBALT-FREE TUNGSTEN CARBIDE-BASED HARD-METAL MATERIAL
Disclosed is a cobalt-free tungsten carbide-based hard-metal material comprising 70-97 wt% of hard-material particles which are at least predominantly formed by tungsten carbide and 3-30 wt% of a metallic binder which is an iron-nickel-based alloy comprising at least iron, nickel and chromium with a ratio of Fe to (Ni + Fe) of 0.70≤ Fe/(Fe + Ni) ≤ 0.95; a Cr content of 0.5 wt% ≤ Cr/(Fe + Ni + Cr) and (i) for the range 0.7 ≤ Fe/(Fe + Ni) ≤ 0.83: Cr/(Fe + Ni + Cr) ≤ (- 0.625 * (Fe/(Fe + Ni)) +3.2688) wt%; (ii) for the range 0.83 ≤ Fe/(Fe + Ni) ≤ 0.85: Cr/(Fe + Ni + Cr) ≤ (- 27.5 * (Fe/(Fe + Ni)) + 25.575) wt% and (iii) for the range 0.85 ≤ Fe/(Fe + Ni) ≤ 0.95: Cr/(Fe + Ni + Cr) ≤ 2.2 wt%; optionally with an Mo content relative to (Fe + Ni + Cr) of 0 wt% ≤ Mo/(Fe + Ni + Cr) ≤ 10 wt%; optionally with a V content relative to (Fe + Ni + Cr) of 0 wt% ≤ V/(Fe + Ni + Cr) ≤ 2 wt%; and unavoidable impurities up to a total of not more than 1 wt% of the hard-metal material.
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 1/05 - Mixtures of metal powder with non-metallic powder
A thread cutting insert for cutting threads includes a plurality of cutting teeth disposed along a cutting portion, each cutting tooth is provided with an allocated chip former, and the chip formers are provided on a rake face of the thread cutting insert. The shape of at least two cutting teeth is different from each other. At least one cutting tooth along the cutting portion is provided with an allocated chip former the shape of which is adapted to the shape of that cutting tooth which, with respect to an order of engagement during cutting operation, precedes the subsequent cutting tooth along the cutting portion such that the at least one chip former has a shape adapted to the cross-section of chips encountered by it. A set of at least two thread cutting inserts, a thread cutting tool and a method for cutting threads, are also provided.
The aim of the invention is to provide a focusing tube (1, 1'), which is designed to focus a high-pressure liquid jet containing abrasive particles and comprises: a focusing channel portion (9, 9'); a discharge opening (8, 8') for the free discharge of the liquid jet from the focusing channel portion (9, 9'); and a longitudinal axis (6, 6') of the focusing channel portion (9, 9'), which longitudinal axis contains the center point (7, 8a') of the discharge opening (8, 8'), wherein the focusing channel portion (9, 9') is delimited by a liquid-impermeable channel wall (11, 11'), extends from the discharge opening (8, 8') at a focusing taper angle (2, 2') and is tapered toward the discharge opening (8, 8'), the service life of the focusing tube being increased in a way that is simple in terms of design. This aim is achieved, according to the invention, in that the focusing taper angle (2, 2') lies in the range of 0.05° to 1°.
B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
The invention relates to a cutting element (1) which is designed for cutting a non-metallic composite material of a matrix and particles held together by the matrix, comprising a flank (4), a face (5) and a cutting edge (6) coated with an edge coating (2) by which edge the flank (4) and the face (5) are connected to one another, with which the non-metallic composite material can be machined in an improved manner, such that the cutting edge (6) is curved within a cutting edge portion (8), and away therefrom, such that the cutting edge (2) has, at any point in the cutting edge portion (8) immediately below the edge coating (2) in a section in a section plane that is perpendicular to the cutting edge (6), a local curvature radius (9) which is greater than or equal to 10 μm and smaller than or equal to 80 μm, preferably greater than or equal to 15 μm and smaller than or equal to 60 μm, even more preferably greater than or equal to 20 μm and smaller than or equal to 40 μm.
B27C 1/00 - Machines for producing flat surfaces, e.g. by rotary cuttersEquipment therefor
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor
18.
CUTTING ELEMENT, USE THEREOF AND MOBILE CUTTING APPARATUS THEREWITH
The invention relates to a cutting element (1', 1'', 1''', 1'''', 1''''', 1'''''', 1'''''''), which is designed such that blades of grass or other organic bladed material in an area of vegetation can be cut therewith, comprising a main body (2', 2'', 2''', 2''''), which is formed from a main body material, and cutting bodies (3', 3'') formed on opposite sides of the main body (2', 2'', 2''', 2''''). According to the invention, to provide a cutting element of this type with a longer service life compared to the prior art in the region of the cutting body, at least one of the cutting bodies (3', 3'') is formed from a cutting body material which is different from the main body material, is sintered and is harder than the main body material, the sintered cutting body material being formed by a hard metal or cermet, and the greater hardness thereof being based on hard material particles therein.
The invention relates to a tungsten-carbide-based hard metal material, comprising: tungsten carbide with an average particle size of 0.1 - 1.3 µm; 1.0 - 5.0 wt.% (Co + Ni), with a ratio of Co/(Co + Ni) in wt.% of 0.4 ≤ Co/(Co + Ni) ≤ 0.95; 0.1 - 1.0 wt.% Cr, with a ratio of Cr to (Co + Ni) in wt.% of 0.05 ≤ Cr/(Co + Ni) ≤ 0.20; 0.01 - 0.3 wt.% Mo; and 0.02 - 0.45 wt.% Me, where Me = one or more elements from the group Ta, Nb, Hf and Ti, preferably Ta and/or Nb; and 0.01 ≤ Me/(Co + Ni) ≤ 0.13.
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
B23C 5/18 - Milling-cutters characterised by physical features other than shape with permanently-fixed cutter-bits or teeth
B23D 45/00 - Sawing machines or sawing devices with circular saw blades or with friction saw discs
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B23B 27/14 - Cutting tools of which the bits or tips are of special material
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
C04B 35/56 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
A saw blade contains a body, in particular of a hard material, having a cutting portion. The cutting portion has a length and a width and being provided along its length with a plurality of teeth which are formed by a plurality of grooves. Each tooth being formed by at least two grooves. There is a first plurality of grooves, the grooves of which are parallel to each other along a first direction and in that there is a second plurality of grooves, the grooves of which are parallel to each other in a second direction. The first direction and the second direction are inclined to each other such that along the length of the cutting portion at least one of the grooves of the first plurality of grooves is intersected by a groove of the second plurality of grooves.
In order to provide a cutting tool (1, 1', 1", 1"', 1"", 1''''') for severing a non-metallic material, comprising a holding element (6, 6", 6"', 6""), a cutting element (3, 3', 3", 3''''') held on the holding element (6, 6", 6"', 6"") for cutting contact with the non-metallic material and a boundary region (7) adjoining a holding material region (60) of the holding element (6, 6", 6"', 6"") and a cutting material region (30) of the cutting element (3, 3', 3", 3'''''), by which more precise severing, in particular - but not only - of bone materials of human or animal origin, is possible, according to the invention a deformation resistance against an elastic deformation of the holding material region (60) is greater than a deformation resistance against an elastic deformation of the cutting material region (30).
A drawing die (2) made from cemented carbide material is provided which comprises tungsten carbide and a metallic binder. The cemented carbide material comprises: tungsten carbide with an average grain size of 0.15-1.3 μm, 0.5-5.0 wt.-% (Co + Ni), with a ratio Co/(Co + Ni) of 0.6-0.9; 0.1-1.0 wt.-% Cr, with 0.05 ≤ Cr/(Co + Ni) ≤ 0.22; 0.02-0.2 wt.-% Mo; and 0-0.04 wt.-% V. The cemented carbide material is substantially free from η-phase.
C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
B31C 3/02 - Making tubes or pipes by feeding obliquely to the winding mandrel centre line and inserting into a tube end a bottom to form a container
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
B21C 3/02 - DiesSelection of material thereforCleaning thereof
Saw blade (1) comprising a body (2), in particular of a hard material, having a cutting portion (3), the cutting portion (3) having a length (L) and a width (W) and being provided along its length (L) with a plurality of teeth which are formed by a plurality of grooves (4, 5) each tooth being formed by at least two grooves (4, 5), characterized in that there is a first plurality of grooves (4), the grooves (4) of which are parallel to each other along a first direction (d1) and in that there is a second plurality of grooves (5), the grooves (5) of which are parallel to each other in a second direction (d2) and in that the first direction (d1 ) and the second direction (d2) are inclined to each other such that along the length (L) of the cutting portion (3) at least one of the grooves (4) of the first plurality of grooves (4) is intersected by a groove (5) of the second plurality of grooves (5).
A double-sided tangential milling cutting insert (1) for corner milling, comprises: a first end surface (2), an opposed second end surface (3), two main side surfaces (4), two secondary side surfaces (6), and a through-hole (10) penetrating the two main side surfaces (4). The first and second end surfaces (2, 3) each have two diagonally opposed raised corners (8) and two diagonally opposed lowered corners (9). The cutting insert (1) has a first symmetry plane (SP12) and a reference plane (RP) dividing the cutting insert into two halves. First to fourth cutting edge sections (11a, 11 b, 11c, 11 d) each having a main cutting edge (12), a raised corner (8) and a wiper edge (13) are formed at intersections of the first and second end surfaces (2, 3) with the main side surfaces (4) and secondary side surfaces (6). A transitional edge portion (14), connecting the wiper edge (13) to an adjacent lowered corner (9), is formed along the secondary side surface (6). Adjacent to the transitional edge portion (14) the secondary side surface (6) has a support surface (15) which comes closer to a first symmetry plane (SP12) with increasing distance from a reference plane (RP).
Thread cutting insert (12) for cutting threads, having a plurality of cutting teeth (1, 2, 3, 4, 5) arranged along a cutting portion wherein each cutting tooth (1, 2, 3, 4, 5) is provided with an allocated chip former (6, 7, 8, 9, 10), the chip formers (6, 7, 8, 9, 10) being provided on a rake face (11) of the thread cutting insert (12), wherein the shape of at least two cutting teeth (1, 2, 3, 4, 5) is different from each other, characterized in that at least one cutting tooth (2, 3, 4, 5) along the cutting portion is provided with an allocated chip former (7, 8, 9, 10) the shape of which is adapted to the shape of that cutting tooth (1, 2, 3, 4) which with respect to an order of engagement during cutting operation precedes the subsequent cutting tooth (2, 3, 4, 5) along the cutting portion such that the at least one chip former (7, 8, 9, 10) has a shape adapted to the cross-section of chips encountered by it.
Disclosed is a cutting tool (1) comprising a blade portion (4) made of a hard metal that includes hard particles embedded in a ductile metal binder, and a support portion (2) made of a metal material. The blade portion (4) and the support portion (2) are integrally bonded to each other over a beam-welded joint region (3) in which at least the material of the support portion (2) has been melted under the effect of an energy beam. A percentage of the ductile metal binder in the hard metal amounts to a maximum of 8 wt %.
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
An indexable double-sided milling cutting insert (1), the milling cutting insert (1) comprising: - a top surface (2) and a bottom surface (3), - a through-bore (4) coaxial to a first symmetry axis (X) intersecting the top surface (2) and the bottom surface (3), - a median plane (YZ) extending perpendicularly to the first symmetry axis (X) and virtually dividing the cutting insert (1) into two halves, - two major side surfaces (5), - two minor side surfaces (6), - four main cutting edges (7) formed at the respective transitions of the top surface (2) and the bottom surface (3) with the major side surfaces (5), - four secondary cutting edges (8) formed at the respective transitions of the top surface (2) and the bottom surface (3) with the minor side surfaces (6), - two cutting comers (9) on each of the top surface (2) and the bottom surface (3), the cutting corners (9) being formed between the main cutting edges (7) and the secondary cutting edges (8), the cutting comers (9) being arranged diagonally opposite with respect to the symmetry axis (X), - two secondary corners (18) on each of the top surface (2) and the bottom surface (3), - planar axial support surfaces (10) formed on each of the minor side surfaces (6), wherein - in a top view of the cutting insert (1) - an axial support surface (10) confines an interior angle (a) < 90° with that major side surface (5), which is connected to that minor side surface (6) that carries said axial support surface (10), via a cutting corner (9), wherein adjacent to the axial support surface (10) an inwardly curved recess (14) is formed on the minor side surfaces (6).
The invention relates to a self-centring cutting head (1) for attaching to a front-side end of a tool shaft (10) in a bonded manner, comprising: a connecting region (2) extending transversely in relation to a pre-defined axis of rotation (R) of the cutting head (1), for connection, in a bonded manner, to a front side (11) of the tool shaft (10), which is complementary to the connecting region (2). The connecting region (2) is free of a central centring projection and has at least two centring surfaces (3) that are arranged such that they are tilted in relation to each other, in such a way that lateral abutment surfaces (4) are formed, which prevent a rotation of the cutting head (1) about the axis of rotation (R) in relation to the tool shaft (11) at least in the opposite direction to a working direction, such that the cutting head (1) is centred in a plane (XY) perpendicular to the axis of rotation (R) during cooperation with the front side (11) of the tool shaft. The abutment surfaces (4) have a normal to the surface (N4) with a direction component in a tangential direction (T) as the main direction component.
The invention relates to a tool cutting body (10) for soldering to a tool base body (1) made of steel. The tool cutting body (10) has a working region made of a silicon-containing ceramic and a connecting region made of a WC based hard metal, a Mo base material or a W base material. The working region and the connecting region are bonded together at at least two surface regions of the ceramic, which are not parallel to one another. The connecting region has at least one joining surface for integrally bonding by soldering with a tool base body (1).
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 1/19 - Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
B23D 61/04 - Circular saw blades with inserted saw teeth
B23B 27/14 - Cutting tools of which the bits or tips are of special material
B23B 27/18 - Cutting tools of which the bits or tips are of special material with cutting bits or tips rigidly mounted, e.g. by brazing
B23K 101/00 - Articles made by soldering, welding or cutting
The invention relates to a drill head (1) of a hard material for a drilling tool (2), wherein the drill head (1) has at least one suction opening (4) at a working end (3), via which suction opening drill cuttings can be suctioned, and the drill head (1) also has a central channel (5), which can be connected to a suction device (8) via an outlet opening (7) located at a work-distant end (6) of the drill head (1), wherein the suction openings (4) are connected to the central channel (5) via respective inlet channels (9) formed in the drill head (1).
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
E21B 10/38 - Percussion drill bits characterised by conduits or nozzles for drilling fluids
B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhereMachines, devices, tools therefor by boring or drilling
A milling cutting insert has a substantially triangular shape. The cutting insert contains a top side, an underside, and circumferential side surfaces extending between the top side and the underside. Cutting edges are formed at the transition of the circumferential side surfaces to the top side and/or the underside. On the circumferential side surfaces at least two discrete planar abutment surfaces are formed for positioning the cutting insert in a tool holder. The at least two discrete planar abutment surfaces are inclined with respect to each other at an outer angle of between 190° and 220° and the abutment surfaces are spaced from each other with respect to the circumferential direction of the cutting insert.
A double-sided milling cutting insert has a first cutting edge disposed at an intersection of a top side and a side surface and a second cutting edge disposed at an intersection of a bottom side and the side surface. Each of the first and second cutting edges contains three cutting edge portions which are useable by indexing. The cutting edge portions each have a cutting corner, a main cutting edge adjacent to one side of the cutting corner, and a wiper edge adjacent to the other side of the cutting corner. The main cutting edge and the wiper edge are each inclined towards a reference plane with increasing distance from the cutting corner such that the first and second cutting edges have the largest distance to the reference plane in the regions of the cutting corners. The side surface has main clearance surfaces, secondary clearance surfaces, and curved corner surfaces.
A spherically shaped wear part made from a cermet material is provided. The cermet material is a Ti(C, N)-based cermet comprising hard Ti(Cy, Nz) grains, with y > 0, z ≥ 0 and y + z ≤ 1, embedded in a ductile binder phase formed by a Ni-base alloy, a Co-base alloy, or a Fe-base alloy. The Ti(C, N) grains have a mean grain size in the range between 0.2 μrm and 3.0 μrm.
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B43K 1/08 - NibsWriting- points with ball pointsBalls or ball beds
C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
C22C 29/04 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
34.
DOUBLE-SIDED MILLING CUTTING INSERT AND MILLING TOOL
A double-sided milling cutting insert (1 ) is provided, having a first cutting edge (5) arranged at an intersection of a top side (2) and a side surface (4), a second cutting edge (6) arranged at an intersection of a bottom side (3) and the side surface (4); each of the first and second cutting edges (5, 6) comprising three cutting edge portions (7) which are subsequently useable by indexing, the cutting edge portions (7) each comprising a cutting corner (53), a main cutting edge (50) adjacent to one side of the cutting corner (53), and a wiper edge (51) adjacent to the other side of the cutting corner (53). The main cutting edge (50) and the wiper edge (51) are each inclined towards the reference plane (XY) with increasing distance from the cutting corner (53) such that the first and second cutting edges (5, 6) have the largest distance to the reference plane (XY) in the regions of the cutting corners (53). The side surface (4) comprises a plurality of main clearance surfaces (40), a plurality of secondary clearance surfaces (41 ), and a plurality of curved corner surfaces (43). The curved corner surfaces (43) adjacent to the first cutting edge (5) transform into the secondary clearance surfaces (41) adjacent to the second cutting edge (6) via transitional surfaces (42) such that the curved corner surfaces (43) protrude further to the outside than the secondary clearance surfaces (41).
An indexable double-sided milling cutting insert (1) is provided which comprises: a top surface (2), a bottom surface (3), a through-bore (5) coaxial to a first symmetry axis (X) intersecting the top surface (2) and the bottom surface (3), a plurality of side surfaces (4a, 4c), a median plane (YZ) extending perpendicular to the first symmetry axis (X) and virtually dividing the cutting insert into two halves, a first edge line (6a) at the intersection of the top surface with the plurality of side surfaces (4a, 4c), and a second edge line (6b) at the intersection of the bottom surface with the plurality of side surfaces (4a, 4c). Each of the first edge line (6a) and the second edge line (6b) comprise: first and second primary major corners (7a, 7b), first and second secondary major corners (8a, 8b), first and second minor corners (9a, 9b), first and second main cutting edges (10a, 10b), first and second secondary cutting edges (11a, 11b), and first and second support edges (12a, 12b). The top and bottom surfaces (2, 3) each comprise a first seat surface region (13a) extending to the first support edge (12a) and a second seat surface region (13b) extending to the second support edge (12b).
A milling tool holder (20) is provided, having a rotational axis (R) about which the milling tool holder (20) is rotatable for milling and comprising a plurality of cutting insert receiving pockets (23) adapted for mounting a plurality of oval-shaped indexable cutting inserts (1). The cutting insert receiving pockets (23) are adapted such that the oval-shaped cutting inserts (1) are mountable spaced apart from the rotational axis (R).
The invention relates to a cutting insert (10) which has an insert body (20) having a substantially circular cross section, wherein the insert body (20) has a front surface (22), a rear surface (24) and a surrounding lateral surface (26) which connects the front surface (22) and the rear surface (24), wherein the lateral surface (26) has at least one facet (30) which extends to the front surface (22), wherein at least one cutting edge (40) is formed at the interface between the front surface (22) and at least one facet (30) of the lateral surface (26).
A set of cutter inserts for milling applications is provided. The set has a plurality of differently shaped round cutter inserts, each of which has: a top surface (21), a bottom surface (22) and a lateral surface (23) which connects the top surface (21) and the bottom surface (22). A cutting edge (24) is formed at a cutting point between the top surface (21) and the lateral surface (23). A first section of the lateral surface (23), which borders the cutting edge (24), is formed as a clearance surface (26). A plurality of contact surfaces (27) are formed in the lateral surface (23) in order to contact corresponding pocket walls holding the insert in a milling tool holder, wherein the contact surfaces (27) are equally spaced so as to enable a 4n-times indexing with n ∈ {1; 2}. The corresponding contact surfaces (27) of the various round cutter inserts in the set are arranged at corresponding positions and with corresponding orientations.
The invention relates to a hard-material sawtooth (1) comprising: a rake face (2), a main flank (3), two secondary flanks (4) formed on opposite faces of the hard material sawtooth, a main cutting edge (5) formed between the rake face (2) and the main flank (3), and two secondary cutting edges (6) formed between the rake face (2) and the secondary flanks (4). The main flank (3) has a first main flank (3a) that adjoins the main cutting edge (5) and a second main flank (3b) which is arranged on the first main flank (3a) side further away from the main cutting edge (5). The second main flank (3b) is designed so as to be offset relative to the first main flank (3a) via a step (3c).
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