252results about "Milling tools" patented technology

A method of manufacturing a part includes removing material with a cutting machine (11) to form a plurality of segments (13A-13D, 14A-14D, 15A-15D), at least two of the segments including an anchoring structure, connecting two or more segments to form a first layer, and connecting two or more additional segments to form a second layer. The method also includes connecting the first layer to the second layer and connecting a support structure directly to two of the anchoring structures.

The invention provides a preparation method of a wear-resistant and strength-coordinated hard alloy product. The method comprises the following steps: (1) hard phase pretreatment: mixing tungsten carbide powder with a yttrium-stabilized zirconia precursor solution; (2) nano coating modification: placing the mixed material in a planetary ball mill for ball milling to obtain yttrium-stabilized zirconium oxide coated tungsten carbide composite powder; (3) preparing a binding phase; (4) mixing and pressing; (5) performing gradient sintering to obtain a sintered body; and (6) the sintered body is placed in a vacuum furnace to be subjected to aftertreatment, and the wear-resistant and strength-coordinated hard alloy product is obtained. Through multi-dimensional innovation of material proportion innovation, process optimization and equipment improvement, the technical problems of traditional hard alloy in the aspects of hardness and toughness balance, high-temperature performance stability, production cost control and the like are successfully solved, and a hard alloy solution which is excellent in performance and economical and feasible is provided for the field of high-end equipment manufacturing.

The invention discloses a titanium alloy material cutting tool and a machining method, and the machining method comprises the following steps: proportioning a hard phase WC, a binding phase and an additive according to a ratio, carrying out ball milling, spray drying and compression molding to obtain a tool blank, carrying out segmented sintering treatment, machining and molding to obtain the cutting tool, and then carrying out heat treatment to obtain the titanium alloy material cutting tool. Sequentially carrying out electromagnetic coupling strengthening treatment and surface coating plating treatment to form a TiN layer, a CrAlN layer, a CrAlSiN layer and a CrAlBN layer; the titanium-based alloy powder is added into the binding phase, so that the high-temperature strength, the heat resistance and the lightweight characteristic of the cutting tool can be enhanced; the modified CeO2 can improve the microstructure uniformity, the interface bonding force and the oxidation resistance of the cutter, so that the density and the crack resistance are improved; electromagnetic coupling strengthening treatment and multi-layer coating deposition treatment are carried out on the cutting tool, the hardness, wear resistance, oxidation resistance and high temperature resistance of the surface of the tool can be remarkably improved, and meanwhile coating stripping is effectively prevented.

The present invention provides a process of forming a cutting tool comprising the steps of: additive deposition of a tool material comprising at least one of: tungsten carbide, TaNbC, a tungsten carbide containing alloy or composite, or a TaNbC containing alloy or composite onto a base substrate having a longitudinal axis, said tool material being deposited onto the base substrate to form a deposit body configured to form at least one cutting formation therein; and subsequently subtracting selected portions of the deposit body to produce at least one cutting formation having a selected cutting edge configuration, thereby forming the cutting tool.

The invention relates to the technical field of coated cutters, and provides a cutting tool with a high-hardness self-lubricating coating and a preparation method of the cutting tool. The cutting tool comprises a tool base body and the coating formed on the tool base body; the coating is of a multi-layer structure and sequentially comprises a first sub-coating, a first gradient layer, a second sub-coating, a second gradient layer and a third sub-coating from inside to outside. The content of Si in the first gradient layer is increased in a gradient mode from inside to outside and is not higher than the content of Si in the second sub-coating; the content of B in the second gradient layer is increased in a gradient mode from inside to outside and is not higher than the content of B in the third sub-coating.

The invention relates to the technical field of coated cutting tools, and provides a chemical vapor deposition hafnium boride multilayer coated cutting tool and a preparation method thereof.The chemical vapor deposition hafnium boride multilayer coated cutting tool comprises a base body and multiple coatings sequentially arranged on the surface of the base body; the multi-layer coating comprises a first sub-coating HfBN layer and a second sub-coating HfBx layer, and x is larger than or equal to 1.8 and smaller than or equal to 2.2; the first sub-coating HfBN layer is composed of HfB2, HfN and a BN phase, the volume fraction of the HfB2 phase is 60-90%, and the first sub-coating HfBN layer grows in a columnar crystal mode; the second sub-coating HfBx layer grows in a columnar crystal mode, and the grain size of the second sub-coating HfBx layer is larger than that of the first sub-coating HfBN layer. The high-wear-resistance and low-friction-coefficient cutting fluid has high wear resistance, high bonding strength, high adhesion resistance and low friction coefficient, so that the cutting machining requirements of difficult-to-machine materials such as stainless steel, titanium alloy and nickel-based high-temperature alloy are met.

A coated cutting tool for metal machining has a base body of cemented carbide, cermet, ceramics, steel or high-speed steel, and a wear resistant coating deposited thereon. The coating includes a layer of Ti1-xAlxCyNz with 0.40≤x≤0.95, 0≤y≤0.10 and 0.85≤z≤1.15, and a portion of MeCaNb, 0≤a≤1, 0≤b≤1, a+b=1, present on the layer of Ti1-xAlxCyNz. The portion of MeCaNb covers from 5 to 28% of the layer of Ti1-xAlxCyNz. A process for the production of the coated cutting tool and the use of the coated cutting tool in machining of stainless steel is also provided.

The invention is suitable for the technical field of milling cutter machining, and provides a hard alloy milling cutter cutting edge passivation process which comprises the following steps that a passivation solution containing Fe < 3 + > and Zn < 2 + > is prepared, and the passivation solution comprises abrasive particles and a nanometer reinforcing phase; the tool is immersed in a passivation solution to be subjected to chemical-mechanical composite treatment; the cutting edge is subjected to plasma impact treatment; a cutting edge grain boundary is reconstructed through laser irradiation, and atomic-scale reconstruction of the hard alloy cutting edge and multi-scale optimization of structure strengthening are achieved through combination of a chemical-mechanical-energy field composite effect, a metal ion passivation reaction and plasma / laser modification and cooperation of metal ion selective passivation, grain boundary engineering regulation and control and nanometer enhancement. On the basis of chemical passivation, the mechanical performance of the cutting edge of the milling cutter is improved through a composite passivation film generated through Fe < 3 + > / Zn < 2 + > reaction, plasma impact and laser reconstruction are coupled through an energy field, the problems of microdefects and grain boundary weakening are solved respectively, and the strength of the cutting edge is further improved through the synergistic effect of the three.

To provide methods and systems for secure connections in individual layer segments connected to each other from one end to the other end.SOLUTION: A method of manufacturing a part with a plurality of cut segments includes receiving a sheet of material with a machining apparatus, removing material with the machining apparatus to form a plurality of segments in the sheet of material, and forming complementary shapes in ends of two or more segments of the plurality of segments. The method further includes forming slots in the two or more segments, aligning the slots in the two or more segments to form a cavity, and inserting a connecting device to fill the cavity.SELECTED DRAWING: Figure 2A

The invention belongs to the technical field of hard alloy material preparation, and relates to a high-hardness and high-strength hard alloy coating blade which comprises a base body and a coating. The matrix raw materials comprise the following components in percentage by weight: 89-90% of tungsten carbide WC, 6-7% of Co, 1-3% of a tungsten-titanium solid solution and 1-3% of a tantalum-niobium solid solution; the coating comprises an AlTiN substrate layer, a TiAlSiN functional layer and a TiSiN surface layer. The high-hardness and high-strength hard alloy matrix is prepared by adding the reinforcing solvent, and the coating with the specific gradient composite structure is deposited by combining the arc ion plating technology, so that the internal defects of the coating are reduced, the internal stress of the coating is reduced, the toughness and the film-substrate binding force of the coating are improved, and the coating is uniform and compact, has high hardness and high-temperature oxidation resistance, and can be applied to the field of high-temperature-resistant coating. The service life of the blade is greatly prolonged through good matching of the coating and the blade base body.

A method for producing a cutting tool including a tool body including a hard coating, the method comprising: applying the hard coating to the tool body at least in an area of a cutting edge, a flank, and a chipping surface; depositing the hard coating on a surface of the tool body, of the cutting tool in an area of the cutting edge, of the flank adjacent to the cutting edge, and of the chipping surface adjacent to the cutting edge; sharpening the cutting edge that is provided with the hard coating and that forms a dull rounded edge by partially removing the hard coating in the area of the flank of the cutting edge by laser machining to form a sharpened cutting edge so that an angle δ is enclosed between a first geometric plane in which a surface of the tool body extends.

A cutting insert includes a first and a second pair of opposing side surfaces. As seen towards a first side surface, a first axial relief face and a first axial abutment face form part of a first surface grouping on a first side of a longitudinal plane. As seen towards a second side surface, a second axial relief face and a second axial abutment face form part of a second surface grouping on the first side of the longitudinal plane. The first axial abutment face forms a substantially flat surface and extends perpendicularly to a median plane of the insert. The second axial abutment face forms a substantially flat surface and extends perpendicularly to the median plane. A second side surface of the first pair of opposing side surfaces has a first and a second radial abutment face.

Milling tool (1) for face milling the end face of a pipe end, comprising one or more cutting edges (2) which extend in a cutting plane perpendicular to a designated axis of rotation (R) of the milling tool (1), wherein a guide body (3) projects from the cutting edge(s) (2) at the center of the milling tool (1) perpendicular to the cutting plane, the outer contour of which is designed such that the guide body (3) can be inserted into a cylindrical pipe with a circular cross-section of a certain diameter to be machined with the milling tool (1) and thereby aligns the milling tool (1) with respect to the pipe such that the axis of rotation (R) of the milling tool (1) coincides substantially with a central longitudinal axis of the pipe. wherein the milling tool (1) has a base body (5) for driving the cutting edges (2), which carries a cutting edge body (6) which is in particular replaceable and provides the cutting edges (2), wherein the base body (5) additionally carries the guide body (3), and wherein the base body (5) passes through the cutting body (6) and the guide body (3).

A rotary cutting tool includes a tool body including a shank portion and a cutting portion adjoining the shank portion. The cutting portion has a plurality of blades separated by helically twisted flutes. A tunable vibration absorber is disposed within an internal cavity formed in the cutting portion and has a shape that follows the helically twisted flutes. The tunable vibration absorber includes an absorber mass and a resilient material disposed between the absorber mass and an outer wall of the internal cavity. In one aspect, the tunable vibration absorber is tuned to a desired frequency by selecting the mechanical properties of the absorber mass and the resilient material. In another aspect, the tunable vibration absorber is tuned by controlling a pressure of fluid within a main internal fluid cavity disposed within the tunable vibration absorber.

A cemented carbide includes second hard phase grains each including a carbonitride containing Ti and Nb, wherein each of the second hard phase grains includes a core portion, the core portion is composed of a composite carbonitride represented by (Ti1-X-ZNbXMZC1-YNY), the M is at least one impurity element selected from a group consisting of V, Cr, and Mo, the X is more than or equal to 0.1 and less than or equal to 0.2, the Y is more than or equal to 0.3 and less than or equal to 0.6, the Z is more than or equal to 0 and less than or equal to 0.02, and in a case where a total of 70 unit regions that are each constituted of a square having each side of 8 µm are provided by successively arranging 7 unit regions in a longitudinal direction and 10 unit regions in a lateral direction in an electron microscope image of any cross section of the cemented carbide captured at a magnification of 1500x, where the total number of core portions in the total of 70 unit regions is calculated by counting the number of core portions in each of the unit regions, and where a percentage of the number of core portions in each of the unit regions with respect to the total number of core portions is calculated, the number of unit regions in which the percentage is less than 0.43% or more than 2.43% is less than or equal to 10.

A method of manufacturing a part includes removing material with a cutting machine to form a plurality of segments, at least two of the segments including an anchoring structure, connecting two or more segments to form a first layer, and connecting two or more additional segments to form a second layer. The method also includes connecting the first layer to the second layer and connecting a support structure directly to two of the anchoring structures.

The invention relates to the technical field of part machining, and discloses a multi-station anti-vibration cutter stabilizing mechanism for carbon fiber part machining, which comprises a cutter chuck arranged on machining equipment; the milling cutter is used for machining parts; and the clamping mechanism is arranged on the cutter chuck and used for stably clamping the milling cutter, the clamping mechanism comprises a hollow sleeving ring, and the hollow sleeving ring axially moves after rotating. According to the multi-station anti-vibration cutter stabilizing mechanism for machining the carbon fiber parts, the positioning mechanism is arranged, and an axial hard positioning structure capable of being locked is arranged at the end of a milling cutter, so that end mechanical jacking and position locking are synchronously achieved after radial clamping of the cutter is completed, and the overall axial supporting rigidity of the cutter is remarkably improved; axial micro-motion and chatter caused by axial cutting force change and multi-station frequent reversing in the carbon fiber machining process are effectively restrained, and the quality defects such as layering and chatter marks on the machined surface are avoided.

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.

A cutter assembly for a cutting tool has a super-hard volume of super-hard material having a proximal end and a distal end and including a cavity; and a cover member. The super-hard volume has a super-hard surface at the distal end including a cutting edge. The cavity has a cavity open end at the distal end. The super-hard surface includes a cavity peripheral area coterminous with the cavity open end and the cover member has a cover peripheral area configured to mate with the cavity peripheral area to allow the cover member to cover the cavity at the cavity open end, the covered cavity providing a housing chamber within the super-hard volume. A method of making a cutter assembly is also disclosed.

Provided is an end mill having a cutting edge section having a convex shape having one curved surface obtained by dividing a tapered body by a plane, the tapered body having a tip section and a circular bottom surface, the tip of the tip section being located on a center line penetrating through the center of the bottom surface, the tapered body having a circumferential side surface, and the circumferential side surface being located on the circumferential side surface. The circumferential side surface includes an expanded-diameter region having a larger diameter than the bottom surface, and the plane includes the centerline.

The invention is a vertical sleeve opening machine (10) for opening an angled groove into the couplings (sleeves) used in joining glass fiber reinforced polyester (GRP) pipes with each other, wherein; it comprises the vertical processing power motor (12) which powers the power transmission box (14) to rotate the milling tool (15), the reverse angled milling tools (15) connected to the vertical processing power motor (12) for opening a reverse angled channel all around the inside of the coupling, the power transmission box (14) that drives the reverse angled milling tools (15), after the milling tool (15) reaches the base point and opens a channel into the coupling at the desired depth, the horizontal linear motion device (13) moves horizontally (right and left) to open an angled channel.

A method for producing a cutting tool is proposed, wherein the cutting tool has a tool body with a hard coating (2) and the hard coating (2) is applied to the tool body (1) at least in the region of a cutting edge (10, 14, 14a, 43), of a flank (5, 25, 45) and of a rake face (6, 26, 46). First of all, a hard coating (2) is applied to the workpiece on the surface of the tool body (1) of the cutting tool in the region of the cutting edge (3, 23, 43), of the flank (5, 25, 45) adjacent to the cutting edge (3, 23, 43), and of the rake face (6, 26, 46) adjacent to the cutting edge (3, 23, 43). Then, for sharpening the cutting edge, the hard coating on the flank is partially removed by means of laser machining in such a way that, for an angle (δ) between a first geometric plane (16, 36), in which the surface (9) of the tool body (1) situated below the hard coating (2) of the flank (5, 25, 45) extends, and a second geometric plane (18, 38), in which a surface (8, 28) of the hard coating (2) delimited by the sharpened cutting edge (10, 14, 43) extends in the region of the flank (5, 25, 45) after the removal operation, the following holds: 1° ≤ δ ≤ 70.

The invention relates to a tool (1) for removing material from a surface, comprising a substantially cylindrical base body with a rotational axis (3) and a shank section for clamping the tool in a machine tool and a cutting section (2) opposite the shank section, wherein the cutting section has at least two areas arranged symmetrically from the tool axis, comprising a first section located further away from the tool axis, in the edge region of the cutting section, a second section comprising a cutting milling edge, and a third section located closer to the tool axis, which is formed convexly, radially sloping towards the tool axis from the second section.

The high-flux preparation device comprises a reaction cavity, a vacuum control system and a gas path control system are arranged on the reaction cavity, a bias voltage power supply is arranged on the reaction cavity, an extraction opening and a working gas input opening are formed in the reaction cavity, and the vacuum control system, the gas path control system, the bias voltage power supply, the extraction opening and the working gas input opening are arranged on the reaction cavity. The four-target closed field unbalanced magnetron sputtering system comprises a cylindrical vacuum chamber, two groups of carbon target materials are arranged on the side wall of the cylindrical vacuum chamber, the carbon target materials form a closed field unbalanced system, the input end of the first group of carbon target materials is connected with the output end of a pulse direct current magnetron sputtering power supply, and the input end of the second group of carbon target materials is connected with the output end of a pulse direct current magnetron sputtering power supply. And the input end of the second group of carbon target materials is connected with the output end of the high-power pulse magnetron sputtering power supply. According to the method, the performance of the coating can be accurately controlled by regulating and controlling the parameters of the micropulses, the deposition rate is high, operation is easy and convenient, cost is low, and in addition, flammable and explosive acetylene gas is not adopted, so that the method is safer and more reliable.

A method of manufacturing a part with a plurality of cut segments includes receiving a sheet of material with a machining apparatus and removing material during one or more first passes with the machining apparatus to form a plurality of segments in the sheet of material. The method also includes forming a tab by removing material during the one or more first passes with the machining apparatus for forming the segments, the tab connecting two segments within the sheet of material to each other and removing material with the machining apparatus to form joints on the segments.

The invention relates to a milling tool (10) for machining a workpiece (12), in particular for producing a blind hole (16) in a workpiece (12), comprising a ball-shaped end section (20) with at least one cutting edge (22), wherein the ball-shaped end section (20) has a centering element (26) for centering the milling tool (10) during the machining of the workpiece (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 milling cutter comprising: a tool shank (12) having a longitudinal axis of rotation; and a tool head (16) attached to one end of the tool shank, the tool head comprising first, second and third tiers (18a, 18b, 18c) extending around an outer surface of the tool head; wherein the tiers are axially displaced from each other along the longitudinal axis; wherein the first tier of the tool head comprises a plurality of axially extending first cutting surfaces, each first cutting surface having a first profile; the second tier of the tool head comprises a plurality of axially extending second cutting surfaces, each second cutting surface having a second profile; and the third tier of the tool head comprises a plurality of axially extending third cutting surfaces, each third cutting surface having a third profile; wherein the first tier is closer to the tool shank than the second tier; and wherein the third tier is further from the tool shank than the first tier and the second tier; wherein, when the first, second and third profiles are superimposed, the first profile nests within the second profile, and the second profile nests within the third profile; wherein the first profile differs from the second profile, and wherein the third profile differs from the first profile and the second profile; and wherein the first, second and third cutting surfaces comprise superhard material.

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).

An end mill (1) is provided with a cutting edge section (3) that rotates about a central axis (O) and a shank (2), and has an end cutting edge (11) that is positioned on the tip surface of the cutting edge section (10) and an outer peripheral cutting edge (13) that is positioned on the outer peripheral surface of the cutting edge section (10), the end cutting edge (11) having an end cutting edge outer peripheral section (11a). The end edge outer peripheral section (11a) extends toward the shank side from the outer peripheral end of the end edge toward the inside in the radial direction at an inclination angle (alpha) of 3 DEG or less with respect to a plane orthogonal to the center axis (O), and the relief angle of an end edge outer peripheral section first flank surface (14a) adjacent to the end edge outer peripheral section (11a) is larger than the relief angle of an outer peripheral section first flank surface (14a) adjacent to the outer peripheral edge (13). The width (W2) of the first flank surface of the outer peripheral part of the end blade is larger than the width (W1) of the first flank surface of the outer peripheral blade.