175results about "Milling tools" patented technology

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 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.

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

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.

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.

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.

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).

A precision milling method for an aluminum matrix silicon carbide particle composite material, which is a milling method for a low volume fraction annealed silicon carbide particle reinforced aluminum matrix composite material. The milling process is divided into rough machining and finish machining: Use a two-flute milling cutter with a diameter of 10 mm to perform rough machining on the original surface. At this time, the machining depth should be controlled between 0.5 mm and 1 mm as much as possible, and it is completed in 5 to 10 times to reduce cutting heat. The rough machining is mainly to level the machining surface. After rough machining, enter finish machining. An oil film is formed on the machining surface to play a role in lubrication and wear reduction, and assist the tool to remove the chips attached to the machining surface. After the oil, water and vapor are vaporized, a large amount of cutting heat is carried away, improving the tool life and surface accuracy. After machining is completed, the workpiece needs to be placed in natural conditions for half a year to reduce residual stress. The method of the present invention effectively improves the tool life, reduces the processing cost, helps energy conservation and emission reduction, and effectively avoids waste.

A cutting tool according to one aspect of the present disclosure includes a shaft portion and cutting edge portions. The main cutting edge portions have a main cutting edge. In a section within ±30% of a blade length of a region from a center of the region in a direction along the central axis, the main cutting edge portions have first and second nick portions. The main cutting edge portions are formed in the region. The relationship between the first nick portion and the second nick portion satisfies at least one of a first condition and a second condition. The first condition is that a width of the first nick portion is different from a width of the second nick portion. The second condition is that a depth of the first nick portion is different from a depth of the second nick portion.

The present invention provides a rotary tool having a plurality of main flutes extending helically about the longitudinal axis and a plurality of sets of auxiliary flutes that extend helically opposite hand from the main flutes about the longitudinal axis, wherein the sets of auxiliary flutes comprise a first auxiliary flute closer along the longitudinal axis to the shank end and a final auxiliary flute closer along the longitudinal axis to the front end that each intersect the main flutes to form a plurality of cutting units having a first cutting edge facing the direction of rotation along the main flute and a second cutting edge facing the direction of rotation along the auxiliary flute. Also disclosed are methods of making the rotary tool and methods of milling a substrate using the rotary tool.

A replaceable blade (1) is used for cutting a workpiece made of nonferrous metals, nonferrous metal alloys, wood, woody materials, or resin. A coating (14) is provided to cover a base material (10). The coating (14) is provided on a flank (3) of a cutting edge (5) at an intersection of a rake face (4) and the flank (3), and the coating (14) has a columnar structure rising from the base material (10). The base material making the coating (14) includes one or more of chromium nitride, oxynitride, oxide, carbide, carboxide, carbonitride, and carboxynitride.

A method involves processing multiple workpieces, each composed of a material with a machinable surface characterized by distinct compressive and tensile regions. In at least one workpiece, the compressive region exhibits greater strength than the tensile region, while in at least one other workpiece, the tensile region is stronger than the compressive region. The method includes selecting a workpiece from this group, ensuring that the chosen workpiece is made of a material different from at least one of the other workpieces. A set of opto-mechanical tools is prepared, and from this set, a tool is selected based on its rake angle, specifically choosing a tool with a midrange rake angle between approximately 136° and 165°. This selected tool is used to machine the chosen workpiece.

A coated tool of the present invention includes a base material; and a hard coating film on the base material. The hard coating film is a nitride or carbonitride which contains aluminum (Al) of 65 atomic % or more and 90 atomic % or less and titanium (Ti) of 10 atomic % or more and 35 atomic % or less with respect to a total amount of metal (including metalloid) elements, and have a face-centered cubic structure. In the X-ray intensity distribution of the α axis of the positive pole figure with respect to the (111) plane of the face-centered cubic structure, the hard coating film have a maximum intensity Ia in the α angle range of 80° to 90° and an intensity in the α angle range of 0° to 70° is 30% or less of the Ia.

The present invention relates to a tool (100) for machining a workpiece (200). The tool (100) comprises a surface (110) at least partially covered by a wear-resistant coating (120) deposited by PVD. The wear-resistant coating (120) comprises one or more wear-resistant layers (121, 122). The coating has an elastic modulus E of 300 GPa≦E<350 GPa and a hardness H of more than 30 GPa.

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 discloses a wear-resistant cutter suitable for titanium and titanium alloy machining and a preparation method of the wear-resistant cutter, and relates to the technical field of surface coatings. The wear-resistant cutter coating sequentially comprises a Ti layer, a nano-multilayer structure TiB2 / ZrB2 layer and a ZrB2 surface layer from inside to outside, the Ti layer is formed by deposition through an evaporation plating or magnetron sputtering method, the nano-multilayer structure TiB2 / ZrB2 layer and the ZrB2 surface layer are formed by deposition through a magnetron sputtering method, the coatings of the three parts have different microstructures and effects, and the three parts are an organic whole with a synergistic effect. The wear-resistant cutter coating has excellent wear resistance and good cutter sticking resistance, and is suitable for milling titanium and titanium alloy under medium and high speed conditions.

The invention provides a heat-cold source cooperative auxiliary milling method, and relates to the technical field of steel milling, and the method specifically comprises the following steps: preheating a to-be-processed surface of a to-be-processed workpiece through an induction heat source; the temperature of a cutting area is controlled through the low-temperature-minimum quantity lubrication equipment when the tool is in contact with the workpiece to be machined; and the workpiece to be machined is further milled according to the preset feeding speed, the preset cutter spindle rotating speed, the preset milling width and the preset milling depth. According to the scheme, the induction heat source and the low-temperature-minimum quantity lubrication equipment have a synergistic effect on the milling machining process of the steel workpiece at the same time, so that the milling machining efficiency and machining quality of the steel workpiece are improved.

The invention discloses an improved measuring tool and method for testing machining deformation of an aluminum alloy thick plate through a layer stripping method, and relates to the technical field of metal material machining deformation detection. The measuring tool comprises a base plate, a limiting assembly, a bottom baffle, a dial indicator and at least two side baffles; the reference surface of the part is contacted with the bottom block, the limiting assembly limits the movement range of the part to be measured, and the center of the measurement rolling surface of the part to be measured is aligned with the dial indicator to complete measurement by adjusting the relative position of the side block and the bottom block. The problem that in the prior art, the measurement error of a delamination method deformation testing method for milling an aluminum alloy thick plate layer by layer is large is solved.

A cutting tool (1; 101) comprising: a base element (10; 110), a diamond layer (11; 111) arranged on the base element (10; 110), and a first surface (8; 108), a second surface (9; 109) and a cutting edge (4, 5; 105) which is arranged at least in part of a ridge line at which the first surface (8; 108) intersects the second surface (9; 109), wherein the diamond layer (11; 111) is arranged in at least a part of the first surface (8; 108), at least a part of the second surface (9; 109) and at least a part of the cutting edge (4, 5; 105) and a maximum height in the cutting edge (4, 5; 105) is smaller than a maximum height in the first surface (8; 108) and the maximum height in the cutting edge (4, 5; 105) is greater than a maximum height in the second surface (9; 109), wherein in the cutting edge (4, 5; 105) the maximum height is 0.3 to 0.7 µm and an arithmetic mean roughness is 0.06 to 0.1 µm, in the first surface (8; 108) the maximum height is 0.8 to 1.4 µm and an arithmetic mean roughness is 0.1 to 0.25 µm and in the second surface (9; 109) the maximum height is 0.1 to 0.5 µm and an arithmetic mean roughness is 0.04 to 0.08 µm, wherein the cutting edge (4, 5; 105) has a convex-curved surface shape in a cross-section orthogonal to the ridge line, and the cutting edge (4, 5; 105) has a plurality of grooves (13) in a direction which intersects the ridge line, and wherein the plurality of grooves (13) are orthogonal to the ridge line.

The invention relates to a beryllium copper mirror surface machining method based on a CNC high-speed machining center. The beryllium copper mirror surface machining method comprises the steps that S1, a beryllium copper semi-finished plate and part shape data are prepared; s2, the beryllium copper semi-finished plate is milled into a beryllium copper blank part with the rough machining size through a CNC high-speed machining center; s3, the beryllium copper blank part is pressed and fixed to a magnetic table through a bed mould; S4, the bed mould connected with the beryllium copper blank part is fixed to a sine magnetic table; s5, straightening the reference surface of the beryllium copper blank part by using a dial indicator; s6, the CNC machine tool is placed in the X-axis direction of the machine tool coordinate system; s7, after the coordinate system of the machine tool is determined, a machining tool D6R3 (PVD) is called for measurement; s8, finish machining is conducted according to the standard size data of the part through a polycrystalline diamond milling cutter; s9, after finish machining, the surface quality of the beryllium copper part reaches N2, RZ 0.25 mu m; the machining method has the advantages that the machined surface quality reaches the N2, RZ0.25 micron mirror surface effect, and the optical requirement of the automobile lamp is met.

The present invention relates to a tool (100) for machining workpieces (200), comprising a surface (110) which is at least partially covered by a PVD deposited wear-resistant coating (120), said wear resistant coating (120) comprising one or more wear-resistant layers (121, 122), the coating having a modulus of elasticity, E, which is in a range 300 GPa≤E<350 GPa, and further having a hardness, H, which is greater than 30 GPa.