449 results about "Machinability" patented technology

The quick tool changing device convenient for motor part machining comprises a main tool body, blade grooves are formed in the two ends of a rotating body, and turning blades are fixed in the blade grooves through locking screws; a cylinder at the bottom of the rotating body is in clearance fit with a tool pad and a hole in the main tool body, the main tool body is provided with a cylindrical ejector rod, and the cylinder at the bottom of the rotating body abuts against the cylindrical ejector rod and is locked through a bolt on the outer side of the main tool body. A key is arranged below the rotating body and is in contact positioning with a key groove in the plane of the cutter pad, and the main cutter body internally comprises an upper spraying pipe on the upper portion of the main cutter body and a lower spraying opening in the front end of the main cutter body. An inner cooling device in the main cutter body sprays cooling liquid to the cutting edge through an upper spraying pipe and a lower spraying opening, the problem of machining overheating is solved, the cutting performance is improved, cuttings can be washed away through high-pressure cooling water, and the problem of long cuttings is solved; and the rotating body with the positioning key can realize a quick tool changing function.

The invention relates to the technical field of lathe numerical control, in particular to a lathe digital intelligent management method and system based on industrial visual analysis. The method comprises the following steps that multidirectional lathe workpiece monitoring is carried out based on a heterogeneous visual sensing array, and a theoretical lathe machining finished product is obtained; real-time lathe tool and workpiece interactive monitoring is carried out, and time sequence tool cutting state data are constructed; according to the time sequence cutter cutting state data, carrying out finished product comprehensive form deviation evaluation on the theoretical lathe machining finished product so as to obtain a machining form deviation evaluation result; and performing cutter cutting performance attenuation analysis according to the machining form deviation evaluation result to generate a dynamic machining parameter set of the lathe. The lathe management efficiency and the machining precision are improved through dynamic and real-time lathe machining parameter adjustment.

The invention relates to a high-quality non-quenched and tempered steel rectangular bloom for a crankshaft and a preparation method of the high-quality non-quenched and tempered steel rectangular bloom, and belongs to the technical field of non-quenched and tempered steel preparation. In order to improve the purity of molten steel for continuous casting and solve the problems of surface crack, composition segregation and uneven structure of the rectangular bloom of the steel for the non-quenched and tempered crankshaft, the invention provides a preparation method of the rectangular bloom of the steel for the high-quality non-quenched and tempered crankshaft, and the preparation method comprises the process steps of converter / electric furnace smelting, LF refining, VD / RH vacuum treatment and continuous casting. According to the method, the size and shape of the inclusions are controlled by taking strong deoxidation, uniform stirring, slag system refining and soft blowing time as the core, the fusiform MnS-shaped inclusions are obtained, and the cutting performance and the overall mechanical performance of the steel are remarkably improved. According to the method, continuous casting is carried out in a weak cooling and slow drawing mode, the surface of a casting blank is controlled to crack smoothly, the homogenization and the internal quality of the casting blank are improved, the quality of the non-quenched and tempered steel for the crankshaft is obviously improved, and a good base material is provided for rolling the crankshaft.

The invention provides a tool and coating combination recommendation system and method based on workpiece parameters, and relates to the technical field of tool and coating combinings.The method comprises the steps that a test module collects machining performance data under different parameter combinations and covering tool characteristics and cutting performance data of workpieces, a prediction model building module trains a performance prediction model, and the performance prediction model builds a performance prediction model; the simulation module randomly combines parameters to generate initial population individuals and inputs the initial population individuals into the model to obtain data, the data processing module processes the obtained data and generates a life evaluation coefficient, a quality evaluation coefficient and a comprehensive evaluation coefficient, and the iterative optimization module optimizes the initial population by means of a genetic algorithm with the purpose of minimizing the comprehensive evaluation coefficient. And a recommendation module selects an optimal combination and recommends the optimal combination to the user according to the optimal values. According to the method, the actual testing frequency is greatly reduced, and the optimal matching scheme of the cutter and the coating, which can prolong the service life of the cutter, reduce the machining cost and improve the machining quality and is suitable for different machining scenes, is quickly and accurately found.

The present invention relates to the technical field of other processing of metals. Disclosed are a free-machining titanium material and a preparation process therefor. The free-machining titanium material comprises: a matrix component group and free-machining component groups, wherein at least one of the free-machining component groups is added to the matrix component group; the matrix component group comprises the following components in percentage by mass: 0-1.0% of Fe, 0-0.08% of N, 0-0.02% of H, 0-0.50% of O, 0-8.0% of Al, 0-15.0% of V, and the balance being titanium and inevitable impurities; and the free-machining component groups are an RE element and S element group, a Cu element and S element group, a Zr element group, a C element group, a B element group, and an Mg element group, respectively. The preparation process involves producing the described free-machining titanium material by using any one of the following three methods: vacuum arc remelting, vacuum floating melting, and powder metallurgy. The present invention solves the technical problem of how to further improve the machinability of titanium materials.

The invention relates to the technical field of state monitoring of numerical control machine tools, in particular to an embedded monitoring method for cutter wear of a numerical control machine tool. The method comprises the following steps: performing embedded monitoring and synchronous multi-modal data acquisition and preprocessing on a tool in a machining process to form a real-time working condition data frame queue; cutting effective interval data interception is carried out on the real-time working condition data frame queue to obtain an effective cutting data sequence; performing current and cutter feeding rate discretization processing on the effective cutting data sequence to form an energy-effect reference fingerprint; extracting an expected healthy feed rate from the energy-effect reference fingerprint; and performing performance deviation absolute amount calculation according to the expected healthy feed rate, and performing cutting performance attenuation analysis to obtain the cutting performance attenuation degree. According to the method, a complete process from detection to parameter adaptive closed-loop control is realized on a resource-limited embedded system, so that the service life of a cutter is prolonged, the machining quality is guaranteed, and the production efficiency is improved.

This invention provides a copper alloy and its preparation method. The copper alloy has the following mass percentage composition: Ni: 0.5–2.0 wt%, S: 0.3–0.8 wt%, P: 0.1–0.3 wt%, Sn: 0.1–0.2 wt%, Si: 0.05–0.2 wt%, with the balance being Cu and unavoidable impurities. The microstructure of the copper alloy contains Cu₂S particles. This invention designs the composition and microstructure of the copper alloy, particularly controlling the content range of Ni, P, and Si elements to give the material high strength and high conductivity. Furthermore, the addition of S element forms Cu₂S particles, thereby improving the material's machinability and facilitating its fabrication into connector components.

The thin-gauge ultrahigh-strength non-oriented silicon steel comprises the following chemical components in percentage by mass: less than or equal to 0.002% of C, 3.1%-4.0% of Si, 0.3%-0.7% of Mn, less than or equal to 0.01% of P, less than or equal to 0.001% of S, 0.5%-1.2% of Als, 0.01%-0.08% of Sn, less than or equal to 0.002% of N, less than or equal to 0.001% of Ti, less than or equal to 0.002% of Nb, less than or equal to 0.002% of V and the balance of Fe and inevitable impurities, and Sieq is equal to [wSi] + 2 [wAl]-0.5 [wMn]. According to the technical scheme, trace alloy elements do not need to be added, the alloy smelting difficulty can be reduced, the smelting production cost is saved, meanwhile, the means of increasing deformation structures and improving the content of silicon, aluminum and manganese elements are adopted, and the material has the advantages of being high in strength, high in electromagnetic performance and excellent in machinability at the same time.

According to the preparation method of the free-cutting lead brass alloy, trace elements such as tellurium, cobalt, samarium and selenium are added into lead brass, the tellurium, the selenium and the like can easily form low-melting-point compounds with other elements, grain growth can be inhibited, dispersed distribution of fine lead particles is promoted, stress concentration is reduced, and the cutting performance is improved; by adding cobalt, samarium and the like, grain refinement is facilitated, distribution and forms of selenium, tellurium and other elements are changed, alloy fluidity is promoted, dispersed distribution of lead and the like is promoted to be more uniform, the cutting performance is further improved, in addition, dissolution of lead can be inhibited through the passive film layer, the environment-friendly performance is improved, and harm caused by dissolution of lead is reduced.

The invention discloses a material cutting performance evaluation method, device and equipment and a medium, and the method comprises the steps: controlling a milling cutter of a milling machine to mill a to-be-tested material according to preset milling parameters in a feeding direction perpendicular to the to-be-tested material under the condition that a test state is satisfied between fixed equipment and the to-be-tested material, so that a milling surface is formed on the to-be-tested material; controlling the force measuring equipment to monitor the actual milling force applied to the to-be-measured material by the milling cutter in the milling process; roughness detection equipment is controlled to detect the milling face, and the actual roughness is obtained; and evaluating the cutting performance of the to-be-tested material according to the actual milling force, the actual roughness and a preset index. Therefore, by integrating milling, real-time force measurement and surface roughness detection, a set of multi-index collaborative comprehensive evaluation system is constructed, and the cutting force and the machined surface quality can be quantitatively acquired and analyzed at the same time, so that the cutting machining performance of the material is simply, quickly, comprehensively and objectively reflected.

The invention relates to the technical field of metallurgy, and provides brass and a preparation method thereof.The preparation raw materials of the brass comprise the following components of 0.05-0.15 wt% of Al, 0.05-0.15 wt% of Cu, 0.05-0.15 wt% of Ti, 0.05- Si, 0.05 wt% to 0.15 wt%; 0.05 to 0.12 wt% of Fe; sn, 0.03 wt% to 0.20 wt%; 0.40 to 2 wt% of Bi; 0.40 to 2 weight percent of In; 32 to 45 wt% of Zn; and the balance of Cu. The brass prepared through the composition proportion of all the preparation raw materials has a stable alpha phase, a stable beta phase and a stable In-rich phase, the alpha phase is a matrix phase, the beta phase is distributed in the alpha phase, the In-rich phase is distributed in the alpha phase and at the grain boundary, the cutting performance of the brass can be improved while the strength, wear resistance and corrosion resistance of the brass are guaranteed, and the service life of the brass is prolonged. And a brass product prepared from the brass prepared from the elements greatly reduces pollution and harm to the environment and human bodies.

The present invention can realize better cutting performance while suppressing an influence of, for instance, deflection of a head and an increase in a moment acting on a fastening mechanism even when a cutting insert of a long total length is used. A shank of a head replaceable type cutting tool includes: a fastening mechanism that is formed at a leading end part in a longitudinal direction of the shank, and attaches a head; and a recessed part that is formed at the leading end part so as to accommodate a part of a cutting insert held by the head and avoid an interference with the cutting insert. The recessed part may be provided to accommodate a non-use part of the cutting insert held by the head in a state where the head is attached to the leading end part, and avoid an interference with the cutting insert.

The invention belongs to the technical field of soft magnetic stainless steel, and provides a soft magnetic stainless steel wire rod with ultrahigh corrosion resistance, good machinability and excellent plasticity and toughness and a preparation method of the soft magnetic stainless steel wire rod. The stainless steel wire rod comprises the following chemical components in percentage by mass: less than or equal to 0.020% of C, 1.20 to 2.00% of Si, less than or equal to 0.50% of Mn, 18.0 to 20.0% of Cr, less than or equal to 0.30% of Ni, 2.50 to 3.00% of Mo, less than or equal to 0.020% of N, less than 0.020% of P, 0.008 to 0.015% of S, 0.030 to 0.050% of Se, 0.20 to 0.30% of Nb and the balance of Fe and inevitable impurities. The material has ultrahigh corrosion resistance, excellent soft magnetic performance, good free-cutting performance and good plasticity and toughness, is suitable for subsequent drawing machining and turning machining, and has a wide market application prospect. And the preparation method provided by the invention is high in yield and suitable for industrial large-scale production.

The rolling method comprises the following steps that a steel billet enters a heating furnace to be heated, the temperature of a preheating section is smaller than or equal to 700 DEG C, the passing time ranges from 30 min to 45 min, the temperature of a heating section I ranges from 900 DEG C to 1100 DEG C, the passing time ranges from 30 min to 45 min, the temperature of a heating section II ranges from 1100 DEG C to 1300 DEG C, the passing time ranges from 15 min to 30 min, the temperature of a soaking section ranges from 1150 DEG C to 1250 DEG C, and the passing time ranges from 15 min to 30 min; and the heated steel billet is rolled, heat preservation and cooling are conducted after rolling, and the free-cutting flat steel is obtained. The initial rolling temperature is 1100-1180 DEG C, the final rolling temperature is 980-1030 DEG C, and the rolling is divided into three stages of rough rolling, intermediate rolling and finish rolling. MnS in the free-cutting flat steel produced by adopting the rolling method is uniformly distributed, and the anisotropy of the cutting performance is obviously reduced.

The invention provides a topological optimization-based negative chamfering tool microstructure design method, which comprises the following steps of: performing three-dimensional orthogonal cutting thermal-mechanical coupling simulation on a negative chamfering tool to obtain positive stress distribution of a target area of the negative chamfering tool in a cutting state; wherein the target area is a V-shaped area or an inclined plane area formed at the junction of the rake face and the chamfered edge; and based on the normal stress distribution of the target area, adjusting the material density distribution of the target area by using a variable density method, and carrying out topological optimization on the material density distribution of the target area by taking the tool nose stress minimization as a target function to obtain the microstructure of the target area. Compared with a traditional micro-texture tool with a simple structure, the method can perform structural design on a stress concentration area to improve the stress condition of the tool, so that the cutting performance of the tool is improved, the service life of the tool is prolonged, and the quality of a machined surface is improved.

Provided are a lithium disilicate glass-ceramic green body, a preparation method therefor, and a use thereof. The lithium disilicate glass-ceramic green body comprises a lithium disilicate main crystal phase, crystal size in the lithium disilicate glass-ceramic blank being between 50 and 400 nm, and the proportion of the area of crystal grains having a length greater than 350 nm to the total area being less than 30%. The present disclosure, by means of controlling the internal crystal size of the lithium disilicate glass-ceramic green body to be below 400 nm, enables same to be directly machined without damaging the machining equipment, and combines the advantages of high strength, machinability and direct coloration. This can reduce the waiting time for patients to receive dental restorations, solve the problem of patients being unable to know the color of all-ceramic dentures before fabrication, and overcome a bottleneck for all-ceramic denture restoration materials for same-day delivery. It has great significance for achieving preoperative color matching and rapid restoration in clinical practice.

The present invention relates to a graphite steel having excellent machinability, and a manufacturing method therefor, and more specifically, to a calcium-containing graphite steel having machinability superior to that of normal free-cutting steel and a manufacturing method therefor.

The invention discloses a method for evaluating the machinability of sulfur-containing free-cutting steel. The method comprises the following steps: (1) testing the hardness of a section; (2) assigning hardness test data; (3) grade evaluation of sulfide inclusions; and (4) comprehensive assignment calculation is conducted, specifically, the product of the hardness absolute value grade assignment, the hardness standard deviation grade assignment and the sulfide inclusion grade assignment serves as the comprehensive assignment, the turning performance of the materials is sequenced according to the comprehensive assignment, and the smaller the comprehensive assignment is, the easier machining is. According to the evaluation method disclosed by the invention, before the sulfur-containing free-cutting cold-drawing bar is cut, the machinability of the bar is visually evaluated by detecting the hardness, the uniformity of the hardness and the distribution pattern of non-metallic inclusions and through assignment calculation, so that bar processing enterprises can be helped to estimate the processing efficiency and calculate the cost, and the processing efficiency of the bars is improved. And a guiding effect is achieved on enterprise production and operation.

A cutting tap is provided which suppresses breakage and wear of a blade during tapping and has high durability. In a nitriding treatment step (P2), a nitrogen diffusion layer in which nitrogen atoms contained in an atmosphere gas diffuse from the surface of a tool base material of the cutting tap under heating is formed, and then, in a honing treatment step (P3), an abrasive particle is made to collide with a cutting blade portion of the tool base material of the cutting tap to round the cutting blade portion and remove a blade tip. The cutting blade portion is made to have a thick nitrogen diffusion layer in advance by diffusion from a rear clearance face and diffusion from a front rake face, and the nitrogen concentration and hardness of the blade tip of the cutting blade portion are relatively high and mechanically brittle. Therefore, by removing the mechanically brittle blade tip, wear and breakage of the cutting blade portion of the cutting tap are reduced, and a tool performance capable of maintaining good cutting performance for a long period of time can be obtained.

The present application provides a kind of big coil easy cutting steel and its production process, component: C≤0.09%, Si≤0.005%, Mn:0.90~1.65%, P:0.04~0.09%, S:0.30~0.50%, Al≤0.030%, N≤0.0060%, O≤0.0140%, the balance is Fe and inevitable impurities.Compared with prior art, the present application controls LF furnace refining process activity oxygen range, cooperates with suitable big coil production process parameters, including soaking temperature, soaking time, opening rolling temperature, coiling temperature, controls coiling temperature range=J±15℃, J=(4×Mn / S+LF activity oxygen)+800℃.In this temperature interval, the final product sulfide spindle is properly controlled when coiling.The final surface quality is excellent, the product rod sulfide spindle rate is high, C-shaped scrap accounts for more than 90%, and the cutting performance is excellent.

The invention relates to the field of saw blades, in particular to an efficient sawing band saw blade and sawing machining equipment. According to the band saw blade, the special arc liquid storage groove structure is arranged on the tooth groove outline, so that cutting liquid can effectively enter saw seams and infiltrate the rake face of the saw teeth, the cutting temperature is reduced, adhesive abrasion is delayed, and the saw cutting service life is remarkably prolonged. The tooth-shaped structure of the band saw blade comprises a plurality of continuous arc sections, the optimized cutter angle and the optimized diversion trench design, and the cooling effect and the cutting performance are further enhanced. Practical application shows that the efficient sawing band saw blade shows excellent cooling and wear-resisting performance under the high-linear-speed sawing working condition.

This invention relates to the field of alloy technology, specifically disclosing a microalloyed copper alloy tube and its preparation process. The copper alloy tube is composed of the following components by mass percentage: Ni 0.05%-0.15%, Sn 0.05%-0.15%, Fe 0.01%-0.1%, P 0.02%-0.04%, with the balance being Cu and unavoidable impurities. The mass ratio of Sn to Ni is controlled between 0.5 and 3. It possesses a single face-centered cubic α-phase crystal structure, with an isometric grain ratio ≥85% in the microstructure and an average grain size of 10-20 μm. The preparation process achieves a three-dimensional strengthening effect of solution treatment, precipitation, and grain refinement. The product exhibits a tensile strength of 250-270 MPa, an elongation after fracture ≥45%, and a yield strength ratio of 0.32-0.36, combining high strength, low yield strength ratio, excellent machinability, and corrosion resistance. It is energy-efficient and easily mass-produced.

The invention discloses a weather-proof heat-insulation light-weight luggage and a lightening process thereof. The weather-proof heat-insulation light-weight luggage comprises a luggage body, the luggage is provided with a luggage body and a luggage cover, and the luggage body and the luggage cover are opened / locked through a zipper structure; a lantern ring is arranged at the opening of the box body, the lantern ring is fixed on the box body through a rivet, the lantern ring is of an aluminum alloy-carbon fiber composite structure, the lantern ring is formed by wrapping a carbon fiber woven three-dimensional structure with aluminum alloy, the carbon fiber woven three-dimensional structure is provided with hollow holes, and a supporting part extends outwards from the intersection of carbon fibers; and a weather-proof coating is arranged on the surface of the lantern ring. The lantern ring is made into a composite structure, the light and high-strength carbon fibers are combined with the aluminum alloy with toughness and machinability, the performance of the lantern ring is improved, the weather resistance of the lantern ring is improved through the coating on the surface of the lantern ring, and the attractiveness of the lantern ring is improved.

The utility model relates to the technical field of grinding, in particular to an agglomerated abrasive wire product and a grinding tool, the agglomerated abrasive wire product comprises an installation base body layer and a grinding layer, and the grinding layer and the installation base body layer are of an integrated structure; the grinding layer is provided with a plurality of grinding material base bodies, each grinding material base body comprises grinding material aggregates and a brittle medium base body, and the brittle medium base bodies and the grinding material aggregates are of an integrated structure. The utility model mainly aims to provide an agglomerated abrasive wire product which aims to prevent grinding scraps from being adsorbed on the outer surface of agglomerated abrasives and among the agglomerated abrasives, maintain the cutting performance of the abrasives and improve the grinding quality and efficiency.

This invention discloses a method for preparing a large round billet for continuous casting of forged cold-rolled roll sleeves, comprising: controlling the composition system, wherein the chemical composition of the raw material steel is: C: 0.65-0.75%, Si: 0.25-0.40%, Mn: 0.35-0.50%, P≤0.020%, S≤0.020%, Cr: 1.90-2.10%, Ni: 0.30-0.45%, Mo: 0.20-0.40%, V: 0.05-0.10%; and controlling the continuous casting process parameters, wherein the superheat is controlled within a certain range. The casting temperature is maintained between 15 and 35°C, the casting speed is kept stable at 0.24 ± 0.01 m / min, the crystallizer water flow is controlled at 3700 L / min, and the secondary cooling water flow in the crystallizer is controlled at 0.12 L / Kg. During continuous casting, a 200 A / 2.5 HZ electromagnetic stirring of the casting flow and a 500 A / 1.2 HZ strong end electromagnetic stirring are used. The heat treatment process parameters for the continuously cast round billets are controlled as follows: red-charging annealing of the continuously cast round billets, furnace charging temperature ≥ 400°C, heating rate ≤ 100°C / h, holding at 730°C for ≥ 15 h, furnace cooling to 400°C, and air cooling upon exiting the furnace. This invention ensures the hardness and wear resistance of the cold-rolled roll sleeves while improving toughness and machinability, avoiding surface cracking and internal cracking of the roll sleeves during the casting and forging processes, ultimately achieving high-efficiency production and long service life of the roll sleeves.

To realize blade tip design and the like advantageous for improvements in sharpness and in chip discharging performance in BTA processing.SOLUTION: A chip 30 is attached to a body of a cutting tool 10, and comprises a tip 330 provided with a cutting edge CE and a rear end part 340 facing the same. At the tip 330, the cutting edge CE is formed into a step (stair) shape including a central edge 31 arranged on an inside surface 350 side and an outer peripheral edge 33 arranged on an outside surface 360 side. Further, In a rake face (second face 320) concerning the cutting edge CE, chip breakers B1, B3 are formed at parts corresponding to the central edge 31 and the outer peripheral edge 33, respectively. A maximum width W1max of the chip breaker B1 at the part corresponding to the central edge 31 is so made as to be larger than a maximum width W3max of chip breaker B3 at the part corresponding to the outer peripheral edge 33.SELECTED DRAWING: Figure 4

The invention belongs to the technical field of copper alloys, and particularly relates to a brass alloy material and a preparation method and application thereof. The performance bottleneck of the brass alloy material is broken through through multi-scale optimization by utilizing component design-phase state regulation and control-process cooperation, so that the cutting machinability, corrosion resistance and mechanical properties of the brass alloy material are synergistically improved. A two-step heat treatment method is adopted, quenching is conducted through solid solution, annealing is conducted after quenching, staged heat treatment is conducted, a high beta phase is reserved in the solid solution stage, the beta phase is partially decomposed through annealing, the beta phase proportion is reduced, the alpha phase is increased, an alpha + beta double-phase structure is obtained, the beta phase proportion is dynamically reduced from 60%-80% to 20%-30%, the beta phase proportion is dynamically adjusted and controlled, and the mechanical property of the alloy is improved. The brass alloy material has the advantages of good processability and corrosion resistance, improvement of the chip breaking property, maintenance of the corrosion resistance of a copper matrix, improvement of the hardness and strength of the brass alloy material, improvement of the cutting chip breaking capability and avoidance of brittleness increase.

The invention relates to the technical field of steel production, in particular to a steel plate for an intermittent drive motor, which comprises the following chemical components in percentage by mass: less than or equal to 0.003% of C, 0.50-1.50% of Si, 0.5-1.5% of Mn, 0.02-0.06% of P, less than or equal to 0.001% of S, less than or equal to 0.002% of N, 0.05-0.15% of Mo and 0.20-1.00% of Als. And the balance of Fe and inevitable residual elements. The electromagnetic performance requirement can be met, the mechanical strength machining performance can be considered, the operation efficiency and reliability of the intermittent drive motor are improved, and the production cost is reduced.

A crescent-edge hard alloy milling cutter and a parameter design method thereof relate to the technical field of milling cutter design. The crescent-edge hard alloy milling cutter includes a front cutter head, a peripheral blade portion, and a shank portion, where a plurality of crescent peripheral blades extending helically toward the front cutter head are provided on the peripheral blade portion; a plurality of crescent cutting blades are provided on the front cutter head; and the crescent cutting blade and the crescent peripheral blade are in arc transition in pairs. With the design of the crescent cutting blade and the crescent peripheral blade, the crescent-edge hard alloy milling cutter has excellent cutting performance. Moreover, the crescent cutting blade and the crescent peripheral blade are in the arc transition, ensuring smoothness of the milling cutter to cut a metal workpiece.

The device comprises a pulse power supply, the negative electrode and the positive electrode of the pulse power supply are connected with a metal-based diamond composite material and a tool electrode respectively, the tool electrode or the metal-based diamond composite material is provided with an ultrasonic vibrator, and the ultrasonic vibrator is connected with the pulse power supply. And the ultrasonic vibrator is provided with an ultrasonic generator. According to the method, the distribution density of bubbles on the surface of the diamond is improved through the cathode surface hydrogen evolution process in the electrolysis process, controllable conditions are created for the ultrasonic cavitation effect, a tool electrode material is sputtered to the surface layer of the diamond due to electric spark discharge, a catalyst is provided, and the conversion efficiency of diamond graphitization is improved by integrating the two conditions. The surface layer of the diamond has electrical conductivity after being graphitized, so that the diamond has discharge machinability without the operation of plating metal and the like, and the implementation mode is simple.