72 results about "Swaging" patented technology

The application discloses a turbine disc die forging process reasoning method and system, and the method comprises the following steps: (1) selecting key points of a turbine disc which need to be controlled in organization; (2) extracting deformation information of the key points through finite element simulation of the whole forging process of the turbine disc; (3) establishing a target optimization function, and respectively setting requirements for the average grain size and the recrystallization fraction of the key points, and setting corresponding weight values for the final organization targets of the key points; (4) setting boundary values and a penalty function of process parameters according to the actual situation of forging, and when the inferred process exceeds the boundary, the penalty function starts to execute; (5) embedding the target optimization function and the penalty function into a multi-objective optimization algorithm, and simultaneously inferring multiple forging process parameters. The method can achieve the effect of optimizing the grain organization of multiple regions of a forging, and effectively protects a die, thereby providing a theoretical basis and technical support for realizing high-quality forging.

The invention provides a combined forging method of a hydrogenation reactor shell ring, and relates to the technical field of forging, the combined forging method adopted by the invention comprises the following steps: upsetting a blank, punching, drawing out a core rod, pre-reaming, drawing out and blanking, closing up and drawing out, and reaming to obtain a finished product, so as to obtain a finished product forge piece; a special closing-in sleeve is adopted in the closing-in drawing-out and chambering finished product forming process, a finished forge piece with a straight section in the middle and two closing-in ends can be obtained through the special closing-in sleeve, the finished forge piece is divided, and then two closing-in shell rings with the same straight section size and the same or different closing-in section inner diameters can be obtained. By the adoption of the method, integrated combined forging of the two shell nosing sections with the same straight section size and the same or different shell nosing section inner diameters can be achieved, the total heating number of the forged two shell nosing sections is reduced, the production period is effectively shortened, and therefore the production efficiency can be remarkably improved, the utilization rate of materials can be greatly increased, and the production cost is reduced. And the production requirements of different specifications of closing shell rings can be met.

The utility model relates to the technical field of gear dies, and discloses a gear hot die forging die with a cooling channel, a lower die is mounted at the center of the upper surface of a bottom plate, a positioning column for positioning is fixedly mounted at the side end, corresponding to the lower die, of the upper surface of the bottom plate, and a top plate for supporting is fixedly mounted at the upper end of the positioning column; the upper heat conduction layer is in close contact with the cooling water pipe, and the lower heat conduction layer is connected with the cooling water pipe through a connecting pipe, so that the double heat conduction structure greatly improves the heat conduction efficiency, and the mold can be rapidly cooled in cooperation with the heat dissipation effect of the ventilation opening; and the cooling water pipe, the auxiliary pipe and the annular pipe are arranged in a surrounding manner, so that all parts of the mold can be uniformly cooled, the local overheating or supercooling condition is avoided, the uniformity of a mold temperature field is ensured, and the consistency and stability of gear forming are favorably improved.

The application provides a high-strength rare earth magnesium alloy based on a room-temperature rotary swaging composite process and a preparation method thereof.The method comprises the following specific steps: according to designed components, raw materials are smelted to obtain a semi-continuous casting ingot, the rare earth magnesium alloy ingot is subjected to homogenization treatment, then is preheated and kept warm to be subjected to differential temperature extrusion, the extruded rare earth magnesium alloy is subjected to multi-pass rotary swaging treatment with a small deformation at room temperature, and finally is subjected to artificial aging treatment.Through the composite process with the room-temperature rotary swaging, the grains can be refined, the texture can be improved, and a large number of dislocations and twins can be introduced into the grains, so that the nucleation sites and precipitation power of precipitated phases in the aging process are improved, the aging strengthening capacity is more excellent, and the high-strength rare earth magnesium alloy is obtained.The application of the light-weight high-strength rare earth magnesium alloy in the fields of aerospace, rail transportation and automobiles can be accelerated.

The utility model relates to the technical field of forge piece cutting and separating equipment, in particular to combined forge piece cutting and separating equipment. The combined and forged piece cutting and separating equipment comprises a base; a stand column is installed on the upper end face of the base and connected with a saw frame. A saw band tensioning mechanism and a main transmission mechanism are mounted in the saw frame; the stand column is further connected with a clamping mechanism. The clamping mechanism comprises a driving assembly and a clamping assembly. The saw frame is further connected with a cutting assembly, the cutting assembly comprises a saw blade, a guide groove and a to-be-cut clutch forge piece, the guide groove is formed in the to-be-cut clutch forge piece, and when cutting work is conducted, the saw blade is placed in the guide groove; the driving assembly is used for driving the cutting assembly, and the clamping assembly is used for clamping the clutch forge piece to be cut. By arranging the guide groove, the guide groove can be used for verifying whether the forged piece is installed in an offset mode or not, the cutting position of the saw blade can be conveniently guided, the guide groove has a certain clamping effect on the saw blade in the cutting process, and therefore the situation that the saw blade is cut in an inclined mode in the cutting process is prevented.

A forming tool for a forming tool assembly for producing a cylindrical workpiece has a helical outer contour in multiple stages by means of swaging, the forming tool including a force-application side, a forming side located opposite the force-application side, and a cam structure formed on the forming side. The cam structure has a first forming cam and a second forming cam which are located one behind the other in a longitudinal direction of the forming tool perpendicular to the forming direction. The forming cams have various cam heights and the forming cams have a cam extension direction in an orthogonal view of the forming side, which cam extension direction is oblique in relation to the longitudinal direction of the forming tool. The forming tool is used in a forming tool assembly, a forming machine and a forming method, and a computer program is used to control the forming method.

A method of producing a wire product from a nickel-titanium shape memory alloy, and a wire product produced by such method. The method includes consolidating a nickel-titanium shape memory alloy to a preform using an additive manufacturing process. Thereafter, the preform may be subject to a hot working process, including heating the preform and deforming the preform, such as by, forging, extrusion, rolling, swaging, and the like. The hot-worked preform may be annealed following hot working. The preform may then be subjected to one or more cold working processes including drawing, swaging, rolling, and the like. Annealing may also occur after cold working. The hot and cold working processes may impart significant diameter reduction to form the wire product.

The invention relates to a Zu-Cu alloy preparation process and application based on deformation regulation and control, and relates to the field of biomedical materials, in particular to the field of zinc alloys.The Zu-Cu alloy preparation process comprises the steps that a Zn-Cu ingot blank and calcium carbonate are smelted at the temperature of 450-500 DEG C to obtain a melt, casting is conducted through a semi-continuous casting process, and a Zn-Cu alloy ingot is obtained; and after the Zn-Cu alloy ingot is subjected to homogenization treatment, the Zn-Cu alloy ingot is subjected to rotary swaging, the total deformation of rotary swaging ranges from 64% to 98%, and the Zn-Cu alloy is obtained. According to the method, the yield strength, tensile strength and elongation at break of the alloy are remarkably improved through 64%-98% of the total deformation of rotary swaging and the grain refinement effect caused by large deformation, meanwhile, the corrosion uniformity of the zinc-copper alloy is improved, and precise adaptation of the mechanical property and the degradation rate of the zinc alloy is achieved.

The application discloses a cutter type double-layer casing forging and milling device, which comprises an upper joint, the lower end of the upper joint is connected with a main body through a drill rod buckle, the inner wall of the main body is provided with a flow distribution disc, the middle part of the flow distribution disc is penetrated by a flow limiting rod, the outer wall of the upper end of the flow limiting rod is provided with a flow guide head, the inside of the main body below the flow distribution disc is provided with a piston, the outer wall of the upper end of the piston is fixed with a sealing element, the outer wall of the sealing element is in abutment with the inner wall of the main body, the middle part of the piston is provided with a through hole, the top of the through hole is provided with a flow limiting sleeve, and the top of the through hole above the flow limiting sleeve is provided with a clamping spring. The cutter type double-layer casing forging and milling device can simultaneously perform windowing operation on two layers of casings at one time, improves the workover quality, increases the workover efficiency and generates certain economic benefits.

The present invention relates to a method for manufacturing a rotor shaft (1), in particular a rotor shaft (1) for an electric motor, comprising at least the following steps: (S1) providing a metallic solid bar section as pre-material (V) extending along an axis (X), (S2) bulk forming of the pre-material (V) by extrusion to produce a cup body (N) consisting of a hollow cylindrical side wall section (S) extending axially along the axis (X) and radially circumferentially surrounding an interior space (I), with a hollow cylindrical cross-section unchanged along the axis (X), and a transverse wall section (Q) spanning the interior space (I) radially across the side wall section (S) at an axial position along the axis (X).(S3) Removing the transverse wall section (Q) from the side wall section (S) by a separation process to produce a hollow cylinder body (H) formed (solely) by the side wall section (S), and (S4) rotary swaging of at least one axial section (A) of the hollow cylinder body (H) as seen along the axis (X) to produce the rotor shaft (1). The present invention further relates to a rotor shaft produced according to the method of the invention.

The invention discloses a pulsed magnetic field assisted rotary swaging Cu-Be-Pb alloy bar structure refining process, and belongs to the technical field of metal material machining. The process comprises the steps of blank preparation, rotary swaging equipment debugging, pulsed magnetic field parameter setting, multi-pass pulsed magnetic field assisted rotary swaging, finished product treatment and the like. By setting specific pulsed magnetic field parameters, rotary swaging deformation and a machining time sequence, structure refining machining of the Cu-Be-Pb alloy bar is achieved. According to the process, by optimizing the matching mode of rotary swaging and the pulsed magnetic field, the operability of the process is improved, and the process is suitable for batch machining of the Cu-Be-Pb alloy bars.

The application provides a swaging assembly and a swaging device, and belongs to the field of metal forging, wherein the swaging assembly comprises a hammer head, a driving block, a wedge block, a positioning roller and a retaining ring. A plurality of hammer heads are uniformly distributed around a first axis, can rotate around the shaft and move in the radial direction (first direction), the driving block is correspondingly arranged on the outer side of each hammer head, and the driving block drives the hammer head to rotate around the shaft; the wedge block is located between the hammer head and the driving block, converts the axial movement into the radial displacement of the hammer head, and accurately adjusts the forging pressure. The positioning roller is arranged on the outer side of the driving block, can rotate around its own axis and the first axis, and is in rolling fit with the driving block; the retaining ring is coaxially arranged on the outer side of the positioning roller, is in rolling fit with the positioning roller on the inner side to form radial constraint, the wedge block drives the hammer head to apply pressure in the radial direction through axial movement, and the positioning roller and the retaining ring limit the freedom of the driving block. Compared with the prior art, the application solves the technical problem that the existing swaging machine is prone to affecting the stability of the internal structure due to the wear of the roller.

The application discloses a preparation method of a rare earth magnesium alloy rod, and the mass percentage composition of the rare earth magnesium alloy is as follows: Gd: 5.89-6.90%, Y: 3.41-3.90%, Zr: 0.42-0.46, and the rest is Mg. The preparation method comprises the following steps: A, extruding deformation is conducted on the rare earth magnesium alloy to obtain an extruded rod, the extrusion temperature is 430-450 DEG C, and the extrusion ratio is 40-55; B, rotary swaging deformation is conducted on the extruded rod to obtain a rotary swaged rod, the rotary swaging deformation temperature is 0-100 DEG C, and the total deformation amount of the rotary swaging deformation is 20-60%; C, first stage heat treatment is conducted on the rotary swaged rod, the first stage heat treatment temperature is 100-200 DEG C, and the heat preservation time is 24-360 h; and D, second stage heat treatment is conducted on the rotary swaged rod, the second stage heat treatment temperature is 260-340 DEG C, and the heat preservation time is 1-15 min. The application can induce a nano-crystal rare earth magnesium alloy rod to build a multi-scale structure through graded heat treatment, and meanwhile, the strength and plasticity of the rare earth magnesium alloy rod are improved.

The invention discloses a high-carbon niobium-tungsten alloy bar for a fastener and a preparation method of the high-carbon niobium-tungsten alloy bar. The method comprises the following steps: 1, selecting an extruded-state high-carbon niobium-tungsten alloy bar blank which is not damaged by grinding, and carrying out radial forging to obtain a forged bar blank; secondly, the forged bar blank is subjected to scaling and polishing treatment; thirdly, the polished forged bar blank is subjected to room-temperature rotary forging and heat treatment, and a rotary forging blank is obtained; fourthly, the room-temperature rotary swaging and heat treatment processes in the third step are repeated on the rotary swaging blank till the target product size is achieved, and a rotary swaging bar is obtained; and fifthly, the rotary swaging bar is subjected to machining and heat treatment, and the high-carbon niobium-tungsten alloy bar is obtained. According to the method, the extrusion-state high-carbon niobium-tungsten alloy bar blank is machined through the radial forging technology and the rotary forging technology, the technological parameters such as the heating temperature, the deformation amount and the cooling mode are controlled, the yield and the production efficiency are effectively improved, and the high-carbon niobium-tungsten alloy bar good in surface quality, uniform in structure and small in grain size is obtained; the material is suitable for high-temperature fields of fasteners for aerospace and the like.

The invention discloses an internal thread reinforced heat exchange copper pipe and a rotary swaging forming device thereof. The rotary swaging forming device specifically comprises a workbench, a rotary swaging mechanism, a clamping mechanism and a feeding mechanism, wherein the rotary swaging mechanism, the clamping mechanism and the feeding mechanism are arranged on the workbench. The clamping mechanism comprises two clamping assemblies and an opening and closing assembly, the two clamping assemblies are used for clamping copper pipes with different pipe diameters, heat dissipation openings are formed in the clamping assemblies, and the heat dissipation openings are connected with external heat dissipation equipment; the opening and closing assembly is arranged in the heat dissipation opening and used for adjusting the opening size of the heat dissipation opening according to the pipe diameter and the temperature of the copper pipe; the larger the pipe diameter of the copper pipe is, the higher the temperature is, and the larger the opening of the heat dissipation opening is, and the smaller the pipe diameter of the copper pipe is, the lower the temperature is, and the smaller the opening of the heat dissipation opening is. The feeding mechanism is connected with the clamping mechanism and used for driving the clamping mechanism to move in the axial direction of the copper pipe. And through the heat dissipation openings which can be automatically adjusted to be opened and closed along with changes of the pipe diameter and the temperature in the clamping assemblies, refined temperature control is carried out on the copper pipe, the plastic flowing performance of materials is improved, and the stability and consistency of rotary swaging forming of the internal threads are improved.

The invention discloses a high-ductility tungsten alloy wire and a preparation method thereof, and belongs to the technical field of tungsten alloy materials. The tungsten alloy wire consists of the following components: rhenium, lanthanum oxide and the balance of tungsten and inevitable impurities. The preparation method comprises the steps of liquid-liquid doping, fine-grained tungsten powder reduction, high-energy mixing, pressing, sintering, continuous rolling, wire drawing, electrolytic polishing and the like. Through liquid-liquid doping and twice reduction processes, uniform dispersion distribution of lanthanum oxide and rhenium is realized, and the problems of two-phase enrichment and overlarge particle size in a traditional doping method are solved. In addition, according to the method, the toughness of the material in the pressure machining process is remarkably improved by adding rhenium, a continuous rolling technology is adopted for replacing traditional rotary swaging machining, energy consumption is reduced, and the uniformity and production efficiency of the material structure are improved. And the ductility, the tensile strength and the yield of the tungsten alloy wire are improved compared with those of a traditional tungsten-lanthanum alloy wire.

The invention provides an ODS-FeCrAl alloy thin-wall pipe and a preparation method thereof, and relates to the field of metallurgy. The preparation method of the ODS-FeCrAl alloy thin-wall pipe comprises the following steps: mechanically alloying yttrium oxide and FeCrAl alloy powder, and screening to obtain the ODS-FeCrAl alloy powder; and the ODS-FeCrAl alloy powder is sequentially subjected to air exhaust treatment, hot isostatic pressing solidification, double-gradient temperature heat treatment, hot extrusion, post-heat treatment, cold rolling and annealing treatment, and then four-die rotary swaging is conducted to obtain the ODS-FeCrAl alloy thin-wall pipe. The thin-wall pipe is an alloy which has a double-peak grain size and is reinforced by double-size nano oxide particles, so that the strength and the plasticity of the alloy are synchronously improved.

According to the machining device and method for the light high-strength high-modulus anti-fatigue pull rod, an inductance coil is installed outside a ceramic mold in a sleeving mode, and a screw arranged in a threaded hole in the center of an installation flange is embedded into the center of the installation end of the ceramic mold in a sleeving mode; a space cavity formed by the inner surface of the ceramic mold and the screw is used as a forming structure of a pipe blank forming end; in the process of extruding and forming the end part of the single side of the pipe blank, an alternating magnetic field is generated by an inductance coil to carry out induction heating on the pipe blank entering a large-diameter closing area in the ceramic mold, and the water-based graphite on the outer sides of a thick-wall area and a transition area of the pipe blank firstly forms a dry film; and the thick wall area and the transition area of the pipe blank are continuously and sequentially extruded into the large-diameter closing-in area, the equal-diameter stability increasing area and the small-diameter closing-in area, and extrusion forming of the single-side end of the pipe blank is achieved. According to the method, the problem that hollow fusiform products such as pull rods cannot be formed by the aluminum-based composite material through a traditional cold rotary swaging or hot extrusion process due to the fact that the reinforcement phase proportion of the aluminum-based composite material is increased is solved.

The production line is used for forging production of large-size ring forgings, the production line comprises a raw material discharging area, a forging area and a finished product storage area, the forging area comprises a first heating area, a feeding track, a fast forging machine, a second heating area and a ring rolling machine, a plurality of heating furnaces are arranged in the first heating area and the second heating area; the feeding track is located between the first heating area and the fast forging machine, heated raw materials are conveyed to the fast forging machine through the feeding mechanical arm, the ring rolling machine is located on the downstream of the fast forging machine, the finished product conveying line comprises a first finished product conveying line and a second finished product conveying line, the first conveying line is connected with the fast forging machine, and the second conveying line is connected with the ring rolling machine. According to the forge piece production line, large-size ring forge pieces can be automatically manufactured, so that the production efficiency can be greatly improved, the production energy consumption and the labor cost are reduced, the forge piece production line is suitable for producing large-batch ring pieces with the same size, and the quality of the ring pieces can be controlled more easily through procedure setting.

The invention discloses a special high-strength titanium alloy powder core wire for additive manufacturing and a preparation method of a component of the special high-strength titanium alloy powder core wire. The method comprises the following steps: 1, selecting a TA1 titanium belt as a sheath, and selecting Al powder, Cu powder, Fe powder, C powder and LaB6 powder as internal fillers; 2, ball-milling and uniformly mixing to obtain mixed powder; thirdly, a TA1 titanium strip is rolled into a U-shaped groove, then the mixed powder is fed into the U-shaped groove, and primary wires are obtained through rolling of a roller; fourthly, after the primary wire is subjected to rotary swaging, multi-pass online annealing and rolling reducing are conducted, and the titanium alloy powder core wire is obtained; and fifthly, the titanium alloy component is obtained through additive manufacturing. C powder is introduced into the internal filler to improve the fluidity of the internal filler, rotary swaging and multi-pass low-temperature short-time on-line annealing are combined to compact gaps and gradually weaken stress, nucleation is promoted through Cu powder and Fe powder in the internal filler, the mechanical property anisotropy of a component is improved, and the mechanical property of the component is improved. And the strength of the component is improved through solid solution strengthening of the Al element and strengthening of a strengthening phase, and the method is suitable for the field of additive manufacturing.

The invention discloses a preparation method of an equiaxial nanoscale titanium alloy bar, and relates to the technical field of beta-type titanium alloy processing. The preparation method specifically comprises the following steps that a TB8 alloy raw material is weighed in proportion, a Y raw material is added into the weighed TB8 alloy raw material, and a mixed alloy raw material is formed; the mixed alloy raw materials are placed in a smelting device, protective gas is introduced, heating smelting is carried out, smelted alloy raw material liquid is poured into a mold, then the mold is subjected to water cooling, and a cast ingot is obtained through rapid solidification; carrying out homogenizing annealing treatment on the cast ingot, and then carrying out air cooling to obtain an alloy bar; and the alloy bar is subjected to room-temperature graded rotary swaging, and the equiaxial nanoscale titanium alloy bar is obtained. According to the preparation method, Y is added in the TB8 alloy smelting process, homogenization treatment is conducted, room-temperature graded rotary swaging is conducted, the equiaxial nanoscale titanium alloy material is successfully prepared through the synergistic effect, and the prepared alloy material is stable in structure and not prone to cracking and has the ultrahigh strength, superplasticity and anti-fatigue characteristics.

The invention discloses a preparation method of a rare earth magnesium alloy bar, the rare earth magnesium alloy comprises the following components in percentage by mass: 5.89-6.90% of Gd, 3.41-3.90% of Y, 0.42-0.46% of Zr and the balance of Mg, the preparation method comprises the following steps: A, the rare earth magnesium alloy is extruded and deformed to obtain an extruded bar, the extrusion temperature is 430-450 DEG C, and the extrusion ratio is 40-55; b, the extruded bar is subjected to rotary swaging deformation, a rotary swaging bar is obtained, the temperature of rotary swaging deformation is 0-100 DEG C, and the total deformation amount of rotary swaging deformation is 20-60%; c, first-stage heat treatment is conducted on the screw forging bar, the first-stage heat treatment temperature ranges from 100 DEG C to 200 DEG C, and the heat preservation time ranges from 24 h to 360 h; and D, second-stage heat treatment is conducted on the rotary forging bar, the second-stage heat treatment temperature ranges from 260 DEG C to 340 DEG C, and the heat preservation time ranges from 1 min to 15 min. The nanocrystalline rare earth magnesium alloy bar is induced to construct a multi-scale structure through graded heat treatment, and meanwhile the strength and plasticity of the nanocrystalline rare earth magnesium alloy bar are improved.

The invention belongs to the field of alloy material manufacturing, and particularly relates to a method for preparing gun steel based on rotary swaging and heat treatment and a gun steel bar manufactured through the method. Comprising the following steps: (1) preparing a rod-shaped gun steel base material, and setting rotary swaging parameters including hammering frequency and die size; (2) the rod-shaped gun steel base material is subjected to multiple single-pass four-die rotary swaging at the room temperature, rotary swaging is conducted for 50-70 passes, and the single-pass four-die rotary swaging comprises the step that the rod-shaped gun steel base material is conveyed into a four-die rotary swaging machine through a feeding device to be subjected to four-die rotary swaging; (3) a gun steel bar with the diameter of 6.8 cm is finally obtained, and the total strain epsilon of the forged material is equal to 3; and (4) the bar obtained after rotary forging is subjected to annealing heat treatment in a muffle furnace, and finally the gun steel bar obtained after heat treatment is obtained. According to the invention, excellent comprehensive mechanical properties can be obtained through simple heat treatment without additional regulation and control, and tedious subsequent treatment is omitted; and the use requirements of places with higher mechanical property requirements are met.

The invention relates to the technical field of precise printing screen manufacturing, in particular to a plating tungsten steel composite silk screen which comprises a silk screen plate and a frame. The wire mesh plate is of a wire mesh structure formed by interweaving warps and wefts, the wire mesh structure in the wire mesh plate is in plain weaving or twill weaving, the warps and the wefts are tungsten wire core materials manufactured through hot rolling, rotary swaging and wire drawing processes, and metal coatings are arranged on the surfaces of the tungsten wire core materials. The soft metal coating is arranged outside the tungsten filament core material, abrasion to precise parts such as a steel buckle and a yarn guide needle is greatly reduced, maintenance and replacement cost is reduced, the soft metal coating has a certain lubricating effect, silk threads are smoother in the weaving process, the phenomena of silk breakage and jamming are possibly reduced, and the service life of the silk threads is prolonged. The weaving speed and production efficiency are improved, the product yield is improved, the silk screen is simple in structure and can be achieved through a mature electroplating or chemical plating process, complex production steps are not increased, and industrial popularization is facilitated.

A buffer protection device, a hot forging balancer, and a buffering method are disclosed, belonging to the technical field of hot forging presses. The buffer protection device includes a sleeve for mounting on top of the balancer. A lower piston rod is slidably disposed within the sleeve, with its lower end extending downwards out of the sleeve to contact the piston ejected from the balancer. An anti-loosening steel wire connects the sleeve and the lower piston rod. The tensioning and breakage of the anti-loosening steel wire dissipates some of the impact energy, achieving primary buffering. An upper piston rod is slidably disposed within the sleeve, coaxially arranged with the lower piston rod. A buffer bushing is fixed above the upper piston rod, guiding the upper piston rod to undergo plastic deformation, achieving secondary buffering. Through multi-stage buffering and energy absorption, the device smoothly blocks the ejected piston and piston rod after breakage, effectively preventing them from flying out while maximizing the absorption of impact energy and avoiding damage to the balancer cylinder.

The rotary swaging device comprises a base and a stand column, the stand column is installed in the middle of the base, a supporting ring is installed on the stand column in a lifting mode, an inner ring base matched with the interior of the special-shaped ring forging is detachably installed on the supporting ring, and the inner ring base is provided with an outer ring matched with the interior of the special-shaped ring forging. A rotating ring is rotationally installed on the base, a lifting ring is installed on the rotating ring in a lifting mode, and a sliding arm is installed on the lifting ring in a sliding mode; self-adaptive precise forming of the complex special-shaped ring forge piece is achieved, the device can sense the deviation between the machining state and the target state in real time through the technology of integrating online three-dimensional scanning and digital twinning model comparison, a compensation strategy is automatically generated, a multi-axis actuator is driven to conduct collaborative correction, and the machining precision of the special-shaped ring forge piece is improved. And traditional'trial and error 'processing depending on artificial experience is converted into'intelligent' forming based on data, so that the one-time forming precision and the percent of pass are remarkably improved.

A feeding device and method for hot forging workpieces, belonging to the technical field of forging production equipment, is disclosed. The feeding device includes a machine body with a first cylinder mounted on it. A clamping mechanism is connected to the end of the telescopic shaft of the first cylinder. A second cylinder is connected to the bottom of the machine body, and the second cylinder is used to drive the machine body to move laterally for feeding or resetting. The clamping mechanism includes a universal joint head and a disc. The disc is fixedly connected to one end of the machine body, and the universal joint head is fixedly connected to the telescopic shaft of the first cylinder. A through hole is provided at the center of the disc to allow the universal joint head to pass laterally. Several telescopic arms are hinged to the universal joint head along its circumference. A clamping claw is hinged to the end of each telescopic arm away from the universal joint head, and the clamping claw is also hinged to the disc. The device adopts a cylinder-driven and linkage mechanical expansion and contraction structure to avoid the problems of temperature rise and expansion, jamming failure caused by long-term heat radiation exposure of precision metal threaded pairs, ensuring continuous and stable operation under high temperature and high frequency conditions and reducing the risk of downtime and production interruption.

The application belongs to the technical field of aluminum alloy material preparation, and particularly relates to a preparation method of optical microcrystalline aluminum alloy rod material, wherein aluminum alloy ingot is sequentially subjected to high-temperature rotary swaging, high-temperature extrusion, intermediate annealing, high-temperature secondary extrusion and stabilization treatment to obtain the optical microcrystalline aluminum alloy rod material; the heating temperature of the high-temperature rotary swaging is 300-350 DEG C, the processing temperature of the high-temperature extrusion is 250-350 DEG C, the temperature of the intermediate annealing is 380-430 DEG C, and the temperature of the high-temperature secondary extrusion is 250-350 DEG C; the application simultaneously improves the hardness and reduces the surface roughness of the product.

The forming jaws (3) of a rotary swaging tool for deforming plastically deformable, preferably metallic, workpieces have a jaw base (13) and a forming body (14) that is structurally separate from the jaw base (13) and supported on, preferably connected to, the jaw base (13). On the workpiece side, the forming body (14) is defined by a forming surface (15) that is formed for deforming the workpiece. The rotary swaging tool has at least one forming jaw (3) of the above-mentioned kind.

The invention discloses a preparation method of high-purity nickel evaporation particles, which comprises the following steps: carrying out hot upsetting on a round nickel ingot casting material to obtain a square blank, carrying out hot rolling after first-time grinding to obtain a hot-rolled blank, carrying out cold rolling after second-time grinding to obtain a cold-rolled blank, carrying out heat treatment and flattening on the cold-rolled blank, and then cutting to obtain a strip-shaped material; the preparation method comprises the following steps: preparing a strip-shaped material, sequentially carrying out mold pressing, third-time grinding and rotary swaging on the strip-shaped material to obtain a bar, polishing the bar, carrying out stamping forming to obtain nickel particles, and finally sequentially carrying out acid pickling, grinding, cleaning and drying on the nickel particles to obtain the nickel evaporation material. The prepared high-purity nickel evaporation particles are few in defect, uniform in structure and good in surface smoothness.