141 results about "Isothermal forging" patented technology

The invention relates to the technical field of forging process intelligent control, in particular to an intelligent control method, system and device for a vacuum isothermal forging press. The method comprises the steps that temperature, pressure and stress data in the forging process are collected based on a multi-mode sensor, and a preliminary original data sequence is generated; cleaning and standardizing the original data sequence to generate standardized real-time working condition data; based on the real-time working condition data and the historical data, constructing a dynamic process prediction model, and generating a key parameter prediction sequence; inputting the key parameter prediction sequence into a reinforcement learning model to generate an optimized process parameter set; and dynamically adjusting a press execution system based on the optimized process parameter set, monitoring the equipment operation state in real time, and generating a closed-loop control instruction sequence. The forging quality consistency and the production efficiency can be effectively improved, and the equipment failure risk is reduced.

The invention relates to the technical field of intelligent manufacturing, in particular to an intelligent defect detecting and repairing method and system for a vacuum isothermal forging based on multi-mode sensing data. The method comprises the following steps: respectively acquiring image data, heat distribution data and stress monitoring data of the vacuum isothermal forging through a visual sensor, a thermal sensor and a stress sensor, and preprocessing the data to generate a time-space aligned multi-modal data set; performing fusion processing on the multi-modal data set, extracting multi-dimensional features of defects through a deep learning network, and generating a defect feature sequence; optimizing a repair path planning model based on the defect feature sequence in combination with the stress distribution features, and generating a repair task sequence; and inputting the repairing task sequence into the intelligent repairing equipment to execute repairing operation. According to the method, the multi-mode sensing technology and the deep learning algorithm are combined, high-precision detection, classification and repair of the defects of the vacuum isothermal forging are achieved, the production efficiency and the product quality are remarkably improved, and the defective rate and the repair cost are reduced.

The invention relates to the field of manufacturing industry, in particular to a self-adaptive energy consumption optimization method and system for a vacuum isothermal forging system production line. The method comprises the following steps: acquiring real-time data of production line equipment, and generating a real-time data sequence; preprocessing, denoising and standardizing the real-time data sequence to obtain clear data for feature extraction; key features are extracted by using an AI model and are trained, and a pre-trained energy efficiency prediction model is generated; and inputting the real-time data into a pre-trained model, generating an optimization decision, adjusting equipment operation parameters, and forming a feedback control system. Through real-time data acquisition and AI optimization, dynamic optimization of energy efficiency is realized, production efficiency is improved, energy consumption is reduced, system adaptability is enhanced, and green manufacturing requirements are met.

The invention discloses a preparation method of a low-cost high-performance TiAl alloy engine blade, relates to the technical field of TiAl alloy preparation, and provides a method for preparing the TiAl alloy blade by combining precision casting and vacuum isothermal forging. The process route comprises the steps of prefabricated blank smelting and precision casting, annealing heat treatment, vacuum isothermal forging of a blade final forging piece, heat treatment and blade machining, and compared with a cast blade, the mechanical property is remarkably improved, and the yield is also remarkably increased; compared with a traditional forged blade, the manufacturing cost is greatly reduced due to the fact that the process is greatly shortened; compared with ingot casting / rod casting and high-temperature forging, the method has the advantages that the material utilization rate and the mechanical property are improved, and the manufacturing cost can be reduced; in addition, compared with forging under the atmospheric condition, the problem of severe oxidation does not exist, and the material utilization rate and the mechanical property are obviously improved. Therefore, the method provided by the invention has important commercial value.

The invention discloses a heat treatment process of a gear, which relates to the technical field of automobile gear heat treatment, and comprises the following steps: S1, blanking, S2, forging, S3, normalizing: preheating the gear in a preheating furnace by adopting a heating mode of combining infrared radiation and hot air circulation, S4, rough machining, S5, carburizing and quenching: carburizing and quenching, s6, induction heat quenching: performing induction heat quenching on an induction coil; S7, nitriding treatment; S8, low-temperature tempering; S9, finish machining; normalizing is combined with infrared radiation, hot air circulation preheating and induction heating, the effects of reducing energy consumption and machining cost and improving production efficiency are achieved, the forging force is reduced through isothermal forging, the energy consumption of equipment is greatly reduced, pulse type vacuum carburizing, high-pressure gas quenching and induction heat quenching are adopted to introduce a self-adaptive induction heating technology, and the energy consumption of equipment is greatly reduced. And a plasma nitriding technology and a composite nitriding technology are adopted, so that the surface hardness, wear resistance and fatigue strength are improved.

The invention relates to the technical field of thermoplastic forming of titanium-aluminum intermetallic compounds, in particular to a non-vacuum isothermal forging method for a titanium-aluminum alloy blade and application of the non-vacuum isothermal forging method for the titanium-aluminum alloy blade. By adjusting and controlling the included angle between the extrusion direction of a titanium-aluminum alloy extrusion state raw material and a titanium-aluminum alloy blade blank, screening proper deformation texture orientation and combining specific forging forming parameters, the structure state of a forge piece is guaranteed, and the purpose of reducing the thermoplastic forming resistance of the gamma-type titanium-aluminum alloy is achieved. The titanium-aluminum alloy blade is subjected to non-vacuum isothermal forging forming through the method, the deformation resistance during alloy forming can be effectively reduced, die abrasion is reduced, the die material selection range is widened, a non-vacuum isothermal forging window is provided, and compared with traditional vacuum isothermal forging forming, the manufacturing cost of the blade is greatly reduced.

The invention discloses an automatic heater monitoring system, method and device for vacuum isothermal forging, and belongs to the technical field of electrical variable measurement, and the automatic heater monitoring system comprises a sensing data acquisition module, a data analysis module, a heating process monitoring module, an adjustment and correction module and a vacuum isothermal forging parameter adjustment module. According to the method, the initial environment condition parameters of the vacuum isothermal forging space in the automatic heater are obtained, the initial environment evaluation indexes are obtained through data analysis and processing, and therefore the initial environment adjustment parameter set is obtained, and initial environment adjustment is carried out; according to the vacuum isothermal forging method, low precision and poor flexibility of vacuum isothermal forging caused by inaccurate initial environment are avoided, so that the precision and the flexibility of vacuum isothermal forging are improved, and the problems of low precision, low flexibility and low production efficiency of vacuum isothermal forging caused by unstable environmental conditions in the prior art are effectively solved.

The invention belongs to the technical field of nickel-based alloy material processing and forming, and particularly relates to a preparation method and application of a powder metallurgy and isothermal forging In738 disc shaft ring piece. The hot isostatic pressing technology is adopted for preforming the blank, internal gaps and cracks of the material are eliminated, the structure is homogenized, element segregation is improved, the fatigue life is prolonged, and a plastic blank is provided for subsequent isothermal forging. Furthermore, the temperature difference between the blank and the mold is reduced through preheating treatment, deformation resistance sudden change caused by local chilling is avoided, and microcrack initiation is inhibited. In addition, dynamic recrystallization is promoted through isothermal forging, a fine equiaxed crystal structure is obtained, and the high-temperature strength is improved; and through solution treatment, grain coarsening is inhibited, a supersaturated solid solution is reserved, and driving force is provided for aging precipitation. And then a dual-mode gamma'phase strengthening system is formed through a two-stage aging process, and the endurance life is optimized. Therefore, the high-temperature comprehensive mechanical property of the In738 nickel-based alloy is improved, and the use requirement of the In738 nickel-based alloy at high temperature is met.

The invention provides an intelligent control method and device for a fully-closed vacuum isothermal forging die changing system, and relates to the field of high-end intelligent device manufacturing. The method comprises the steps that attribute information of a target die stack is obtained; the attribute information comprises the size of the target model heap and / or the hit rate of the target model heap; the hit rate is the probability that the target mold stack is called in the forging tasks; based on the attribute information of the target model stack, the target model stack is adjusted from a temperature change chamber during original filling to a temperature change chamber of a first temperature change area or a second temperature change area for temperature change; each of the first temperature changing area and the second temperature changing area comprises a plurality of groups of oppositely-opened temperature changing chambers which are oppositely arranged; the distance between the first variable temperature area and the vacuum forging chamber is smaller than that between the second variable temperature area and the vacuum forging chamber; the temperature change comprises heating or cooling. The method is applicable to the temperature change process of the mold stack, and is used for realizing mold change in a vacuum environment and dynamically adjusting a temperature change chamber of the mold stack.

The invention provides an intelligent control method and device of a totally-closed vacuum isothermal forging system, relates to the field of aerospace part forging, and is applied to the intelligent control device of the totally-closed vacuum isothermal forging system. The totally-closed vacuum isothermal forging system further comprises a plurality of heating furnaces in a vacuum environment and an intelligent robot for transferring blanks in the heating furnaces. A sliding gate close to one side of the intelligent robot is arranged outside each heating furnace; the method comprises the steps that a target heating task of a target blank is obtained; the target heating task is used for indicating a plurality of working steps in a target blank heating process, and each working step is used for indicating a heating furnace for heating in the working step; and before the target blank is heated in the heating furnace of the current working step to the end of the current working step, a sliding gate of the target heating furnace for heating in the next working step of the current working step is controlled to be opened according to the target heating task. The method is used for improving the transfer efficiency during blank heating.

The invention discloses a vacuum isothermal forging efficient circulating cooling system, a control method and a storage medium, and relates to the field of temperature control, the vacuum isothermal forging efficient circulating cooling system comprises an initial self-checking module, a sensing monitoring module, an external environment monitoring module, a data processing module and a feedback processing module; and whether the cooling water pipeline is blocked is rapidly detected. The running state of the cooling water pipeline is comprehensively evaluated based on real-time water flow parameters of all point positions of the cooling water pipeline in combination with external environment influence factors, and accuracy is improved. The rotating speed of the closed-cycle pumping unit is dynamically adjusted, cooling water is supplied as required, energy is saved, consumption is reduced, abrasion is reduced, the production process is optimized, maintenance cost is reduced, and cooling efficiency is improved.

The forging method for the high-strain-uniformity powder high-temperature alloy turbine disc comprises the following specific steps that S1, a cavity is measured after an isothermal forging die is closed, and area division is conducted; s2, high-temperature alloy powder is prepared through an ultra-high-speed plasma rotating electrode method or an argon atomization method, and an experimental blank is obtained; s3, a pre-forging rough shape A'meeting the size requirement of the turbine disc part to be machined is obtained; s4, high-temperature alloy powder is prepared through an ultra-high-speed plasma rotating electrode method or an argon atomization method, and a hot isostatic pressing blank before forging is obtained; and S5, the obtained hot isostatic pressing blank before forging is machined, a sheath is removed, then isothermal forging is conducted, and the equal-strain turbine disc piece meeting the size requirement is obtained. According to the turbine disc prepared through the method, all parts of the whole disc are uniform in strain, and the range is smaller than 30%.

The invention discloses a dimensional precision and surface quality control method in a TC4 titanium alloy superplastic forming process, which is characterized by comprising the following steps of: performing two-phase region forming forging on a TC4 titanium alloy cast ingot after a high-low high upsetting and drawing process to obtain a blank; the blank is subjected to isothermal forging forming, the height of the blank is monitored in real time, the deformation stage is judged to be the mold filling stage, the compaction stage and the shaping stage according to the height of the blank, the hot initial forging condition is adopted in the mold filling stage, the hot intermediate forging condition is adopted in the compaction stage, the hot forming forging condition is adopted in the shaping stage, and finally a forge piece is obtained; and the forge piece is subjected to solution treatment and aging heat treatment. According to the method, the change of the monitored height is combined with the real-time adjustment of forging process parameters, so that the anisotropy in a microstructure is minimum, crystal grains are finest and uniform, the comprehensive performance is optimal, and meanwhile, the precision control and the surface quality improvement are achieved.

The application discloses a preparation method of high-performance Ti2AlNb-based alloy plate and belongs to the technical field of titanium alloy plate preparation. The application discloses a preparation method of high-performance Ti2AlNb-based alloy plate, and the specific steps are as follows: firstly, the grain size is refined through multi-directional near-isothermal forging and hot rolling, and the comprehensive performance of the plate is improved, wherein the ingot is subjected to multi-directional near-isothermal forging in an alpha2+B2 phase zone (1020 DEG C-1040 DEG C) and an O+B2 phase zone (930 DEG C-960 DEG C), and the grain size of the forged alloy is refined through continuous temperature reduction phase transformation and recrystallization; then, only upper and lower cover plates are added to cover the plate, rivets are used to fix the blank, and hot rolling is carried out in an alpha2+O+B2 phase zone (980 DEG C-1010 DEG C), and the plate is air-cooled after rolling to obtain the Ti2AlNb-based alloy plate with relatively excellent performance. Then, through comparison and experiment, the process of 1000 DEG C / 20min / argon gas rapid cooling heat treatment is selected. Finally, the Ti2AlNb-based alloy plate with excellent performance at room temperature is obtained.

The invention discloses a preparation method of a TC11 titanium alloy cake blank with a high flaw detection level. The method comprises the steps that a TC11 titanium alloy cast ingot is subjected to cogging in the mode of forging above a phase transformation point, forging below the phase transformation point and forging above the phase transformation point, a bar blank is formed through multi-heating-number two-phase region forging, and cake blank forming forging is conducted through isothermal forging after discharging. Parameters such as the temperature, the forging mode and the forging ratio of each stage in the whole forging process are accurately controlled, the deformation uniformity and the structure uniformity are improved, and particularly, the structure uniformity of the cake blank can be remarkably improved by adopting isothermal forging to prepare the cake blank. The preparation method is suitable for industrial production of the TC11 titanium alloy cake blank with the thickness being 100-200 mm and the diameter being 400-600 mm, the production technology is advanced, the preparation process is short, operation is easy and effective, and the product has the advantages of being high in structure uniformity, high in flaw detection clutter level and the like.

The invention discloses a preparation method of a titanium-aluminum intermetallic compound disc with uniform structure properties, relates to the technical field of preparation of titanium-aluminum intermetallic compounds, and provides a method for preparing the titanium-aluminum intermetallic compound disc by combining hot extrusion and vacuum isothermal forging technologies, so that high-quality forming of the titanium-aluminum intermetallic compound disc can be realized. The titanium-aluminum intermetallic compound disc prepared through the method is uniform and fine in microscopic structure and excellent in mechanical property, can meet the service working conditions of disc components for aerospace engines, and has important commercial value.

The invention discloses a speed control system and method for a hydraulic sliding block of a vacuum isothermal forging hydraulic machine, and the system comprises a management terminal, a detection system and a control system, the management terminal is in bidirectional connection with the detection system, and the detection system is in bidirectional connection with the control system. The detection system comprises a detection module, a data acquisition module, a data processing module and a data sending module, and the output end of the detection module is connected with the input end of the data acquisition module. According to the speed control system and method for the hydraulic sliding block of the vacuum isothermal forging hydraulic machine, high-precision control over the speed of the sliding block is achieved through the high-precision displacement sensor and an improved PID control algorithm, the speed control precision can reach + / -0.1 mm / s, speed fluctuation is effectively reduced, the forging quality is improved, and when materials with extremely high speed precision requirements are forged, the speed control precision is greatly improved. Uniform internal structure of the forge piece can be ensured, defects are reduced, and the product percent of pass is increased.

The invention discloses a forging method for regulating and controlling TiAl alloy lamellar orientation, and belongs to the technical field of TiAl alloy material processing. The method comprises the following steps: coating a TiAl alloy ingot by adopting a soft sheath, heating a coated TiAl alloy blank, carrying out one-way multi-pass near isothermal forging, and carrying out heat treatment after re-forging to obtain a TiAl alloy forging stock with a full lamellar structure; according to the method, a TiAl alloy blank is subjected to one-way multi-pass near-isothermal forging in an (alpha + beta) two-phase region, the forged structure is that fine alpha2 / gamma photo layer groups with preferred orientation are distributed on a beta o phase net-shaped matrix, and then the TiAl alloy blank is subjected to heat treatment near an alpha phase transition point to eliminate the beta o phase in the forged structure; and the full lamellar structure TiAl alloy forging stock with the lamellar preferred orientation is obtained, and the comprehensive mechanical property of the TiAl alloy forging is comprehensively provided.

The invention discloses an isothermal forging forming method for a titanium alloy complex die forging for aviation, which is characterized in that the internal structure compactness of the forging is increased, the fiber direction and layout of the internal structure of the forging are optimized, the strength of the forging is improved, and the forging quality is improved by the technological processes of isothermal forging, isothermal pre-forging, corrosive washing, isothermal forging forming, heat treatment, secondary corrosive washing and the like at a specific temperature. The machining efficiency is improved; the machining cost is reduced; valuable material resources are saved; and the comprehensive performance of the forge piece is improved. The method is suitable for isothermal forging forming of titanium alloy complex die forgings for aviation.

A vacuum isothermal forging mechanical hand digital twin monitoring method and device based on physical constraint neural network, the main steps include: combining the collectable data with the equipment mechanism model, using neural network and mechanism model to obtain the data of difficult monitoring position, optimizing and correcting the simulation data of the whole equipment, obtaining the temperature and stress change of the whole structure of the mechanical hand in different working states, and mapping it to the virtual twin body of the mechanical hand; taking the minimum contact distance error and the maximum clamping stiffness prediction accuracy as the objective function, setting the reasonable range of the mechanical hand parameters based on the historical data or expert experience, and obtaining the recommended parameters through the Gaussian process modeling and the expected improvement method. The method can establish a more accurate vacuum isothermal forging mechanical hand digital twin model, and give the work parameter recommendation of carrying new products, which can effectively shorten the generation cycle and adapt to small batch and multi variety production type.

This invention discloses a high-efficiency circulating cooling system and control method for vacuum isothermal forging, as well as a storage medium, relating to the field of temperature control. It includes an initial self-test module, a sensor monitoring module, an external environment monitoring module, a data processing module, and a feedback processing module. By sending pure-tone sinusoidal sound waves to the cooling water pipes, it quickly detects whether the cooling water pipes are blocked. Combining external environmental influencing factors, it comprehensively evaluates the operating status of the cooling water pipes based on real-time water flow parameters at various points in the pipes, improving accuracy. It dynamically adjusts the rotation speed of the closed-loop pumping unit, supplying cooling water on demand, saving energy, reducing wear, optimizing the production process, lowering maintenance costs, and improving cooling efficiency.

The utility model discloses a heating and heat preservation device of an aluminum alloy isothermal forging die, which comprises a lower die block and an upper die block arranged at the top of the lower die block, an upper die heat insulation base plate for insulating heat of the upper die block is arranged at the top of the upper die block, and a heat insulation plate for insulating heat of the lower die block is arranged at the bottom of the lower die block. In order to improve the heat balance speed and efficiency, high-thermal-conductivity die steel is selectively adopted to manufacture the upper die and the lower die of the cavity, in order to reduce the invalid heat energy consumption of an isothermal die and block or reduce the heat energy loss path, a heat insulation material is adopted to wrap a coil and the die on the outer layer of the die, and the contact and heat exchange between the outer surface of the die and air are reduced; under the condition that the necessary temperature of isothermal forging is guaranteed, the input energy of induction heating is reduced, the production cost is reduced, high-thermal-conductivity die steel is adopted between an induction heating coil and a module or a combined module of the die, and the heat balance speed and efficiency of the module are improved.

The utility model relates to the technical field of forging, in particular to an isothermal forging forming device for irregular complex forgings, which comprises a forging table, a lower die is assembled above the forging table, a special-shaped groove is arranged on the surface of the lower die, a hot temperature table is assembled between the lower die and the forging table, an upper pressing die is arranged above the lower die, and a lower pressing die is arranged above the upper pressing die. A hydraulic cylinder is assembled above the upper pressing die, an assembling frame is assembled outside the hydraulic cylinder in a supporting mode, side columns are supported on the side edges of the assembling frame, lower stand columns are supported at the bottom of the assembling frame and supported on the side edges of the upper portion of the forging table, side baffles are assembled on the two sides and the rear side edges of the lower stand columns in a supporting mode, and a front frame is assembled on the front sides of the lower stand columns. A front blocking door is hinged to the interior of the front frame. According to the utility model, heating and temperature increasing can be conveniently carried out according to use requirements, the temperature has no difference with the temperature of a forge piece, isolation and heat preservation can be conveniently carried out, and assembly and use are more convenient.

The invention discloses TiA with a honeycomb shell structure as well as a preparation method, a product and application of the TiA. The method comprises the steps that mixed powder is loaded into a pure titanium tube to be subjected to vacuum packaging, hot isostatic pressing treatment is conducted for 4-6 hours at the temperature of 1200-1300 DEG C and the pressure of 150-200 MPa, then near-isothermal forging is conducted at the temperature of 1250-1300 DEG C at the pressing speed of 0.5-2 mm / s, and the single-pass deformation is 15-25%. The obtained honeycomb shell structure is formed by distributing a W-rich beta phase along a grain boundary and is of a net-shaped wrapping alpha < 2 + > gamma structure. By means of the structure, the yield strength and the tensile strength of the TiAl alloy from the room temperature to 900 DEG C are remarkably improved by about 8%-10%, and meanwhile the room-temperature plasticity of the alloy is basically kept. The method avoids the problems of resource waste and brittle phase increase caused by excessive addition of rare metal elements in a traditional method, has the dual advantages of resource saving and performance optimization, and is suitable for preparing high-temperature structural parts of aerospace engines.

The invention relates to the technical field of forging forming, in particular to a high-strength aluminum alloy multi-station isothermal forging forming device. Comprising hollow transmission frames which are symmetrically arranged front and back; the left inner side of the transmission frame is rotationally connected with a driving roller driven by a motor; the right inner side of the transmission frame is rotationally connected with a driven roller; the outer walls of the driving roller and the driven roller are jointly in transmission connection with a transmission belt; the middle section of the transmission frame penetrates through the heating box close to the left and the cooling box close to the right; the heating box is used for heating by using an electrified heating wire; the cooling box is used for cooling by air cooling; the bottom of the heating box and the bottom of the cooling box are connected with the rack in a supporting mode. A fixed mold with a fixed cavity is fixedly connected to the outer surface of the transmission belt in the transmission direction; the die and the blank are driven by the transmission belt to move integrally, the whole process is completed in a closed machining channel formed by the heating box and the cooling box, temperature drop loss in the blank transferring process is eliminated, and it is ensured that the blank is formed within the set temperature range.

The invention discloses a composite preparation process of a high-strength aluminum alloy special-shaped ring forge piece, and belongs to the technical field of metal plastic processing and heat treatment. The technology sequentially comprises the steps of multidirectional isothermal forging cogging, intermediate solution treatment, special-shaped preformed blank near-net forming, pulse current auxiliary special-shaped ring rolling and deformation heat treatment. Intermediate solution treatment is introduced to interrupt tissue inheritance, and a uniform fine-grain matrix is obtained; by means of the electroplastic effect of pulse current, efficient near-net forming of the special-shaped section is achieved at the low temperature, and grains are further refined; and finally, through combination of pre-cooling deformation and aging deformation heat treatment, synergistic improvement of strength and toughness is achieved. According to the method, the technical problems that in the preparation process of the high-strength aluminum alloy special-shaped ring forge piece, the structure is uneven, the performance anisotropy is high, special-shaped forming is difficult, and the material utilization rate is low are effectively solved, and a near-net-shape product with excellent comprehensive performance and high size precision can be stably obtained.

The invention provides an environment adjusting method, device and equipment for a vacuum isothermal forging space and a medium, and is applied to the technical field of industrial automation and intelligent control. The method comprises the steps that according to initial environment parameters of an internal vacuum isothermal forging space of the automatic heater, environment evaluation indexes are determined; determining a first environment adjustment parameter according to the first membership degree of different evaluation grades corresponding to the environment evaluation index; according to the first environment adjusting parameter, first-time environment adjusting is conducted, and a first vacuum isothermal forging space is obtained; when the environmental parameters of the first vacuum isothermal forging space do not meet the preset parameter threshold value, a second environmental adjustment parameter is determined according to the vacuum isothermal forging parameters, the historical forging standard parameters and the historical forging parameters, then environmental adjustment is conducted again, and a second vacuum isothermal forging space is obtained; environmental parameters of the second vacuum isothermal forging space meet preset parameter thresholds. And the control precision, the self-adaptability and the intelligence of vacuum isothermal forging are remarkably improved.

The invention discloses a method for forging a lower fork arm of a front shock absorber for an automobile air suspension, which comprises the following steps of: carrying out roll forging on an initial blank by adopting a roll forging machine to obtain a roll forging blank; pre-forging to obtain a pre-forged blank; reheating to the temperature of 480 to 520 DEG C; a die forging machine is adopted for conducting finish forging on the prefabricated blank, and a finish forging blank is obtained; sequentially carrying out water cooling, corrosive washing, acid pickling and shot blasting treatment on the final forging blank to obtain a forging with work hardening and residual stress on the surface; wherein in the pre-forging process and the finish-forging process, the temperature of a pre-forging die is the same as that of a finish-forging blank; the invention further discloses a device for forging the lower fork arm of the front shock absorber for the automobile air suspension. According to the invention, the automatic adjustment of the height and the angle during reciprocating heating and multi-stage forging of the blank among the roll forging machine, the pre-forging die, the heating furnace and the finish forging die is realized, the operation steps of multi-time isothermal forging are simplified, the operation steps are simple, and the metal flowability during forging and the simplicity of the forging steps are both considered.

The invention relates to the technical field of titanium alloy crystal preparation, in particular to a large-size titanium alloy forge piece isothermal forging and single crystal regeneration synergistic preparation method which comprises the steps that a forging material ingot is heated, after heat preservation, the forging material ingot is discharged out of a furnace to be subjected to upsetting, drawing-out and air cooling after forging, the forging material ingot is heated again to be above a beta phase transformation point, upsetting, drawing-out and air cooling after forging are continued, and a blank is obtained; the blank is heated to the temperature below the beta phase transformation point, and upsetting, drawing and air cooling are conducted; heating to a temperature above a beta phase transformation point, homogenizing, upsetting, drawing out and air-cooling; finally, heating to below a beta phase transformation point, upsetting, drawing to a target diameter, and cutting to obtain a forging stock; the forging stock is subjected to die forging forming in an isothermal forging mode, the strain rate is adjusted in a self-adaptive mode according to the crystal characteristics of the forging stock, and a die forging blank is obtained; and after standing in water, carrying out aging heat treatment, and carrying out air cooling after heat preservation to obtain the titanium alloy beta-phase crystal. According to the method, the forging effect is optimized, and the uniformity of beta-phase crystals of the titanium alloy is ensured.