429 results about "Metal forming" patented technology

The invention provides a plate forming control method and device based on deep learning, and relates to the technical field of stamping control, and the method comprises the steps: training an original CNN model through a sample data set, and obtaining an intermediate CNN model; the sample data set comprises plate static data and springback data; the plate static data comprises initial size parameters and material parameters; the rebound data comprises a first displacement field after the pressure head is evacuated and the plate is rebounded under different punching depths; determining displacement field compensation values corresponding to the different stamping depths based on a first displacement field error corresponding to the experimental data and the simulation data before the rebounding of the plate under the different stamping depths and a second displacement field error after the rebounding of the plate; adjusting the parameters of the intermediate CNN model by using the displacement field compensation value until the prediction error of the intermediate CNN model is less than a preset threshold, and obtaining a target CNN model; and the plate static data of the to-be-processed plate and the target forming effect are input into the target CNN model, and the target stamping depth is obtained.

A tailor-welding, spinning and variable-wall-thickness forming method for a large-sized extension section of a liquid propellant rocket engine, which belongs to the technical field of metal forming. The method comprises: performing laser numerical control machining on a GH3044 superalloy to obtain two chord-tangent circles; performing electron beam welding to obtain a complete circle; performing a vacuum solid solution treatment; performing pre-forming to obtain a shallow dish shape; performing a vacuum solid solution treatment; assembling a variable-wall-thickness flat blank and a spinning mandrel of a first spinning die, and then performing spinning on a spinning machine to form a curved generatrix variable-wall-thickness blank part; performing a vacuum solid solution treatment; and assembling the curved generatrix variable-wall-thickness blank part and a spinning mandrel of a second spinning die, and then performing spinning on the spinning machine to form a curved generatrix variable-wall-thickness part. The present invention is mainly used for the manufacturing of an ultra-large-sized GH3044 extension section of the liquid propellant rocket engine, which has a diameter of 1200 mm and a length of 1500 mm, and the product precision reaches a wall thickness tolerance of + / -0.05 mm for each point and a surface profile of ≤3 mm.

The present disclosure discloses a multi-sensor-based hot forming production system for an aluminum alloy sheet metal part and a control method thereof, and belongs to the field of aluminum alloy sheet metal forming manufacturing technology. A plurality of sensors are disposed in the hot forming production system, and closed-loop control of a whole process and adaptive production can be realized based on deformation properties, a microstructure evolution law, and a mechanical property change law of the aluminum alloy sheet metal part. The hot forming production system comprises a control system based on a multi-physical quantity model, an environmental heating furnace, an automated transfer and positioning device, a hot stamping and forming device, and an in-die aging device. By using the hot forming production system and the control method thereof, the product quality and the stability of the forming process can be effectively improved, and the adaptability of the process to form different types of alloys can be enhanced.

The present invention provides a metal molded article, a manufacturing method therefor, and an inspection device having same. The metal molded article has an overall length dimension in a longitudinal direction, an overall thickness dimension in a thickness direction perpendicular to the longitudinal direction, and an overall width dimension in a width direction perpendicular to the longitudinal direction. The metal molded article is divided into a first body region and a second body region in the thickness direction. The lateral surfaces of the first body region are provided with multiple micro-trenches that are grooves formed to be elongated in the thickness direction and arranged side by side all over the entire lateral surfaces of the first body region. The lateral surfaces of the second body region are not provided with these micro-trenches.

To provide a composite structure allowed to facilitate mold release and a method of manufacturing the same.SOLUTION: A composite structure 100 has a bottom plate 1 and a pair of first side plates 3 erected from side edges of the bottom plate 1 and also comprises outer and inner plate materials 10 and 20 formed of metal and a foam 30 formed of a foam material. The outer plate material 10 has an outer bottom-plate portion 11, a first outer side-plate portion 13, an outer surface 10a and an outer opposed surface 10b. The inner plate material 20 has an inner bottom-plate portion 21, a first inner side-plate portion 23, an inner surface 20a and an inner opposed surface 20b. The foam 30 is charged between the outer opposed surface 10b and the inner opposed surface 20b. The outer plate material 10 has an outer rugged portion 16 provided on the outer surface 10a. The inner plate material 20 has an inner rugged portion 26 provided on the inner surface 20a.SELECTED DRAWING: Figure 3

The invention provides a frame flat plate satellite structure based on extrusion and sheet metal forming, and belongs to the field of satellite structure design. According to the satellite structure, modular and standardized design thoughts are adopted for the connecting columns, the cabin body, the frame, the cross beams and the connecting pieces, low-cost and high-efficiency mature forming process means such as extrusion and sheet metal are adopted for components, machining work is greatly reduced, the production cost is effectively reduced, and the production efficiency is improved. According to the satellite structure, splicing and inserting type assembly of products is facilitated through standardized interfaces of parts, flexible adaptability of configuration and load installation is achieved through modular design, and adaptability of the satellite structure to batch and low-cost development is achieved.

The invention relates to an integrated machining method for a niobium-tungsten alloy composite surface variable-wall-thickness thin-wall part, and belongs to the field of metal plate forming. Determining the size of a niobium-tungsten alloy plate according to the size of the composite surface; groove milling is conducted on the spinning clamping position of the niobium-tungsten alloy plate; the machined plate is arranged on a spinning tire, and a tail top is used for clamping and fixing; the variable wall thickness forming of the curved generatrix part is realized by adopting strong shearing spinning and common spinning deep drawing spinning; the equal-wall-thickness forming of the cylindrical part is realized by adopting multi-pass deep drawing and spinning; the tiny allowance of the outer wall is removed through precise turning cutting, and it is guaranteed that the wall thickness meets the product use requirement; polishing the inner and outer surfaces to reduce the surface roughness; the niobium-tungsten alloy plate is used for forming, the material utilization rate is increased, split connection weld joints are reduced through a highly-integrated forming method, and the structural reliability is improved.

The present invention discloses an intelligent detection method for determining forming defects by the offset of the blank contour of a stamping part, belonging to the field of sheet metal forming quality detection. In the present invention, the offset amounts of the contour feature points of the blank in the defective state and the defect-free state are obtained through finite element simulation of the stamping process. After manually annotating the defect types, a training data set and a validation data set are obtained, and based on this, a BP neural network model is constructed and trained to obtain a defect detection model. At the stamping site, a laser rangefinder is used to measure the offset amount of the actual stamping blank contour feature points along the material inflow direction, and the offset amount is input into the BP neural network defect detection model to output the defect judgment result. The method of the present invention greatly alleviates the current manual dependence on stamping forming quality detection and has the advantages of high detection efficiency, high accuracy, and low cost.

The invention belongs to the technical field of simulation application, and particularly relates to a metal forming limit curve prediction method based on a neural network, and the method comprises the steps: obtaining a basic performance capable of representing single-pull performance and a forming limit curve of a material; parameterizing the basic performance and the forming limit curve to obtain a strain parameter and a parameterization curve; obtaining a neural network model, and training the neural network model according to the strain parameters and the parameterized curve; and obtaining input parameters of a to-be-predicted material, and predicting a forming limit curve according to the data parameters and based on the trained neural network model. The data used for training the neural network is wide in source and can be obtained through self experiments according to the mode introduced in the patent, and any existing experimental data can also be used. Predicted results can be used for engineering problems including punch forming process analysis, sheet metal failure prediction and the like, and efficiency and accuracy of related simulation of sheet metal forming are improved.

The invention discloses a method for manufacturing an aluminum alloy thin-wall part through hot shape correction of a rubber bag after sheet metal forming. The method comprises the steps that firstly, an aluminum alloy thin-wall part blank is obtained through sheet metal forming; secondly, the blank is subjected to solution treatment; thirdly, the blank obtained after solid solution treatment is put into a refrigerator to be stored; fourthly, the rigid mold, the rubber bag and the like are installed on a press machine, overall heating is conducted, and the temperature is kept stable; fifthly, the blank obtained after solid solution is rapidly placed above a hot-state rigid mold, and positioning of the rigid mold and the blank is completed; 6, quickly closing the die, pumping hydraulic oil into the rubber bag, and increasing the pressure of the press machine to the set pressure; seventhly, the rubber bag extrudes the blank to enable the blank to be tightly attached to the rigid mold, and the mold temperature is transmitted to the blank; 8, under the combined action of high pressure and a thermal field, the aluminum alloy is subjected to aging strengthening and stress relaxation, and springback is reduced; 9, unloading the pressure of the rubber bag and the hydraulic machine; and 10, opening the press machine to take out the blank, and uniformly cooling in a cooling tool to obtain a thin-wall part finished product.

The invention discloses a metal forming punching device with a positioning structure and a using method thereof, and relates to the technical field of punching machines, the metal forming punching device comprises a punching machine body placed on the ground, the telescopic end of an oil cylinder at the top of the punching machine body is fixedly connected with an upper die base, and the bottom of the punching machine body is fixedly connected with a lower die base; a supporting frame is slidably connected to the outer side of the lower die base, and positioning structures are arranged on the two sides of the top of the supporting frame. According to the metal forming stamping device with the positioning structure and the using method of the metal forming stamping device, accurate transverse positioning and one-way stepping feeding of a metal material plate are achieved through the double-positioning clamping block, the four-point contact pulley block and the ratchet wheel system, it can be guaranteed that the material plate is kept stable in the stamping process through the synergistic effect of the driving wheel and the movable wheel, deviation is avoided, and the stamping quality is improved. And by controlling the downward moving distance of the rack, the rotation angle of the gear, the number of rotation turns of the first spline shaft and the final step pitch of the material plate driven by the driving wheel to move are adjusted.

An electromagnetic field assisted laser additive manufacturing device and method comprises a laser cladding mechanism, an electromagnetic field regulation and control mechanism and an electromagnetic impact mechanism, the laser cladding mechanism plans and controls a deposition path of a laser cladding head through a laser cladding mechanical arm, and the electromagnetic impact mechanism plans and controls a moving path of an electromagnetic impact coil through an electromagnetic impact mechanical arm. The variable curvature characteristic of a deposition path in the additive manufacturing process is adapted; an electromagnetic field is introduced in the metal laser additive manufacturing process, a substrate is preheated through electromagnetic induction heating, a molten pool is regulated and controlled through electromagnetic force, and metallurgical defects are reduced from the source; and meanwhile, by means of high-speed pulse electromagnetic force, synchronous impact is conducted on the surfaces and the side faces of the multiple layers of welding beads with the deposition path curvature continuously changing, then metallurgical defects such as air holes, incomplete fusion and cracks in the metal laser additive manufacturing process are restrained, grains are refined, residual stress is reduced or even eliminated, and high-performance and high-precision additive manufacturing of metal forming parts is achieved.

The invention provides a forming method and a forming die for a ribbed skin product, relates to the technical field of metal forming, and aims to solve one of the technical problems that the ribbed skin product is long in processing time consumption, difficult to release residual stress, difficult to guarantee dimensional precision and strength and high in cost. The forming method of the ribbed skin product comprises the following steps that a forming die is provided, and the forming die comprises a bracket and a bottom block; determining a blank model according to the model of the ribbed skin product, and cutting the blank according to the blank model; the cut blank is placed in a forming die, and the blank is located on the bottom block; and the blank is rolled through a pressing roller, and a ribbed skin product is formed. The forming method is short in processing time consumption.

The invention discloses a follow-up type double-face induction heating auxiliary incremental forming device, method and equipment and a medium, and relates to the field of sheet metal forming. The forming tool heads are fixed to the tail end of the mechanical arm, the two sides of the to-be-machined plate are each provided with one forming tool head, and the forming tool heads are used for extruding the to-be-machined plate to enable the to-be-machined plate to deform; and the electromagnetic induction heating device is rotationally connected with the mechanical arm through a mounting bracket, and the electromagnetic induction heating device is used for providing an electromagnetic field to heat the to-be-processed plate. And the processing performance of the plate is improved in an electromagnetic induction auxiliary heating mode.

The invention provides a multi-manipulator collaborative cabin integrated additive manufacturing method and system. The multi-manipulator collaborative cabin integrated additive manufacturing method comprises the steps that a novel cabin coaxial powder feeding laser additive manufacturing model is established; segmenting into blocks according to the features; performing layered slicing according to the structural characteristics of the segmented blocks; performing track filling on each slice layer of each segmented block according to the shape characteristics of the slice layers; an optical head is selected for additive manufacturing according to the structural features; manufacturing is completed through heat treatment, machining and detection, and a final product is obtained. A coaxial powder feeding laser additive manufacturing mode is adopted, integrated forming of the cabin skin and the built-in hanging point can be achieved, compared with a traditional manufacturing mode, the flexibility degree is higher, and the problem that the welding seam quality is difficult to guarantee due to welding and machining after metal plate forming is avoided; the method saves the processing cost and period, adapts to complex design, and can accelerate the novel iteration speed.

The invention belongs to the technical field of metal forming machining, and provides a micro-channel structure manufacturing process which comprises the steps that channels are machined in the surface of a raw material plate, and a bottom plate is obtained; diffusing and welding a cover plate on the surface of the bottom plate to cover the bottom plate to obtain a first prefabricated plate; forming a groove in the surface of the first precast slab to obtain a second precast slab; pressing and forming the second precast slab by using a mold to obtain a third precast slab; and the groove in the surface of the third prefabricated plate is subjected to filling welding to obtain the micro-channel structure with the curved surface. Before compression molding, the grooves are formed in the surface of the first prefabricated plate on the outer side of the bending direction of the designed micro-channel structure, and the grooves can increase the extension degree of ribs between adjacent micro-channels, reduce the extension degree of the outer side walls of the micro-channels and even eliminate extension of the outer side walls of the micro-channels, so that the outer side walls of the micro-channels are prevented from being thinned; therefore, the wall thickness of the micro-channel is consistent, and the structural integrity and strength performance of the micro-channel are ensured.

The invention discloses a springback compensation control system for a metal stamping part, and belongs to the technical field of metal plate forming. The system comprises a stress memory prediction module, a fractal compensation analysis module, a phase change compensation regulation and control module, a compensation decision fusion module and an execution feedback optimization module. The stress memory prediction module extracts stress evolution characteristics of the stamping process through a multi-scale memory network and a time decay attention mechanism; the fractal compensation analysis module adaptively adjusts the compensation grid density based on the fractal dimension to realize optimal configuration of computing resources; the phase change compensation regulation and control module predicts the phase change behavior of the material through the thermal-mechanical coupling constitutive model and calculates the compensation correction amount caused by phase change; the compensation decision fusion module intelligently fuses three compensation strategies by adopting Bayesian reasoning and a spatial modulation function; and the execution feedback optimization module realizes continuous optimization of the system through online learning. According to the method, the influence of three dimensions of stress history, geometric complexity and material phase change is comprehensively considered, accurate prediction and compensation of the springback behavior are achieved, and the forming precision and production efficiency of the metal stamping part are remarkably improved.

The utility model relates to the technical field of power distribution cabinet processing, in particular to a power distribution cabinet sheet metal punch forming device which comprises a base, a supporting vertical plate and a top plate, sheet metal forming lower dies are installed at the two ends of the top of the base through supporting plates, and sheet metal forming cavities are formed in the sheet metal forming lower dies. The corners of the bottom of the metal plate forming cavity are each provided with a stator groove, the bottom of each stator groove communicates with a reserved hole, a top piece is arranged in each stator groove, and a top rod is welded to the bottom of each top piece and penetrates through the corresponding reserved hole. An electric cylinder B is connected to the position, located between the supporting plates, of the top of the base through a connecting disc, and a connecting plate is installed on an output shaft of the electric cylinder B through a screw; according to the power distribution cabinet metal plate punch forming equipment, automatic demolding and discharging are achieved, the material blocking phenomenon is avoided, force application and pushing are conducted at the four corners of the bottom of a power distribution cabinet metal plate at the same time, and deformation of the power distribution cabinet metal plate during demolding is avoided.

A method for repairing a zone of a metal structural aircraft part having a protection defect in the vicinity of an orifice for receiving a fastener. There is a step of positioning an isolation element on the zone around the orifice, a step of applying a coat of paint to the zone, covering the isolation element, and a step of inserting a metal fastener into an orifice of the isolation element, prior to or following the step of applying the coat of paint. The metal of the fastener is in contact with the isolation element, itself in contact with the metal forming the aircraft structure.

The invention discloses an asymmetric aluminum profile extrusion process simulation method, and particularly relates to the technical field of metal forming simulation. Constructing an asymmetric profile geometric model and extracting key structure parameters; establishing a multi-cavity welding die heat-force coupling simulation model; constructing a dynamic recrystallization structure evolution model; setting initial conditions of an extrusion process and performing finite element simulation; difference comparison is carried out on the simulation result and historical working conditions, an abnormal area is identified, and a flow track feature vector is extracted; a microstructure evolution path is inversed in combination with the microstructure parameters, and a defect prediction matrix is generated; solving the optimal process parameters through a numerical optimization algorithm, and re-simulating and verifying whether the distribution of the tissue and the stress field reaches the standard or not; according to the method, prediction of tissue defects and intelligent optimization of extrusion parameters can be achieved, and the quality control capacity of the asymmetric profile extrusion process is improved.

The invention belongs to the field of metal forming and manufacturing, and particularly relates to a pipe fitting machining method and device based on a discrete magnetic collector, the discrete magnetic collector is arranged between a driving coil and a pipe fitting to be bulged, the discrete magnetic collector comprises a first magnetic collector ring and a second magnetic collector ring, and the cross section of the first magnetic collector ring and the cross section of the second magnetic collector ring are both trapezoidal. And the discrete magnetic collector and the outer surface of the driving coil are fixedly connected through a reinforcing material and are packaged into a whole. The first magnetic collector ring is arranged at the end of the pipe fitting forming area, the sectional area of the first magnetic collector ring is larger than that of the second magnetic collector ring, radial electromagnetic force borne by the end of the pipe fitting forming area is increased, the uniformity of the forming area is better after the pipe fitting is formed, and the pipe fitting forming effect can be improved. According to the invention, the structural strength of the coil is enhanced by using the discrete magnetic collector, so that the electromagnetic field intensity generated by the induced eddy current of the pipe fitting in the coil is reduced, and the electromagnetic force borne by the coil is fundamentally weakened while the forming effect is not influenced, so that the coil can be better protected.

The discharging manipulator comprises a power supply and an electrolytic furnace body, one side of the electrolytic furnace body is provided with a discharging device, the discharging device comprises a lifting support, the upper end of the lifting support is provided with a liftable horizontal support, the horizontal support is provided with a clamping mechanism, and the clamping mechanism is connected with the power supply. A forming device is arranged at the lower end of the lifting support, the clamping mechanism comprises a first motor and a mounting seat, a clamping arm is arranged on the mounting seat and comprises a first rack driven by the first motor, a connecting rod is arranged on the first rack, a clamping jaw head is arranged at one end of the connecting rod, a hinge block is arranged below the mounting seat, and a clamping jaw is arranged at the other end of the hinge block. The connecting rod is hinged to the hinge block, the forming device comprises a turnover device and a collector arranged on the turnover device, and a mold is arranged on one side of the collector. The clamping device is stable in clamping and high in load bearing capacity, the yield and quality of formed metal are improved, and losses caused by abnormal clamping are reduced.

The utility model relates to the field of dies, in particular to a metal forming stamping die which comprises a base, the top of the base is connected with an upper stamping die through a driving assembly, a die supporting seat is fixed to the center of the top of the base, and a lower stamping die is detachably installed on the top of the die supporting seat. The upper stamping die is provided with a die supporting seat, the lower stamping die is provided with an automatic demolding assembly, the top of the base is provided with a protection assembly, and the upper stamping die, the die supporting seat and the lower stamping die are all located in the protection assembly. And moreover, the protection function can be achieved, closed type punching operation is carried out, surrounding personnel are effectively protected, and safety is greatly improved.

The invention belongs to the technical field of plate forming, and discloses a separating chain type roller punching edge pressing device, system and method with flexible and adjustable edge pressing force, the edge pressing device comprises a first module, a second module and a linear motor edge pressing module, one end of the first module abuts against external roller punching equipment, and the other end of the first module abuts against external roller punching equipment; the other end of the first module is matched with one end of the second module to clamp a plate; the other end of the second module can be embedded between a pair of blank pressing tracks of the chain type transmission mechanism and synchronously moves along with the chain type transmission mechanism; the linear motor blank-pressing die sets are arranged on the two sides of the second module in pairs and limited between the blank-pressing track and the plate, and a pressure sensing unit is arranged at one end of each linear motor blank-pressing die set and used for detecting the actual blank-pressing force in real time; the linear motor edge pressing module can adjust linear thrust in real time based on actual edge pressing force, so that flexible edge pressing is achieved through the linear motor edge pressing module and the first module. According to the flexible edge pressing device, the edge pressing force can be intelligently adjusted in real time according to the actual requirement in the plate deformation process, and flexible edge pressing is achieved.

The invention relates to an electric arc additive design-simulation-reinforcement-construction integration method for a curved metal thin shell, which comprises the following steps of: adopting a metal wire, and obtaining a three-dimensional structure model of a metal thin shell structure by utilizing the curved surface shape optimization design of a shell unit; simulating and predicting the deposition of the exposed thin shell structure; simulating and predicting the deposition of the reinforced thin-shell structure; and reinforcing thin-shell metal 3D printing construction. The method has the beneficial effects that the stress and deformation distribution and amplitude of the exposed thin shell structure are obtained through deposition simulation prediction with low cost, and reinforcement measures are set based on the stress and deformation distribution and amplitude, so that excessive deformation in the printing process of the electric arc additive process is avoided to a great extent, and the service life of the electric arc additive process is prolonged. Printing failure and printing repositioning caused by excessive deformation are avoided, and the forming quality and the material performance of the metal forming structural part are effectively guaranteed.

The invention relates to the technical field of metal forming machine tool control, and provides a new energy automobile part forging machining method and a temperature regulation and control method thereof.The new energy automobile part forging machining method comprises the steps that part surface temperature data, machine tool pressure data, part stress data and environment wind speed data at a plurality of moments in the part forging machining process are obtained; acquiring a plurality of monitoring time periods; the change trend reduction condition of the temperature data is analyzed, and the forging temperature loss rate of the part is determined in combination with environment wind speed data; performing similarity analysis on the stress data of each position and the pressure data of the machine tool to obtain the machining stress of each position on the surface of the part; the processing temperature distribution nonuniformity is obtained; the temperature change non-smoothness is obtained; quantizing the temperature control lag degree of each monitoring time period; and the response coefficient of the forging machining temperature control system is determined, and feedback adjustment is conducted on the temperature control system through a PID controller. The invention aims to solve the problem that the machining quality is influenced by frequent temperature adjustment in the forging machining process.

The present application relates to the technical field of liquid rocket engine nozzle, and discloses a manufacturing method of an extension section of a large-scale liquid rocket second-stage engine nozzle, which is characterized in that the extension section is divided into n cylinder sections according to the size of the plate and the elongation rate of the plate, and each cylinder section is divided into m melon pieces to be prepared by means of tailor welding; the number n of the cylinder sections ensures that the number of the girth welds of the extension section is the least, and the welding of the girth welds is maximally avoided; the cylinder sections of the extension section are obtained by stress relaxation heat correction treatment of preformed cylinder sections, and the uncontrollable welding deformation problem is overcome. The present application solves the problem that the uncontrollable deformation caused by the springback of the sheet metal forming in the block welding leads to the difficulty in guaranteeing the profile tolerance of the inner surface of the nozzle extension section, improves the welding quality, reduces the rejection rate and production cost of the finished product, improves the production efficiency, has a wide application prospect, and any large-diameter thin-walled product can be processed according to the method of the present application.

The utility model discloses a metal plate forming die, which relates to the technical field of metal plate dies, and comprises a die body, a base arranged at the bottom of the die body and used for mounting the die body, and a connecting mechanism arranged between the die body and the base, the connecting mechanism comprises two sets of mounting grooves formed in the top of the base and two sets of mounting rods fixedly arranged at the bottom of the mold body and inserted into the mounting grooves in a matched mode, and a positioning mechanism is arranged between the mold body and the base. The mold body and the base are connected by inserting the mounting rods into the corresponding mounting grooves, meanwhile, when the mounting rods are inserted, the ratchet wheels are driven by the oblique teeth to rotate in one direction, the inserted mounting rods can be fixed through self-locking between the ratchet wheels and the pawls, and therefore the mold body is mounted; the positioning columns can be automatically inserted into the corresponding positioning grooves in the inserting process of the mounting rods, so that the mounting rods are positioned, the mounting and fixing process of the mold body can be completed only by completely inserting the mounting rods into the mounting grooves, and the mold is more convenient and rapid to use.

The utility model belongs to the technical field of metal forming machining, and particularly relates to an energy-saving metal forming press machine which comprises a base, an intermittent rotating mechanism is arranged at the upper end of the base, and the upper side of the intermittent rotating mechanism is movably connected with a machining table internally provided with a connecting hole. According to the device disclosed by the utility model, the electric hydraulic rod I drives the pushing plate to move downwards, so that the rotating shaft I can be driven to rotate under the action of the gear, the toothed plate, the worm gear and the worm which are arranged; furthermore, the effect of driving a rotating push disc to rotate by one circle can be achieved under the cooperation of a chain wheel I, a chain wheel II, a rotating shaft IV, a bevel gear I, a bevel gear II and a rotating shaft III, and the rotating shaft II can be driven to rotate under the cooperation of an arranged intermittent rotating plate in the process of driving the rotating push disc to rotate; and then the process of interchanging the positions of the three forming cylinders can be achieved under the cooperation of the arranged circular mounting plate.

This invention discloses a simulation method for the asymmetric aluminum profile extrusion process, specifically relating to the field of metal forming simulation technology. The method involves: constructing an asymmetric profile geometric model and extracting key structural parameters; establishing a multi-cavity welding die thermo-mechanical coupling simulation model; constructing a dynamic recrystallization microstructure evolution model; setting initial extrusion process conditions and performing finite element simulation; comparing the simulation results with historical conditions to identify abnormal regions and extract flow trajectory feature vectors; combining microstructure parameters to invert the microstructure evolution path and generate a defect prediction matrix; solving for the optimal process parameters using a numerical optimization algorithm and re-simulating to verify whether the microstructure and stress field distribution meet the standards. This method can achieve prediction of microstructure defects and intelligent optimization of extrusion parameters, improving the quality control capability of the asymmetric profile extrusion process.