60 results about "Composite fabrication" patented technology

The invention discloses an additive and subtractive composite manufacturing process planning method for element runner structure features, which comprises the following steps: S1, analyzing the feature structure of a runner, optimizing the runner for additive and subtractive composite manufacturing, and splitting a multi-runner structure into a plurality of single-runner structures; s2, a machining strategy is set, namely, the single runners are machined one by one in sequence, and a single-runner additive machining strategy is machining along a centroid shaft; s3, developing a collision detection algorithm for flow channel additive and subtractive machining, and circularly solving a machining area segmentation plane by using the collision detection algorithm along a flow channel centroid shaft to obtain a flow channel additive and subtractive alternate area division scheme; s4, generating specific additional material and subtractive material processing procedures; and S5, post-processing to generate a processing code, and importing the processing code into additive and subtractive composite manufacturing equipment for processing. According to the invention, the process planning result without collision and with high processing efficiency can be quickly and efficiently obtained.

The application discloses an arc additive and subtractive composite manufacturing process planning method and system, and specific steps of the method include three-dimensional modeling, slicing and layering, collision interference detection, cutter accessible area correction, interference identification to obtain an initial machining sequence, and process merging optimization to obtain an optimal process planning scheme. Compared with the prior art, the application proposes a cutter accessible area correction method fusing arc additive process characteristics, and realizes initial partitioning of the component without interference. On this basis, process merging optimization is carried out with the optimization target of minimizing the number of additive and subtractive process alternations, and a process planning scheme satisfying the interference-free constraint is obtained. Compared with the prior art, the application effectively solves the technical problems of poor process planning adaptability, process redundancy, high alternation cost, single manufacturing process data acquisition, and lack of real-time monitoring and intelligent control in the arc additive and subtractive composite manufacturing.

This invention belongs to the field of additive-subtractive composite manufacturing technology, and discloses a five-axis linkage additive-subtractive composite machine tool and control system. The machine bed base assembly has left and right guide rail seats symmetrically fixed on both sides of its top. The worktable is fixed in the middle of the machine bed between the two guide rail seats. An integral crossbeam is mounted across the top surface of the left and right guide rail seats and can move linearly along the X-axis. Two independent machining units are mounted in parallel along the Y-axis on the integral crossbeam: the subtractive side crossbeam slide plate carries a subtractive slide block and a subtractive electric spindle actuator, and the additive side crossbeam slide plate carries an additive Z-axis slide table and a double-swing additive head. The worktable is divided along the X-axis into a subtractive-specific machining area, a composite machining area, and an additive-specific machining area. The two machining units can operate independently in their respective dedicated areas, or enter the composite machining area at different times to collaboratively complete the additive-subtractive composite machining. This invention combines high structural rigidity with machining flexibility, avoids secondary workpiece clamping errors, and significantly improves machining efficiency and accuracy.

The invention belongs to the technical field of metal explosive cladding manufacturing, and discloses an explosive welding initiating explosive forming mold, an initiating explosive column and an explosive welding method. The mold comprises a pipe body and a cone assembled in the pipe body. The top end of the cone is upward, and a gap is reserved between the bottom face of the cone and the lower end face of the tube body, so that an upper columnar charging cavity and a lower conical energy gathering cavity are formed in the tube body. By means of the simple split design, traditional manual explosive pit digging operation is converted into a standardized process, the energy-gathered initiating explosive column with the highly-consistent shape, size and explosive loading amount is prepared, personal errors are thoroughly eliminated, and repeatability of initiation energy is guaranteed. And meanwhile, the bottom energy gathering cavity structure is beneficial to improving the energy utilization rate, and is particularly suitable for explosive welding of the multi-layer metal plate with the medium thickness. The device has the remarkable technical advantages of simple structure, low cost, time-saving operation, safety, high efficiency, batch production and the like.

The invention relates to the technical field of automobile roof manufacturing, in particular to an automobile roof material composite manufacturing process which comprises a workbench, a gluing roller set and an extrusion roller set, the workbench is used for laying non-woven fabric and comprises symmetrically-arranged main plates, and the opposite sides of the main plates on the two sides are provided with auxiliary plates hinged to the main plates; the gluing roller set is located above the auxiliary plate, the extrusion roller set is arranged below the auxiliary plate, the extrusion roller set and the gluing roller set are correspondingly arranged, the extrusion roller set comprises a first extrusion roller and a second extrusion roller, the first extrusion roller and the second extrusion roller are arranged in a relative rotation mode, and the PU plate and the coating layer are extruded and compounded through the first extrusion roller and the second extrusion roller to form a ceiling base material. Traditional manual stacking is replaced with an automatic means, accurate positioning and efficient compounding of multiple layers of materials are achieved, and therefore the production efficiency is improved, the good attaching degree between the layers of materials is guaranteed, and the stability of the product quality is guaranteed.

The application belongs to copper alloy material for laser additive manufacturing, and particularly relates to a kind of copper plate material for laser composite manufacturing precision forging machine impact resistance wear resistance and preparation method thereof.Copper alloy material is added solid lubricant Ni-M O S2 and wear-resistant hard phase TiB2 copper-based alloy powder, including the following mass percentage components: Ni-M O S2 powder 1%-10%, TiB2 powder 5%-15%, the balance is copper-based alloy powder; Copper-based alloy powder is including the following mass percentage components: 5%-12% Ni, 9%-10% Sn, 4%-5% Fe, 0.2%-1% Al, 0.3%-0.8% Co, 1.2%-5.5% Ti, the balance is copper.The application is cladded after adopting coating material to the surface of base material, with excellent impact resistance, the wear and tear amount within the service life is equal to imported, but the overall manufacturing cost is far lower than imported copper plate;Using composite manufacturing method, while guaranteeing service life, it can reduce enterprise production cost.

A kind of composite manufacturing method of blade leading edge titanium alloy reinforcing edge hot creep and diffusion connection, titanium alloy reinforcing edge upper and lower thin-walled prefabricated parts are respectively prepared by the way of cutting plate material, titanium alloy reinforcing edge middle layer block prefabricated part is prepared by the way of cutting titanium alloy block material;After being assembled, the upper thin-walled prefabricated part, the core mold, the middle layer block prefabricated part and the lower thin-walled prefabricated part are arranged between the upper and lower molds, and the prefabricated part is bent and attached to the mold by cold pressing, and the titanium alloy reinforcing edge is obtained by composite forming after die closing.The composite method of hot creep and diffusion connection after piece cold pressing is used to process leading edge reinforcing edge once, which can significantly improve the forming efficiency and material utilization rate, shorten the processing cycle, and at the same time, the size precision and forming quality of reinforcing edge can be well controlled.

A quality control system may include a controller configured to be communicatively coupled with a monitoring assembly including one or more detectors. The controller may implement two or more artificial intelligence quality control (AIQC) modules associated with two or more process steps for fabricating a composite material, where each of the two or more AIQC modules is associated with a different one of the two or more process steps. A particular AIQC module may receive monitoring data associated with the particular process step for a workpiece, generate quality control data using a particular AI model, and update the particular AI model based on testing data associated with the workpiece from one or more testing tools after at least the particular process step.

A multifunctional additive-subtractive composite manufacturing apparatus and its method of use are disclosed. The apparatus includes a first-arm robot, a welding torch, a second-arm robot, an additive-subtractive composite processing mechanism, and an additive manufacturing substrate. The additive-subtractive composite processing mechanism includes a frame, three sets of hammer milling composite processing equipment, and two sets of equipment attitude adjustment components. The hammer milling composite processing equipment includes an outer protective cylinder, an elastic coil, an inner isolation cylinder, an iron core hammer rod, a milling drive motor, a quick tool changer, a hammer head, a milling cutter, an electrical control module, a buffer spring, a buffer washer, a hammer rod positioning screw, a laser displacement sensor, a shifting slip ring, and a cam paddle. This invention realizes the combination of additive, subtractive, and additive manufacturing processes, and can perform additive manufacturing of metal components with three-dimensional hammering composite processing, additive manufacturing with cold and hot hammering composite processing, and additive manufacturing with end-face hammering and side milling composite processing. It features good controllability, good processing uniformity, high processing accuracy, and high processing stability.

The invention discloses an additive and subtractive composite manufacturing online monitoring method, which comprises the following steps of: acquiring strain characteristics in an additive and subtractive process by utilizing a monitoring and feedback control system comprising a substrate, a strain gauge, a strain collector, a data processing computer, an additive and subtractive composite forming control system and a motion system; according to the method, real-time monitoring of substrate deformation in the additive and subtractive composite manufacturing process is achieved, whether process adjustment of additive and subtractive composite manufacturing needs to be carried out or not is judged by comparing strain signals with strain signal preset values in a process adjustment database, feedback control is achieved, the local large strain phenomenon in the additive and subtractive manufacturing process can be found in time, and the production efficiency is improved. The method has the advantages of preventing crack defects, monitoring the state of the cutter, optimizing the roughness and dimensional precision of the machined surface, solving the problem of part machining failure caused by hot cracks or low precision in additive and subtractive composite manufacturing, and having wide application prospects and remarkable technical advantages.

The application belongs to the field of additive manufacturing, and specifically discloses a 3D printing and mechanical processing composite manufacturing system and a workpiece manufacturing method. The composite manufacturing system comprises a servo turntable, a first mechanical arm, an additive manufacturing module integrated at the tail end of the first mechanical arm for forming a solid member on the servo turntable, the additive manufacturing module comprising a direct writing forming nozzle and at least one fused deposition forming nozzle, a second mechanical arm, a subtractive and detection module integrated at the tail end of the second mechanical arm for 3D scanning and milling processing of the solid member, the subtractive and detection module comprising a 3D scanning device and a mechanical milling device, and a control module electrically connected with the servo turntable, the first mechanical arm, the additive manufacturing module, the second mechanical arm and the subtractive and detection module. The application can solve the technical problem that heat-sensitive non-metallic members are difficult to balance between efficient forming and high-precision processing, effectively improves the functional integration level of the equipment, and simplifies the manufacturing process of multifunctional members.

The application discloses a kind of complex inner flow channel of engine cylinder body additive-subtractive composite manufacturing method, comprising the following steps, step 1, by additive manufacturing, engine cylinder body is printed to the preset height of complex inner flow channel, the printing work of base body is completed;Step 2, carry out subtractive work on base body, obtain one part structure of complex inner flow channel;Step 3, independently carry out additive-subtractive composite manufacturing outside cylinder body, another part structure of complex inner flow channel is manufactured into shape;Step 4, the one part structure of complex inner flow channel in step 2 is aligned with the another part structure of complex inner flow channel in step 3, welding is completed to manufacture the complex inner flow channel of engine cylinder body.Achieve different flow channel manufacturing without changing additive manufacturing direction, and the purpose that inner surface can be complete inner surface processing.

This invention relates to the field of high-temperature alloy additive and subtractive manufacturing technology, and more specifically to a method and system for additive and subtractive manufacturing allowance planning and code generation based on deformation stress prediction. The method includes the following steps: S1, acquiring deformation distribution data, key point deformation data, residual stress distribution data, and residual stress layer thickness data of the component during high-temperature alloy additive manufacturing; S2, setting an accuracy threshold to identify out-of-tolerance areas, and determining the removal allowance based on the stress layer thickness; S3, establishing an optimization model to minimize deformation and stress layer thickness, and solving for the dynamic sequence of additive parameters in the height direction; S4, generating a basic subtractive manufacturing path, adjusting cutting parameters, and achieving a smooth transition; S5, implementing additive and subtractive manufacturing based on the dynamic sequence and code. This invention achieves minimized control of component deformation and residual stress, and improves processing accuracy and performance by predicting deformation and residual stress data and dynamically optimizing additive and subtractive manufacturing process parameters and processing paths.

The invention discloses modularized quick-change type all-solid-phase additive-equal-subtractive integrated machining equipment and method, and relates to the field of additive-equal-subtractive composite manufacturing, and the modularized quick-change type all-solid-phase additive-equal-subtractive integrated machining equipment comprises a machine tool body, a quick tool changing device, an execution assembly and a wire feeding device. The quick tool changing device is installed on one side of the machine tool body. The execution assembly comprises a spindle and a cooling device, the spindle is connected to the machine tool body and vertically moves relative to the machine tool body, and the cooling device is arranged on the back face of the spindle. The wire feeding device is located on the other side of the machine tool body. An XYZ-direction moving platform and a double-shaft rotary table are arranged on the machine tool body. Solid-phase additive manufacturing, solid-phase material modification treatment and subtractive forming functions are integrated into one device, full-process and full-solid-phase integrated manufacturing is achieved, the mechanical property and forming precision of parts can be remarkably improved, and the device is particularly suitable for integrated, high-performance, low-cost and high-efficiency manufacturing scenes and has wide application prospects. And the application of non-weldable materials such as high-strength aluminum alloy in the high-end manufacturing field such as aerospace can be effectively expanded.

The invention relates to the technical field of functional glass materials and composite manufacturing, in particular to magnetic glass as well as a preparation method and application thereof. The preparation method of the magnetic glass comprises the following steps: S1, glass pretreatment; s2, sealing the bottom of the glass; s3, substrate pretreatment; s4, electrolyte preparation and electro-deposition, wherein electrolyte comprises magnetic metal salt, a complexing agent and a dispersing agent, and electro-deposition is conducted through a three-electrode system; s5, post-treatment: carrying out heat treatment and surface modification; s6, bonding a magnetic film; and S7, an MI process is carried out, wherein a texture mold is adopted, and a micro-nano imprinting technology is adopted. On the basis of combination of electro-deposition and an MI process, the magnetic glass with a large area and a uniform magnetic adsorption function is prepared, and meanwhile it is ensured that the sealing performance, the heat preservation performance and the structural strength of a door body are not affected.

The invention belongs to the technical field of mechanical part composite manufacturing, and provides a metal and engineering plastic composite method which comprises the following steps: providing a metal piece; providing an engineering plastic part; coating an adhesive on the surface of the combination part and / or the surface of the main body part; the threaded connecting part and the threaded hole are screwed and pre-fixed into an integrated assembly; and the edge of the joint part is rolled and riveted. According to the method, a special adhesive is coated, uniform pre-tightening force is generated through screw-thread fit screwing, so that the bonding surfaces of the metal part and the engineering plastic part are tightly attached, a mechanical interlocking foundation is established, and finally, the edge of the metal part is plastically deformed through a rolling riveting technology, and the engineering plastic part is completely wrapped with the edge of the metal part. Through the synergistic effect of all the composite technologies, the production cost and the equipment threshold can be remarkably reduced while the bonding strength and the long-term stability of the bonding surface are ensured, and the method is particularly suitable for multi-variety and small-batch manufacturing of parts such as high-performance valve clacks which have strict requirements for reliability and economical efficiency.

The application provides an electric heating glass micro-nano additive-subtractive composite manufacturing method, which comprises the following steps: pretreating the surface of a glass substrate, depositing a copper film on the pretreated glass substrate to prepare a copper-clad glass substrate; printing a designed electrode pattern on the copper-clad glass substrate by taking photoresist as a mask pattern forming material; performing solidification treatment after printing; etching the copper film by taking the solidified photoresist pattern as a mask to obtain a designed mask electrode pattern; removing the photoresist, cleaning and drying the copper-clad glass substrate; taking the etched copper conductive pattern as a seed layer to plate a metal layer on the seed layer; performing post-treatment on the formed transparent electric heating glass after plating the metal layer; and coating a protective layer on the surface of the post-treated transparent electric heating glass. The application can realize low-cost, high-efficiency and batch manufacturing of large-size and high-performance metal mesh transparent electric heating glass.

This invention discloses a method for generating and controlling transition paths in additive and subtractive manufacturing processes, comprising: acquiring a workpiece model and determining the timing of additive and subtractive alternation; extracting the contour features of the alternating interface slices; calculating the maximum allowable overhang angle based on process parameters and determining whether an overhang structure is formed; performing spatial mapping analysis on the blank allowance after subtraction, and calculating the number of transition support layers and generating transition support path segments when the local blank allowance is insufficient to support the molten pool; generating an interface preheating scanning path when there is a risk of thermal stress concentration; and finally reconstructing the original additive and subtractive machining path and generating machining code. Using this invention, without changing the part design model, smooth process transitions are achieved through path-level dynamic insertion of transition segments, thereby improving interface bonding quality and forming stability.

The application relates to a laser-assisted heating additive and subtractive composite manufacturing method, system and device, and belongs to the technical field of metal material manufacturing. The method comprises the following steps: S1, generating metal laser melting droplets for additive manufacturing; S2, collecting the temperature of a current forming area and the size of a substrate in real time; S3, judging whether the current temperature exceeds a preset value; if yes, adjusting the additive manufacturing process parameters, and returning to S1; if no, obtaining an error existing in the current size; S4, judging whether the error exceeds a threshold range; if yes, performing subtractive processing, re-planning the path of subsequent additive manufacturing, and returning to S1; if no, after the additive processing of the current layer is completed, sequentially performing laser preheating and milling; S5, judging whether all the to-be-formed layers of the component complete the laser preheating and milling processing; if yes, the manufacturing is completed; if no, returning to S1 until all the layers complete the processing. The application improves the stability, efficiency and forming precision of the additive and subtractive composite manufacturing.

The invention provides an interlayer cleaning and auxiliary cooling device and method for additive and subtractive composite manufacturing, and relates to the technical field of electric arc additive manufacturing. The device comprises a supporting frame used for adjusting the direction and fixing the position; a multifunctional brush is arranged at the bottom of the support frame and is used for executing at least one task of cooling, oxide layer removal and cooling liquid cleaning on a formed part on the substrate; the multifunctional brush is connected with the water supply module and the air supply module; wherein the water supply module is used for providing a water source required when the multifunctional brush executes a task; the gas supply module is used for providing a gas source required when the multifunctional brush executes a task; the supporting frame, the multifunctional brush, the water supply module and the air supply module are all connected with the intelligent control module. Through the integrated design of integrated oxide layer removal, cooling liquid cleaning and rapid cooling, the defect problems of air holes, cracks and the like caused by oxide inclusion and cooling liquid residues in traditional additive and subtractive manufacturing are solved.

This application discloses a separator, its preparation method, and its application, belonging to the field of lithium-ion battery technology. The separator includes a base film and a coating formed on at least one side of the base film. The coating includes a polyvinylidene fluoride polymer, a dispersant, a binder, and a surfactant. During preparation, the particle size of the coating slurry meets the following requirements: D10 = 0.1~0.5 μm, D50 = 0.6~1.2 μm, and D90 = 2.8~4.0 μm. Small-particle-size slurry can fill the pores of the coating or base film, forming a denser, defect-free coating structure. This dense structure itself has stronger cohesion, making it less prone to loosening and detachment between particles, thus improving the separator's powder shedding rate. Therefore, in the "thermal composite" cell manufacturing process, it can effectively alleviate separator powder shedding, reduce hipot defects, and meet the requirements of battery production.

The present application belongs to the technical field of laser additive manufacturing, in particular to a method for reducing anisotropy of titanium alloy by laser additive manufacturing and friction stir processing. The method comprises the following steps: step one, obtaining TC11 powder and performing drying treatment; step two, using a set laser scanning strategy, laser powder deposition is performed on the dried TC11 powder in a layered form to obtain a first laser cladding layer; step three, friction stirring is performed on the first laser cladding layer according to a set stirring path until the first laser cladding layer is completely processed; and step four, steps two to three are repeated to complete laser cladding and friction stir processing layer by layer to obtain a formed part. The present application combines the forming advantages of laser additive manufacturing and the microstructure modification advantages of friction stir processing, adopts an "interlayer instant compounding" mode, and constructs a composite manufacturing process, thereby efficiently reducing the anisotropy of TC11 titanium alloy components without additional alloying or complex heat treatment.

The invention discloses a multifunctional additive and subtractive composite manufacturing device and a using method. The device comprises a first arm type robot, a welding gun, a second arm type robot, an equivalent and subtractive composite machining mechanism and an additive manufacturing base plate. The equal subtractive composite machining mechanism comprises a rack, three sets of hammer-milling composite machining equipment and two sets of equipment posture adjusting assemblies. The hammering and milling combined machining equipment comprises an outer protection barrel, an elastic coil, an inner isolation barrel, an iron core hammer rod, a milling driving motor, a quick tool changing connector, a hammer head, a milling cutter, an electric control module, a buffer spring, a buffer gasket, a hammer rod positioning screw, a laser displacement sensor, a gear shifting sliding ring and a convex block shifting piece. According to the device and the method, compounding of the additive manufacturing process, the equal material manufacturing process and the subtractive manufacturing process is achieved, additive manufacturing metal components can be subjected to additive and three-way hammering combined machining, additive and cold and hot hammering combined machining and additive, end face hammering and lateral milling combined machining, and the device and the method have the beneficial effects of being good in controllability, good in machining uniformity, high in machining precision and high in machining stability.

The invention discloses 3D printing additive and subtractive composite manufacturing equipment and a forming method. The 3D printing additive and subtractive composite manufacturing equipment comprises a forming platform, a rotary driving mechanism, an extrusion unit, a subtractive unit and a three-dimensional linkage mechanism. The forming platform is used for bearing and fixing a printing base body. The output end of the rotation driving mechanism is connected with the forming platform and used for driving the forming platform to rotate around the central axis perpendicular to the bearing plane of the forming platform. The extrusion unit is arranged above the forming platform and is provided with an extrusion end capable of directionally extruding a molten or semi-molten printing material; the material reducing unit is arranged above or on the side portion of the forming platform, and the emitting direction of the laser emitting end of the material reducing unit faces the forming platform. High polymer materials are processed through non-contact laser energy, damage to material performance caused by high temperature generated by friction during contact processing of a traditional milling cutter is effectively avoided, and meanwhile, laser cutting has higher processing precision and efficiency.

The invention discloses a digital twin system of an additive and subtractive composite manufacturing machine tool for forging die defect repair, and belongs to the technical field of equipment virtual-real fusion. The method aims at solving the problems that in the prior art, a surfacing path is difficult to accurately match an actual defect form, a collaborative planning mechanism is lacked, effective virtual-real fusion is lacked, and a closed-loop control mechanism is lacked. The system comprises a data acquisition module, a digital model reconstruction module, a process planning and simulation module, a machine tool virtual-real synchronization module, a quality prediction and adaptive control module and a man-machine interaction module. Defect data are collected through three-dimensional measurement, and a precise defect model is generated through point cloud reconstruction and defect segmentation; collaborative simulation and path optimization of the additive and subtractive process are achieved based on a digital twin machine tool; the machine tool state is mapped through virtual and real synchronization, machining parameters are adjusted online in combination with the quality prediction model, and closed-loop control is achieved. The mold defect repairing precision and the machining controllability are improved, the repairing period is shortened, and the manufacturing cost is reduced.

The invention provides a method and a system for compositely manufacturing a micro-fluidic chip based on embedded direct writing and volume printing. The method comprises the following steps: preparing a photosensitive resin matrix with shear thinning characteristic and sacrificial ink; carrying out embedded direct-writing forming to construct a three-dimensional flow channel framework; calculating and modulating a light field, and generating the light field by adopting different algorithms according to the optical refractive index difference between the ink and the resin; performing photocuring on the chromatography volume to form a chip entity; and removing the sacrificial layer to obtain the micro-fluidic chip. The system integrates direct writing and volume printing modules and is coordinated by a control unit. According to the method, flow channel blockage is avoided through sacrificial ink, the inner wall smoothness is guaranteed through volume printing, multiple material systems are compatible through light field calculation, and the manufacturing quality efficiency is improved; the system realizes composite manufacturing and provides support for large-scale production and application of micro-fluidic chips.

A gantry integrated additive and subtractive composite manufacturing equipment, comprising a machine tool base, a forming platform connected above the machine tool base, a 3-axis gantry milling subtractive device arranged in a sealed forming chamber, a powder feeding mechanism, a powder laying mechanism and a tool magazine installed on the forming platform, a forming base plate arranged in the middle of the forming platform, the forming base plate being connected with a forming cylinder, the forming cylinder being located inside the machine tool base; an optical path system mounting plate is arranged on the upper part of the sealed forming chamber, and an optical path system of an SLM additive device composed of a laser, a beam expander collimator, an optical lens module and a laser galvanometer is arranged on the optical path system mounting plate, the laser galvanometer being opposite to the forming base plate; the 3-axis gantry milling subtractive device and the tool magazine cooperate to realize tool changing; the size of the sealed forming chamber is reduced, the function of adding metal powder during the machining process is realized; the quantitative powder feeding and powder laying functions are realized; good motion sealing performance is achieved, and the machining precision of complex part structures is improved.

The application provides a cold spraying-based equal-material-additive composite manufacturing method for a complex thin-walled part and the thin-walled part, and comprises the following steps: an equal-material machining step of an aluminum alloy plate material and a blank: a preforming of a main structure of a thin-walled part is realized by using an equal-material manufacturing process; a sand blasting step of a preformed main part: a region needing additive machining on the preformed part is subjected to sand blasting treatment; a preheating step: the base material of the whole preformed part is preheated, so that the temperature of the base material is kept constant during the whole cold spraying process; a cold spraying and interpenetrating short-time low-temperature annealing step: an additive manufacturing is performed on the region needing additive machining by using a cold spraying method; and during the cold spraying process, every time the spraying pass is increased by a preset number of times, the cold spraying additive manufacturing part is subjected to low-temperature annealing for a preset length of time; and a machining step: after the cold spraying process is completed, machining is performed according to the size requirement of the part, so that a complex thin-walled part with high precision is obtained.

An additive rolling composite manufacturing method and equipment for a ribbed thin-walled rotary shell includes a substrate, a feeding device mounted on the substrate, two symmetrically arranged lateral support plates connected to the feeding device, and an additive rolling composite structure mounted on the lateral support plates. A rotary lifting platform is connected to the feeding device between the two lateral support plates, and a support mold is mounted on the rotary lifting platform. Gantry supports are mounted on the substrate on both sides of the rotary lifting platform, and hydraulic cylinders are connected to the gantry supports. The additive manufacturing of the ribbed thin-walled rotary shell and the micro-rolling of the deposited layer are realized simultaneously. The micro-rolling of the deposited layer leads to recrystallization, refines the grains of the deposited layer, and reduces its anisotropy. At the same time, micro-rolling can also promote the closure of pores during the additive manufacturing process, thereby comprehensively improving the microstructure and mechanical properties of the additively manufactured ribbed thin-walled rotary shell.

The application provides a laser additive and subtractive composite manufacturing machine tool clamp equipment, which integrates the replacement of a laser processing head and a tool on a machine tool spindle of a same vertical machining tool, and folds the whole clamp mechanism to the vicinity of a machine tool column through a hydraulic rod after the replacement of the laser processing head and the tool is completed, and a cross guide rail is used to realize the positioning problem of the machine tool spindle during the replacement of the laser processing head and the tool; the application comprises a latch gripper device, a precise cross guide rail transmission device and a hydraulic swing arm device; the application realizes the rapid subtractive manufacturing after the additive manufacturing, shortens the additive and subtractive manufacturing processing time, reduces the volume of the additive and subtractive manufacturing equipment, has no influence on the subsequent processing, avoids the influence of the large heat input during the additive and subtractive manufacturing process on the precision and service life of the clamp, and has high positioning precision.