30results about How to "Reduce printing time" patented technology

The invention provides an intelligent photocuring 3D printing model optimization method, and relates to the technical field of photocuring 3D printing, and the method comprises the following steps: obtaining a 3D printing model file uploaded by a user; analyzing geometric information in the model file, and extracting a triangular grid structure, normal vector information and a surface area; key feature areas of curved surfaces, corners and edges in the model are identified, printing parameter data are collected, and a target model summary file is generated; an optimization printing target is defined, an optimization model is generated based on the generative adversarial network, model quality is evaluated through a discriminator network, a multi-target optimization result is analyzed, and an optimal balance point among different targets is found; and testing the optimized model and the printing parameters by using virtual reality, and performing self-adaptive correction according to a simulation test result to adjust to the optimal printing parameters. According to the method, the geometric features and the material attributes of the 3D model are automatically analyzed, potential weaknesses in the model are identified, and the 3D printing model is intelligently optimized.

The invention relates to a variable layer thickness printing method based on SLM (selective laser melting) forming part characteristics, which comprises the following specific steps of: dividing a part into an external surface / thin wall of a quality priority part and an internal filling / entity of an efficiency priority part according to the part characteristics and use performance; respectively slicing the quality priority part and the efficiency priority part obtained by the S I by using slicing software according to the required layer thickness, and setting a proper scanning sequence and an optimized scanning strategy for the sliced model; large-layer-thickness process parameters are given to the efficiency priority part, small-layer-thickness process parameters are given to the quality priority part, and a workpiece or a sample with the good surface metallurgy quality is obtained through SLM printing. A set of complete scheme for improving the printing efficiency through a large and small layer thickness method is formed, the surface metallographic phase of the finished product has no other defects except pores, and the effect is good.

The invention provides a photocuring 3D printing intelligent slicing optimization method based on artificial intelligence, and relates to the technical field of photocuring 3D printing.The method comprises the steps that a target model summary file is generated by collecting a 3D printing model file and printing parameter data; performing slicing processing on model data in the target model summary file to generate model slicing data; analyzing the geometric complexity of the model by using a deep convolutional neural network, and dynamically adjusting the thickness of a slice layer based on a complexity coefficient; through multi-objective optimization of printing quality, time and material consumption, printing setting is dynamically adjusted according to an optimization result; and the printing state is monitored in real time, slice parameters are adjusted according to monitoring data, an optimization result is verified before actual printing, and slices are adjusted and optimized according to a verification result. The 3D printing model file and the printing parameter data input by the user can be automatically analyzed, the printing process is monitored in real time, the slicing parameters are dynamically adjusted, and the printing quality and efficiency are improved.

A dual-mode biological 3D printing head assembly comprises a bottom plate, an in-place device, a UV curing lamp, a normal-temperature printing head and a thermal printing head are arranged on the bottom plate, and the normal-temperature printing head and the thermal printing head are used for printing high-viscosity materials; the bottom plate is further provided with a plurality of electromagnetic valves and a control circuit board electrically connected with the electromagnetic valves, and the control circuit board is used for spot-jet printing of low-viscosity materials. A nozzle is arranged at the bottom of the electromagnetic valve, and a top inlet is communicated with the low-viscosity charging barrel through a gas path; the low-viscosity charging barrel is sequentially communicated with a proportional valve and an air pump through an air path and is used for extruding and discharging materials to the electromagnetic valve; a heating assembly is arranged outside the thermal printing head and comprises a heat conduction block, a heating rod and a thermocouple are arranged on the heat conduction block, and a heat insulation layer is arranged on the periphery. The utility model further discloses a dual-mode biological 3D printer with the printing head assembly. According to the utility model, high-viscosity materials and low-viscosity materials can be printed at the same time, spot spraying and extrusion are combined, the defect that the low-viscosity materials cannot be printed in a pure pneumatic extrusion mode is overcome, and normal-temperature printing and heating printing can be realized.

The invention relates to the technical field of 3D printing, and particularly discloses a supporting method and device for 3D printing sintering, and the supporting method comprises the steps that (1) high-temperature-resistant material powder is laid at the bottom in a high-temperature-resistant box body; and (2) the bottom of a workblank obtained through 3D printing is embedded into the high-temperature-resistant material powder, so that the workblank is supported by the high-temperature-resistant material powder, and gaps generated by shrinkage deformation of the workblank are filled with the high-temperature-resistant material powder during sintering. According to the supporting method and the supporting device for 3D printing sintering, the supporting effect on the workblank is good, the workblank is not prone to deformation in the sintering process and can be easily taken out of the supporting structure, the cost is reduced, and the 3D printing range is widened.

The invention provides a 3D printing rapid prototyping system based on multi-nozzle collaboration.The 3D printing rapid prototyping system based on multi-nozzle collaboration.The 3D printing rapid prototyping system based on multi-nozzle collaborationcomprises a printing unit, a control unit and an auxiliary unit, the printing system comprises a multi-nozzle device and a printing platform, nozzles can be independently controlled, the spacing angle can be adjusted, and the platform can be heated and cooled; the control module covers motion, material and temperature control and central control units, realizes cooperative motion, material supply and temperature control of the spray head and coordinates the work of each unit, and the auxiliary unit comprises a support structure generation and post-processing unit, and the system solves the problems of slow printing speed and limited material color of a traditional single spray head, improves the printing speed, and improves the printing efficiency. Multiple material colors can be printed at the same time, printing quality is improved, and system reliability and stability are enhanced.

The invention provides a 3D printing nozzle multi-direction spiral airflow generator which comprises a shell, a nozzle is arranged in the middle of the shell, a flow guide groove is formed in the bottom of the shell, a spiral airflow generator body is arranged in the flow guide groove, a plurality of air outlets are formed in the spiral airflow generator body in a downward inclined mode, and the multiple air outlets are formed in the outer side of the nozzle in the circumferential direction; air flow generated by the cooling fan flows into the flow guide groove, under the guidance of the spiral air flow generator body, the cooling air flow forms an anticlockwise (overlook angle) air flow vortex and a wind hole area in the center of the vortex air flow around the lower portion of the spray head, and under the help of the cooling effect of the omni-directional spiral air flow cooling, the cooling effect is improved. The fused deposition type 3D printer can successfully print the arm extension structure with the included angle ranging from 0 degree to 85 degrees with the vertical direction under the condition that a supporting structure is not printed, material waste of the FDM printer for printing the supporting structure is reduced, the overall printing time is shortened, the structural reliability of a 3D printing model is enhanced, and the success rate of 3D printing is increased.

The invention provides a method and system for producing false teeth by using 3D printing, and relates to the field of digital design and manufacturing, and the method comprises the following steps: obtaining a 3D false tooth model of the oral cavity of a patient, generating an optimal printing path through a 3D false tooth model path optimization algorithm, automatically generating a support structure according to the 3D false tooth model, the printing path and the structural characteristics of the 3D false tooth model, and carrying out 3D printing on the 3D false tooth model. A simulation model is established, temperature distribution, mechanical properties, a supporting effect and a printing path in the 3D printing process are simulated and analyzed, according to a simulation result, possible problems are predicted, the printing technology is optimized and adjusted to obtain optimized path planning data and adjusted printing parameters, and a machining scheme is formed. Therefore, precision improvement and performance optimization of false tooth production and automatic control of the production process are realized. In combination with closed-loop control of an intelligent feedback mechanism, not only is the product quality improved, but also the production efficiency is enhanced, the cost is reduced, and a new solution is provided for technical upgrading and industrial application in the false tooth production field.

The invention relates to a medical high polymer material 3D intelligent printing method based on a selective laser sintering process. The method comprises the following steps that optimal initial process parameters are recommended based on material characteristics and part requirements; carrying out processing according to the optimal initial process parameters, and monitoring a processing material in real time through a sensor; if machining defects are monitored, an AI model is adopted to calculate and adjust technological parameters, and meanwhile, local repair is carried out on the detected defects; after printing of each layer is completed, the technological parameter database is updated, and technological parameters of subsequent layers are optimized until the machining process is finished; in the printing process, once defects are monitored, the AI model can quickly calculate and adjust process parameters, manual intervention is not needed, and the time for finding and solving problems is greatly shortened; meanwhile, the reinforcement learning algorithm can continuously learn and optimize a process parameter adjustment strategy, so that adjustment is more accurate and efficient, and repeated printing and repair time caused by unreasonable parameters are reduced.

A printing screen with an improved structure comprises a screen frame and screen cloth. The screen cloth is arranged in the screen frame, and the screen cloth is composed of a plurality of yarns. Each yarn is curved and has a plurality of wave crests and a plurality of wave troughs. The screen cloth is provided with a pattern opening area, and the pattern opening area comprises a first pattern part. Wherein the line segment of the yarn in the first pattern part is substantially not provided with a wave trough.

The present invention relates to the technical field of cigarette label printing, specifically to a device and method for efficiently printing the appearance of cigarette box labels, including a main frame, a flattening and pressing mechanism, a first feeding mechanism and a second feeding mechanism, the top of the main frame is fixedly connected to a fixed frame, a lower pressure plate is arranged inside the fixed frame, a hydraulic rod is arranged at the top of the fixed frame, a template is slidably connected to the bottom end of the middle part of the lower pressure plate, a layered guide is fixedly connected to the top end of the middle part of the main frame, a first threaded rod is connected to the middle part of one end of the lower pressure plate through a bearing, and a fixed block is slidably connected to the inside of the receiving groove. The device has a high degree of automation, is very convenient for users, and can achieve two printing effects at one time, thereby improving users' work efficiency, and can also be positioned and fixed during printing, and can also avoid wrinkles or looseness of the packaging paper during printing, thereby improving the quality of printing, and achieving the purpose of cost reduction and gain.

This invention relates to a method for controlling the surface accuracy of elliptical thin-walled compartments in additive manufacturing, belonging to the field of additive manufacturing technology. Addressing the challenges of surface control in additive manufacturing and post-processing of elliptical thin-walled compartments, this invention proposes a surface accuracy control method based on an internally supported dimensional structure. This method includes steps such as additive manufacturing model design of the elliptical compartment and its internally supported dimensional structure, integrated additive design, thermal processing, machining, and removal of the internally supported dimensional structure. The method applies the control of the internally supported dimensional structure extension used in additive manufacturing to the post-processing stage, achieving full-process surface control from additive manufacturing to post-processing, saving product manufacturing time and improving the overall efficiency of additive manufacturing.

This invention belongs to the field of laser additive manufacturing technology, specifically relating to a dual-spot parallel scanning additive manufacturing system and method. A laser generation unit dynamically distributes a laser beam to the first and second optical paths according to a preset energy ratio through polarization beam splitting. The spot generation unit uses two spatial light modulators to modulate the two beams into patterned spots and dot spots respectively. The filtering and imaging unit filters and images the two beams. The parallel scanning unit drives the dual spots to scan synchronously on a powder bed. The control unit performs model slicing and patterned region segmentation, and dynamically allocates energy and synchronously controls all units to work together based on the segmentation results. This achieves a single laser, dual optical paths, irregularly shaped spots, and parallel scanning, simultaneously balancing processing efficiency and forming accuracy, effectively solving the technical problem of traditional single-spot methods that struggle to achieve both efficiency and accuracy.

The invention belongs to the technical field of low-pressure casting, and particularly relates to a low-pressure casting device and method for a large-size aluminum alloy shell metal outer mold composite sand core, the height of a large-size aluminum alloy shell casting is not lower than 600 mm, the inner diameter is not lower than 700 mm, and the average wall thickness is 14-20 mm; the low-pressure casting device comprises a mold system, a sand core system, a pouring system, a chilling block system and a dead head, the pouring system adopts a bottom pouring and stepped pouring mode, the structure of the pouring system is designed according to the height, the transverse characteristic size and the average wall thickness of a casting, the pouring system is deeply optimized, and the casting quality is improved. By adopting the design mode of multiple sprues and circumferentially and uniformly distributed transverse sprues, it is ensured that a feeding channel is solidified later than a casting, the pressure maintaining pressure is continuous and effective, the casting defects of cold shut, air holes, shrinkage cavities, shrinkage porosity and the like are avoided, the mechanical property and air tightness of the large-size casting are remarkably improved, and the cost rate is increased.

The invention belongs to the technical field of 3D printing, and particularly relates to a 3D printer based on liquid surface tension and a printing method. Comprising a light source used for providing curing light, a titration device used for providing a printing material, a film forming structure of the printing material and a printing platform. Wherein the thin film forming structure is provided with a through hole, and the through hole is located in the focal plane of the curing light and is parallel to the surface of the printing platform; the titration device is arranged above the thin film forming structure, the printing material is titrated on the surface of the thin film forming structure, and the thin film forming structure receives the printing material of the titration device and forms a liquid thin film at the through hole. According to the invention, the curing light directly irradiates on the film formed by the printing material for curing, so that the printing time is greatly shortened, the printing efficiency is improved, the overall energy consumption is reduced, the virtual focus problem is eliminated, and higher printing precision is ensured.

The present invention discloses an inkjet printing device and a curing method thereof. The printing device includes a printing unit, a feeding unit, a curing unit and a control unit. The printing unit includes a printing carriage; the feeding unit is arranged below the printing unit, and is used to install the object to be printed and drive it to rotate; during the inkjet process, the curing range of the curing unit covers the image and text area sprayed by other ink nozzles except the transparent ink nozzle, but cannot irradiate the transparent ink area sprayed by the transparent ink nozzle, the curing unit moves synchronously with the printing carriage, and the control unit controls the reciprocating movement of the printing carriage along the first direction, the ink droplet spraying when each nozzle reaches the top of the area to be printed, the rotational movement of the object to be printed, and the curing operation of the curing unit. The printing carriage of the present invention completes all image and text printing after passing through the object to be printed once, the color ink droplets are cured in real time, and the transparent ink droplets are cured after leveling, so as to ensure the transparent effect, shorten the printing time, and improve the work efficiency.

The application discloses a mold core conformal cooling water channel structure with a lattice structure, characterized in that the conformal water channel structure comprises a double-helix water channel structure and a lattice structure. The double-helix structure is used for cooling the side wall of the mold core, and a runway-shaped cross section is adopted; the top of the mold core adopts the lattice structure, and a cylindrical hole is arranged in the center of the mold core. Cooling water enters from two water inlets of the double-helix water channel, and flows out from the cylindrical hole after passing through the lattice structure. The lattice structure is formed by a unit cell array with a large porosity; the interfaces between the double-helix water channel and the lattice region are water inlets, and the included angle between the water flow emission angle and the horizontal angle is 30°. In order to facilitate powder cleaning and cooling water outflow, an inclined surface is arranged below the lattice region, the included angle between the inclined surface and the horizontal plane is 20°-30°, and the cylindrical hole simultaneously serves as a powder cleaning channel and a cooling water outlet.

The utility model discloses 3D printing equipment utilizing line laser or surface laser for scanning. The 3D printing equipment comprises a sealing cavity, a laser emission head, a light path adjusting box, a forming electric cylinder, a powder supply electric cylinder and a powder laying scraping strip. A powder supply cavity and a forming cavity are formed in the sealing cavity; the laser emission head emits line laser or surface laser; a light inlet of the light path adjusting box is connected with the transmitting end of the laser transmitting head, and a light outlet of the light path adjusting box extends into the sealing cavity and corresponds to the forming cavity. The forming electric cylinder is located below the exterior of the forming cavity, and a forming piston plate is arranged at the moving end of the forming electric cylinder and arranged in the forming cavity. The powder supply electric cylinder is located below the exterior of the powder supply cavity, and a powder supply piston plate is arranged at the movable end of the powder supply electric cylinder and arranged in the powder supply cavity. And the powder spreading scraping strip is arranged at the tops of the powder supply cavity and the forming cavity. According to the 3D printing equipment, the printing time can be shortened, and the printing efficiency is improved.

The invention relates to a low-angle forming method and device applied to laser powder bed melting and a medium, and belongs to the technical field of additive manufacturing. The forming method comprises the following steps that S1, partition parameter identification logic is established, the parameter area of each layer is identified, and the contour range is preferentially identified; s2, identifying a filling range according to the identified contour range; and S3, establishing underlying logic of a software printing scanning path, performing staged scanning sorting on a scanning track, performing scanning path filling, and performing sorting scanning filling on non-scanned areas. According to the low-angle forming method applied to melting of the laser powder bed, the design limitation of 45-degree forming is broken through, and the effect that forming can be achieved without adding any auxiliary support due to low-angle inclination is achieved.

The present invention discloses a micro-printer scanning and printing method, wherein a printing control module receives a printing request sent by a host computer and starts a printing program; a scanning module starts scanning and transmits the scanned target graphic code to the printing control module; the printing control module transmits the received target graphic code data to the host computer; after the host computer receives the target graphic code data, a background database is applied to retrieve and output the printing data based on the corresponding relationship between the target graphic code data and the printing data; or the host computer corresponds the identification data in the printing request information data to the target graphic code data, and outputs the non-identification data as the printing data; the host computer sends the printing data to the printing control module; the printing control module controls the print head to complete printing in the non-identification area according to the received printing data. The micro-printer scanning and printing method disclosed by the present invention reduces the amount of printing data of the micro-printer, can shorten the printing time, and thus improves the printing efficiency.

The invention provides a double-color mixed data instruction setting and double-color thermal printing method. The double-color mixed data instruction setting and double-color thermal printing method comprises the steps that an instruction header is selected according to the format of a double-color mixed data instruction; selecting a bitmap mode of the thermal printer, wherein the bitmap mode comprises a plurality of different multiple height and multiple width modes based on a normal size; setting the number of bytes of the bitmap in the horizontal direction, wherein the number of bytes is set as an even number according to a required heating point; setting the number of bitmap points in the vertical direction; bitmap data are set, the bitmap data comprise heating point attributes and color attribute setting, two bits represent one heating point attribute, each heating point attribute comprises one heating point and the corresponding color attribute, and the heating point and the corresponding color attribute of the heating point are adjacently set in one byte. According to the method, the attribute of one heating point is represented by two bits, and the color attribute of the corresponding heating point is added, so that the printing color is accurately switched to the heating point, and the effect of a double-color mixed printing function is realized.

This invention relates to a support structure for additive manufacturing of elliptical thin-walled compartment sections, belonging to the field of additive manufacturing technology for thin-walled compartment sections. Addressing the challenges of shape control in additive manufacturing and post-processing of elliptical thin-walled compartment sections, this invention proposes a multi-layered support structure design. This support structure employs a combination of a cylindrical internal support structure, ribs, and thin-plate supports, providing layered internal support and shaping for the elliptical thin-walled compartment section. This transforms the unstable elliptical cross-sectional structure into a stable approximately circular, triangular, or rhomboid cross-sectional structure, ensuring the support structure's stability and enabling effective control of deformation during additive manufacturing and post-processing of the elliptical thin-walled compartment, thereby improving the overall efficiency of additive manufacturing.

This invention discloses a method for generating multi-axis unsupported printing trajectories based on curve discretization, including steps such as: importing an initial support model, segmenting the support model, editing the bottom and top, rotating and slicing the intermediate rotating layer, merging path points, and generating a complete GCode file. Combined with a multi-axis 3D printer, it can achieve unsupported printing of models with overhanging structures, reduce support printing time, save material consumption and post-processing steps, and improve surface quality.

The invention relates to a bio-ink delivery device and a 3D bio-printer, and belongs to the technical field of 3D bio-printing.The bio-ink delivery device comprises pushing rods, a butt joint piece, a needle cylinder assembly and a spray head assembly, the needle cylinder assembly is divided into a plurality of pushing cavities through partition plates, and the pushing rods are arranged in the pushing cavities respectively; the spray head assembly is connected to the front end of the needle cylinder assembly in a matched mode, the spray head assembly is divided into a plurality of extrusion channels through the partition plates, and the partition plates are in sealed butt joint with the partition plates through the butt joint pieces so that the pushing cavities can communicate with the extrusion channels in a one-to-one correspondence mode. Different bio-inks can be extruded out at the same time in the one-time path process to complete printing, the effect that multi-layer cell structure printing can be integrally carried out through one-time path planning of a single spray head assembly is achieved, path planning is simplified, bio-ink replacement is omitted, the time needed by 3D bio-printing is shortened, and the printing efficiency is improved. And the survival of cells after biological printing is facilitated.

The present invention relates to a spinal stabilizer, in particular to a 3D printed artificial vertebral body fixation device. The device comprises an extendable part and a 3D printed part located at both ends of the extendable part, wherein the extendable part comprises an outer sleeve and support platforms respectively located at both ends of the outer sleeve, wherein the 3D printed part is located at the outer side of the support platform and is fixedly connected to the support platform; the barrel wall of the outer sleeve comprises an outer sleeve wall and an inner sleeve wall, wherein the outer sleeve wall is polygonal, wherein the inner sleeve wall is provided with threads, wherein a plurality of long strip holes are evenly spaced on the barrel wall of the outer sleeve, and wherein the long strip holes are symmetrically arranged relative to the axis of the outer sleeve. The device adopts a modular assembly of 3D printed parts and non-3D printed parts, and develops a simple and mechanically stable extendable method, wherein both the 3D printed part and the non-3D printed part have different models, and different models can be modularly assembled, which is beneficial to saving printing materials, shortening printing time, increasing intraoperative flexibility, reducing the gap between the artificial vertebral body and the bone interface, promoting fusion, and facilitating long-term stability.

According to the 3D printing device and method capable of conducting rapid switching through the multiple materials, by designing the mode that the positions of the spray heads are fixed, the spray heads are switched in a rotating disc mode, and then the printing position of the base is adjusted, the materials needed for printing can be rapidly switched, meanwhile, different types of materials can be adopted for combined printing, and the printing efficiency is improved. Such as a magnetized metal material and magnetized mortar, the bonding strength of the two materials can be further enhanced, and underwater printing construction can be carried out. The problems that different substance boundary models cannot be conveniently and rapidly manufactured through current 3D printing, so that the manufactured models contain single substances, or the manufacturing process is tedious and complex are effectively solved, and wide engineering practical significance and application prospects are achieved.

The invention discloses a deviation rectifying and guiding device and method of a bag-making printing machine, and relates to the technical field of printing. The deviation rectifying and guiding device of the bag-making printing machine comprises a printing workbench, workbench supporting legs are fixedly connected to the bottom of the printing workbench, and a conveying belt support is fixedly installed at the top of the printing workbench; a printing machine is arranged in the conveying belt support, a fixed supporting block is fixedly installed on one side of the printing workbench, a lifting sliding way is formed in one side of the fixed supporting block, and when two correction guide plates reset, two straight plates on the correction guide plates can extrude a packaging bag; the paper packaging bag is extruded to be in a horizontal shape, the packaging bag can be corrected conveniently, the phenomenon that the packaging bag inclines, printing deviation is caused, the printing attractiveness is guaranteed, meanwhile, the packaging bag can be guided conveniently, and then printing machining on the packaging bag is facilitated.

The utility model discloses a label printer applies in printer field, including frame body, be provided with printing platform on the frame body, be provided with the cover on the printing platform, the one end of printing platform is provided with unwinding assembly, the other end of printing platform is provided with winding assembly, be provided with guide rail sliding block on the frame body, be provided with trolley assembly on the guide rail sliding block, the one end of frame body is close to winding assembly and is provided with drive motor assembly, the one end of printing platform is provided with drying assembly, through setting unwinding assembly, two symmetrical first mounting plate fixed on the frame body support first rotating lever, when the first rotating lever rotates, the even setting of several label rolls on it synchronous rotation carries out the conveyance to label, and unwinding assembly can store multiple sets of label rolls, print to multiple sets of labels simultaneously, improve printing efficiency.

The present application discloses a display panel. The display panel includes a substrate and a plurality of pixel groups. The plurality of pixel groups are arranged on the substrate. The pixel groups include a first pixel group, a second pixel group and a third pixel group. Along the second direction, a plurality of first pixel groups and a plurality of second pixel groups are alternately arranged to form a first pixel row, and a plurality of third pixel groups are arranged to form a second pixel row. Along the first direction, at least one second pixel row is provided between each two adjacent first pixel rows. Among them, the first pixel group includes at least two first sub-pixels arranged along the second direction, the second pixel group includes at least two second sub-pixels arranged along the second direction, and the third pixel group includes at least one third sub-pixel arranged along the second direction. The present application can improve the yield rate and pixel resolution of the display panel while maintaining the accuracy of the inkjet printing device.

The invention discloses a selective laser melting grafting printing method for a large-size metal thin-wall frame structure, and belongs to the technical field of laser printing. The selective laser melting grafting printing method comprises the following steps that S1, an auxiliary substrate used for bearing selective laser melting printing is designed; s2, the modified three-dimensional model is input into the selective laser melting equipment and printed; s3, the original substrate and the auxiliary substrate are separated, stress relief heat treatment is conducted on the integrated structure, and the part, except for the bottom face, of the auxiliary substrate in the integrated structure is machined to form the bottom face of the large-size metal thin-wall frame structure; and S4, machining is adopted for carrying out cutting treatment on the supporting structure on the remaining part of the machined integrated structure so as to form the large-size metal thin-wall frame structure, by optimizing the clamping mode and the printing direction, the printing height is reduced as much as possible, and the residual stress and the printing time in the product forming process are reduced.