20 results about "Manufactured form" patented technology

The invention provides an electric arc additive and subtractive composite manufacturing method and device for a cross structure based on low surface roughness. The device comprises an electric arc additive manufacturing forming system, a milling and subtractive system and a three-dimensional scanning detection system. Firstly, cross structure characteristics are analyzed, an additive manufacturing program is generated through an electric arc additive manufacturing forming system, and a layer is added; secondly, the flatness S, the average height # imgabs0 #, the weld reinforcement h and the height D of each position of the formed surface are analyzed through a three-dimensional scanning detection system, and whether the flatness S exceeds a specified value or not is judged; and finally, material increasing and decreasing judgment is conducted, and if # imgabs1 # imgabs2 #, material decreasing is conducted through a milling and cutting material decreasing system. And if # imgabs3 #, additive repair welding is conducted through an electric arc additive manufacturing forming system. In combination with a three-dimensional scanning detection system, flatness feedback of the formed surface can be obtained in real time, material increasing and decreasing are conducted in time in the cross structure forming process, the roughness of the formed surface of the cross structure is effectively reduced, and the forming precision is improved.

The invention discloses a continuous fiber structural part comprising an embedded connecting piece and a manufacturing method of the continuous fiber structural part, and belongs to the technical field of additive manufacturing. A plurality of embedded parts and locking bolts are arranged in the fiber structural part; through holes are formed in the embedded parts, the outer end faces of the through holes are flush with one end of the fiber structural part, the locking bolts are inserted into the through holes from the inner end faces of the through holes, and one locking bolt is in threaded connection with one embedded part; according to the structure, the connecting piece for additive manufacturing is pre-buried in the continuous fiber additive manufacturing forming printing process, meanwhile, the reverse locking bolt is installed to conduct fiber coating on the connecting piece, the mechanical property of connection between the pre-buried connecting piece and a component is improved, and meanwhile, the mechanical connection mode of a traditional composite material structural piece is replaced.

A formed article obtained by performing laser welding on a transmitting resin member and an absorbing resin member, includes: a bonded part where the transmitting resin member and the absorbing resin member are bonded to each other by the laser welding, in which a molten pool is observed at the bonded part in a cross section that includes a normal to the transmitting resin member or the absorbing resin member and is orthogonal to a scanning direction of a laser beam, an area of the molten pool is 0.210 mm2 or more and 1.00 mm2 or less, the transmitting resin member and the absorbing resin member are each molded from a resin composition, the resin composition contains a thermoplastic resin, the thermoplastic resin contains at least a polyamide-based resin (A1), and a glass transition point temperature of the resin composition is 85° C. or higher.

The forming head comprises a material bearing assembly, the material bearing assembly comprises a feeding cavity, a friction cavity and a discharging cavity which are sequentially arranged, the feeding cavity can be communicated with additive materials, a material conveying assembly is arranged in the material bearing assembly, the material conveying assembly comprises a friction section, a friction external thread is arranged on the friction section, and the friction external thread is connected with the friction section. A friction space exists between the friction section and the friction cavity, the friction space is gradually narrowed in the direction close to the discharging cavity, the material conveying assembly is driven by the driving assembly to rotate relative to the material bearing assembly, and the additive materials entering the material bearing assembly from the feeding cavity move towards the discharging cavity along the friction external threads; through relative rotation between the friction external thread and the friction cavity, the material has the trend of moving towards the narrow part of the friction space, the friction cavity and the friction section can fully extrude and rub the additive material, the physical characteristics of the additive material are improved, and the additive manufacturing forming effect is improved.

A method for manufacturing a formed product includes: (i) bending a plate-shaped workpiece, which extends in a length direction of the formed product and has at least one through part formed therethrough, by roll forming to form at least one ridge part on the workpiece such that the at least one ridge part overlaps the at least one through part; (ii) cutting the workpiece, which has the at least one ridge part formed thereon, along a cutting plane intersecting the length direction through the at least one through part, thereby obtaining an intermediate formed product having a main body part and at least one end piece part facing the at least one through part from a direction perpendicular to the length direction; and (iii) bending the at least one end piece part to form at least one flange part on the intermediate formed product, thereby obtaining the formed product.

The utility model relates to a distributed heating system of an additive manufacturing forming cylinder piston, which comprises a sealing plate, a heat insulation plate, a heating plate frame, heating blocks and a base plate, the sealing plate, the heat insulation plate and the heating plate frame are sequentially connected from bottom to top, the heating plate frame is of a multi-partition structure, one heating block is placed in each partition, and the base plate is arranged on the base plate. Each heating block is positioned between the heat insulation plate and the base plate, the lower portion of each heating block is in positioning connection with the heat insulation plate through a heat-resistant compression spring, and the upper surface of each heating block is slightly higher than the upper surface of the heating plate frame, so that when the base plate is assembled above the heating plate frame, the upper surface of each heating block is attached to the lower surface of the base plate. According to the utility model, the heating plate can be well attached to the substrate, so that the heat conduction of the substrate is stable, and the precision of the relative position between the heating block and the substrate is also improved; the primary layer quality of the printed piece on the substrate is guaranteed, local deformation is prevented, the precision of the forming height is guaranteed, and a good foundation is laid for the forming size of the printed piece.

This utility model discloses a novel terrazzo manufacturing and forming device, relating to the field of terrazzo manufacturing technology. It includes a connecting base plate, with a support column fixedly installed on the upper end of the outer wall of the connecting base plate. A connecting frame is fixedly installed on the upper end of the outer wall of the support column. This utility model uses a hydraulic telescopic rod to drive an extrusion plate downwards. The extrusion plate passes through an opening in the covering film and enters the forming frame, extruding and forming the material in the forming frame. After the terrazzo slab in the forming frame is initially formed, the device starts a motor that drives two pulleys and a transmission belt to rotate, causing two rotating shafts and rotating rollers to rotate simultaneously. This causes the covering film to rotate, automatically covering and sealing the upper end of the outer wall of the forming frame, creating a closed environment inside the forming frame, slowing down the rate of moisture evaporation, and allowing the formed terrazzo slab to continue hydrating during the covering period, thus increasing its strength.

The invention discloses a multi-material metal additive manufacturing forming device which comprises a forming table, a forming laser source, an integration platform, a transfer module and a powder laying module, and the powder laying module is installed on the integration platform and can continuously or discontinuously form a single-layer powder pattern; the transfer module is installed between the powder laying module and the forming table to move in a reciprocating mode and ascend and descend, the single-layer powder pattern laid by the powder laying module is adsorbed, the integrated single-layer multi-material powder pattern is released at the corresponding position of the forming table at a time, and the forming laser source selectively melts the released powder by emitting laser; laying of various material powder between single-layer printing heights can be achieved, and larger design freedom and material diversity are provided.

The invention discloses a composite material for fused deposition modeling (FDM) additive manufacturing of a computed tomography (CT) equivalent body model and a preparation method of the composite material, and belongs to the technical field of additive manufacturing. The composite material comprises polylactic acid powder and tin-based alloy powder, the tin-based alloy powder is subjected to surface modification treatment by a coupling agent before being used; relative to the total mass of the polylactic acid powder and the tin-based alloy powder, the mass percentage of the tin-based alloy powder is 2-10%. According to the method, a common FDM PLA material is selected, tin-based alloy powder with the melting point temperature close to that of PLA is selected, simultaneous melting of PLA and doped metal in the wire preparation and additive manufacturing process is achieved, meanwhile, metal powder surface modification and double-screw extrusion are combined, the mixing uniformity of the composite material is improved, the mixing uniformity of the composite material and the FDM additive manufacturing forming performance are improved, and the material preparation cost is reduced. The CT value of the composite material is obviously improved, and the application requirements of high-CT-value phantom equivalent materials such as teeth and bones are met.

The present application relates to a kind of green frozen sand mold additive manufacturing forming system equipment and method, including heat-insulated sealed printer shell;Detachable multifunctional printing platform;With temperature adjustment function's ink supply system;With heat insulation function's printing assembly;Adjustable sanding volume's sanding device;Adjustable interlayer refrigerator;Multi-material precooling sand mixing device;External control cooling and humidity refrigerating unit.The device of the present application is based on the principle of additive manufacturing, according to the designed three-dimensional digital model of casting, adopts interlayer cooling method to rapidly cool down and freeze the sprayed water-based ink, forms layer by layer, can quickly produce multi-material, green pollution-free, high-quality complex sand mold (core), meet the casting needs in many aspects, improve the performance and precision of casting, realize the high efficiency, high performance and green casting of complex casting.

The application discloses a concrete building block manufacturing and forming machine, and relates to the technical field of block manufacturing, which comprises a curing assembly, a conveying assembly and two block forming assemblies, the two block forming assemblies are symmetrically arranged on the left and right sides of the curing assembly, the block forming assembly is used for the extrusion forming of building blocks, the curing assembly is used for the steam curing of the formed blocks, and the conveying assembly is used for the conveying and transferring of the cured blocks. The mechanical arm takes out the carrier plates from the curing assembly one by one and sends them to the block forming assembly, the block forming assembly extrudes the mixture on the carrier plates into building blocks, and then the mechanical arm sends the building blocks back to the curing assembly, so that the transfer steps are reduced, the two curing assemblies are alternately used, the manufacturing and curing of the building blocks can be realized without stopping, the probability that the building blocks are damaged due to the transfer is reduced, and the manufacturing efficiency and the yield of the building blocks are improved.

The present application relates to a kind of methods for improving the strength and toughness of laser additive manufacturing ferrite / martensite steel, belong to laser additive manufacturing technical field.The present application provides a kind of methods for improving the strength and toughness of laser additive manufacturing ferrite / martensite steel, ferrite / martensite steel powder is dried, printing preparation is made;Three-dimensional modeling model of printing component is sliced according to preset thickness, slice file is analyzed and each layer information is extracted, all slice layers are converted into corresponding model file, laser process parameter is attached to each layer model file;The additional laser process parameter is alternately carried out according to A laser process parameter and B laser process parameter;Laser scanning strategy adopts strip filling mode;Layer by layer printing, and printing component is prepared.The present application constructs heteromorphous organization by regulating and controlling interlayer laser process parameter, cooperatively improves the strength and toughness comprehensive performance of ferrite / martensite steel, further guarantees the service safety of laser additive manufacturing forming fusion reactor component.

The invention relates to the technical field of material science, in particular to a metal additive manufacturing forming material mechanical property prediction method and system. The method comprises the following steps: constructing a material representative volume element model, and obtaining a first offline database through a finite cell method based on the material representative volume element model; clustering and reducing tensors in the grid point deformation gradient set in the first off-line database, and obtaining a second off-line database according to a clustering result; building a forming material variable increment model in combination with the far-field deformation gradient, and solving the forming material variable increment model based on the second offline database; and according to a forming material variable increment model solving result, a macroscopic equivalent stress strain relation is obtained, and then mechanical property prediction of the metal additive manufacturing forming material is completed. According to the method, the deformation gradient field database is constructed, the macroscopic equivalent stress-strain relation is established, and the problem of efficient and accurate prediction of the mechanical property of the metal additive manufacturing forming material is solved.

The invention relates to a method for predicting the mechanical property of a metal additive manufacturing forming component, and belongs to the technical field of material science. Macroscopically, a finite cell method is adopted to directly carry out regularized grid discretization on computed tomography data, and a complex pretreatment process is avoided; the self-consistent clustering analysis is adopted for solving in the microcosmic process, so that the microcosmic calculation efficiency is greatly improved; and the two scales are coupled in real time for data transmission. A concurrent two-scale solving strategy is adopted to replace an existing single-scale technology, and the influence of a low scale (micro scale) on a macro scale can be naturally considered; a macroscopic finite cell method is adopted to replace a macroscopic finite element method adopted by an existing concurrent multi-scale technology, and a complex pretreatment process is avoided. Microscopic self-consistent clustering analysis is adopted to replace a microscopic crystal plasticity finite element method adopted by an existing concurrent multi-scale technology, model order reduction is carried out on a microscopic representative volume unit, and the calculation efficiency is greatly improved.

A mine bearing element for holding a mesh sheet in place against a rock formation is disclosed. The mine bearing element includes a body having (a) a rock bolt engagement portion, (b) a mesh engagement portion, and (c) a transition that connects together the mesh engagement portion and the rock bolt engagement portion in an as-manufactured form of the bearing element. The transition includes a stiffening rib.

1. Name of the Design Product: Tape Forming Machine (Auto - adjusting Type). 2. Use of the Design Product: For manufacturing formed electronic tapes. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

To reduce such a possibility that the postures of a first formation device and a second formation device cannot be maintained.SOLUTION: A manufacturing system of a molding comprises: a first formation device which forms a bead obtained by melting and solidifying a filler material; a second formation device which forms a bead obtained by melting and solidifying a filler material; an adjustment device which adjusts the position or posture of a base material; and a control device which controls the first formation device, the second formation device, and the adjustment device so as to manufacture a molding by forming the bead on the base material. The control device decides a first control change amount of the first formation device, a second control change amount of the second formation device, and a third control change amount of the adjustment device such that both of the first control change amount and the second control change amount become smaller than the greater one of a first correction amount and a second correction amount, on the basis of the first correction amount of a formation condition of the first formation device and the second correction amount of a formation condition of the second formation device.SELECTED DRAWING: Figure 1

The application relates to the technical field of forming die equipment, and discloses a high-voltage cable accessory insulating part manufacturing forming die which comprises a mounting frame, a linear movement module capable of linear reciprocating movement is arranged in the mounting frame, a supporting seat for supporting the forming die when the die is closed is arranged on one side of the bottom of the mounting frame; a die closing forming mechanism is arranged above the supporting seat and is used for die closing processing when stress cones are subjected to injection molding processing; a flow control and densification mechanism is arranged on the upper portion of the mounting frame and is used for controlling and adjusting the raw material input and the internal pressure of the die according to different positions and processing stages of the stress cones. When the stress cones are subjected to die injection molding processing, the flow control and densification mechanism can not only realize the differential conveying and filling of the injection molding raw material according to the wall thickness gradient characteristics of the stress cones, but also can avoid defects such as air wrapping of the material flow, material shortage at the tip, root shrinkage and the like through the hierarchical gate and dynamic pressure and speed adjustment.

The application discloses a concrete building block manufacturing and forming machine, and relates to the technical field of block manufacturing, which comprises a block forming assembly, a conveying assembly and two curing assemblies, the two curing assemblies are symmetrically arranged on the two sides of the block forming assembly, the block forming assembly is used for extrusion forming of building blocks, the curing assemblies are used for steam curing of the formed blocks, and the conveying assembly is used for conveying and transferring the cured blocks. The mechanical arm takes out the carrier plates from the curing assemblies one by one and sends them to the block forming assembly, the block forming assembly extrudes the mixture on the carrier plates into building blocks, and then the mechanical arm sends the building blocks back to the curing assemblies, so that the transfer steps are reduced, the two curing assemblies are alternately used, the building block manufacturing and curing can be realized without stopping, the probability of damage of the building blocks due to transfer is reduced, and the block manufacturing efficiency and the yield are improved.

A method of manufacturing a formed product is provided. The method includes: joining a first member and a second member to each other by welding top plate corresponding portions to each other in a state where the first member is placed on the second member to include an extending portion; curving vertical wall corresponding portions and the extending portion of the plate members toward a moving direction by making a metal press mold contact the extending portion; and forming top plate portion and vertical wall portion by pressing the vertical wall corresponding portions of the plate members by the metal press mold.