34results about How to "Enabling Additive Manufacturing" patented technology

The invention discloses a building method of a metallurgical furnace and a 3D printing robot adopted forbuildingthe metallurgical furnace. Furnace building materials are tamped and printed in a hearth layer by layer by a 3D printing robot according to design requirements and reverse modelling results of a 3D scanner, so that a novel building furnace or the restoration of the hearth is realized. A control system of the 3D printing robot drives the 3D scanner and an execution mechanism to move for performing three-dimensional scanning on the hearth, analyzing and processing scanning data and reversely modelling; then modelling results are compared with hearth design to determine an adding area of a furnace building material, and formulate a printing plan; and in addition, multi-dimension motion robot arms drive a material distributing mechanism and a furnace building tool for building the furnace. According to the 3D printing robot adopted for building the metallurgical furnace, disclosed by the invention, material increase manufacturing can be realized according to the shape of the hearth and design requirements; an existing useable cathode is effectively utilized, the workload of planning the furnace and rebuilding the furnace is reduced, wastes are avoided and the consumption of materials such as the cathode is reduced; and the furnace building efficiency is improved, furnace building workers are reduced, labor efficiency is improved, and physical and psychological health of the workers is protected.

An induction heating fuse wire and laser compound based additive manufacturing device comprises a bottom plate, wherein a transverse circular plate is arranged at the upper part of the bottom plate; acircular ring sleeves the outer circumference of the circular plate and is movably connected to the outer circumference of the circular plate through a bearing; a plurality of uniformly-distributed induction heating devices are arranged at the bottom part of the circular plate; the lower ends of the induction heating devices are pointed to a part where a central axis of the circular plate is connected to the top surface of the bottom plate; vertical rods are fixedly mounted at the upper ends of the induction heating devices, and the side parts of the vertical rods are connected to the side part of the circular ring by hinging. According to the device, an induction heating fuse wire and laser compound based additive manufacturing method is used for performing additive manufacturing; a fusewire is molten by induction heating; a laser beam is capable of promoting the stirring in a metal melting pond; the material feeding capacity per unit of time is high in the manufacturing process, and the formed metal melting pond is large, so that the additive manufacturing efficiency is high; and meanwhile, the fuse wires manufactured through a plurality of materials can be synchronously fed, so that the additive manufacturing of an alloy material is achieved; and a novel device and a novel method are provided to realize additive manufacturing.

The invention discloses an additive manufacturing method for a metal-based in-situ autogeny particle reinforced component. The method includes the steps that metal is molten in a crucible with a nozzle at the bottom, two or more kinds of simple-substance particles are added, in-situ autogeny particles not dissolved in metal are generated through chemical reactions between the particles, and the in-situ autogeny particles are formed; a horizontal base plate capable of moving in a three-dimensional mode is arranged, a control program of the horizontal base plate is set, metal melt containing the in-situ autogeny particles flows out of the nozzle by applying certain pressure, the melt is solidified layer by layer, and stacking forming is conducted. The in-situ autogeny particles are obtained by means of the chemical reactions between the simple-component particles added into the metal melt and between the metal melt and the single-component particles, then the viscosity of the metal melt is controlled according to the sizes and the volumes of the in-situ autogeny particles, the aim of controlling flowing and forming is achieved, the problems that interlayer bonding in the prior art is not good and forming is not easy are solved, and the novel method for preparing the metal-based in-situ autogeny particle reinforced component is disclosed.

The invention belongs to the related technical field of additive manufacturing, and discloses an additive manufacturing equipment and method based on multi-field compounding. The equipment includes a powder conveying adjustment module, a sound field control module, a microwave field / thermal field control module and a microprocessor. The powder conveying adjustment module, the sound field control module and the microwave field / heat field control module are respectively connected to the microprocessor; the powder conveying adjustment module includes a raw material dispersion chamber, and the raw material dispersion chamber is arranged in the forming cavity formed by the casing; the sound field control module is also It is arranged in the forming cavity, and it is located below the raw material dispersion chamber; the microwave field / thermal field control module includes multiple microwave generators set in the forming cavity, and the multiple microwave generators are respectively located on both sides of the forming area, and the microwave The generator and the sound field control module are respectively located on opposite sides of the raw material dispersion chamber; wherein, the forming area is divided into a high temperature area and a low temperature area, and the temperature of the high temperature area is higher than that of the low temperature area. The invention reduces the tendency of cracking, and the forming efficiency and precision can be adjusted.

An additive manufacturing process for metal parts, comprising the following steps: S101: slice a prefabricated three-dimensional model; S102: generate an additive deposition path corresponding to each layer of the three-dimensional model slice; S103: slice each layer corresponding to the three-dimensional model The additive deposition path generates the additive molding path and the laser scanning path; S104: The molding machine drives the material box according to the additive molding path; S105: The material box releases the metal powder according to the additive molding path; S106: The molding surface corrector controls the metal powder Carry out shaping; S107: The material recovery box recycles the rejected metal powder; S108: The forming surface preheater preheats the forming surface formed by the metal powder; S109: If the forming surface is preheated, the laser former is turned on; S110: Laser forming The laser scan path is acquired by the laser shaper, and the laser shaper scans and shapes the metal powder on the preset molding surface along the preset laser scanning path at a preset scanning speed; S111: loop steps S104‑S110 until the parts are piled up and formed layer by layer .

The invention discloses an additive manufacturing method for a metal-based particle reinforced member. The method includes the steps that metal is melted in a crucible with a nozzle at the bottom, and then ceramic particles are added; a horizontal base plate which can make three-dimensional movement is arranged, and a control program of the horizontal base plate is set; and certain pressure is applied to enable metal melt containing the ceramic particles to flow out from the nozzle, the melt is solidified layer by layer, and the layers of melt are stacked to form a product. According to the method, the ceramic particles which do not chemically react with the metal melt are added, the viscosity of the melt is controlled through the size and volume fraction of the ceramic particles, the purpose of controlling flowing and forming is achieved, and the problems that in the prior art, interlayer bonding is poor, and forming is affected are solved; and the additive manufacturing method is a novel method for preparing the metal-based particle reinforced member.

The invention relates to jet angle controllable ultrasonic droplet jetting additive manufacturing device and method, belonging to the field of additive manufacturing. The device is characterized in that a base is installed at the bottom; a jet tank is installed on the base; a focused ultrasonic transducer is installed in the jet tank; a base plate is fixed below wafer bearing platforms and above the jet tank; the wafer bearing platforms are installed on a Z-direction workbench; the Z-direction workbench is installed on the base; the jet tank is communicated with a liquid storage tank; a high-precision injection pump is connected with a feeding head; through focused ultrasound, liquid overcomes the surface tension and jets droplets from the liquid level; the power of four focused ultrasonic vibrators of the focused ultrasonic transducer is controlled by a computer and the focused ultrasonic vibrators interact and then change the jet angles of the droplets to jet the droplets to different positions on the base plate; a Z-axis motion platform cooperates with different jet angles to complete printing of different position points on the base plate. The device and the method have the effects of improving the printing precision and ensuring the physical and chemical properties and other properties of formed parts without needing print heads, thus avoiding pollution and cleaning difficulty of liquid materials.