Scanning method for photo-cured formation metal, alloy and ceramic component

A technology of ceramic parts and scanning method, applied in the field of scanning alloys and ceramic parts, light-cured forming metal, can solve the problems of burning slurry and high absorption rate, and achieve the effect of reducing risks and reducing the difficulty of support removal

Active Publication Date: 2019-04-26
XIAN BRIGHT ADDTIVE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a scanning method for light-cured formed metal, alloy and ceramic parts, which solves the problem of light energy absorbed by the solid-phase powder due to the high absorption rate of the solid-phase powder in the prior art. The problem of burning slurry due to heat generation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The forming of embodiment 1 metal tungsten parts

[0034] (1) Preparation of mixed slurry;

[0035] take d 50 = 15um tungsten powder is dried and mixed evenly with suitable photosensitive resin, sintering aid, phase solvent, photosensitizer and other additives that have also been dried under the condition of avoiding light, and then kept in the dark and vacuum bar for 12 hours for use .

[0036] (2) Light curing forming;

[0037] Put the slurry prepared in the first step into the light curing equipment, and use the prepared slurry to form the part body. The scanning strategy used for forming is: a. Use the sub-area scanning scheme that first scans the frame and then scans the inner filling; b. .Scan the same area 3 times with an energy density that causes the solidification depth to be 2 / 3 of the required solidification depth for the corresponding layer thickness; c. Support the formed part with 3 / 4 of the energy density of the formed part; d. Required layer thicknes...

Embodiment 2

[0043] The forming of embodiment 2 nickel base superalloy parts

[0044] (1) Preparation of mixed slurry;

[0045] take d 50 =5um tungsten powder is dried and mixed evenly with suitable photosensitive resin, sintering aid, phase solvent, diluent and other additives that have also been dried in the dark, and then kept in the dark and vacuum for 20 hours for use .

[0046] (2) Light curing forming;

[0047] Put the slurry prepared in the first step into the photocuring equipment, and use the prepared slurry to form the blank of the part. The scanning strategy used for forming is: a. Use the sub-area scanning scheme that scans the border first and then scans the inner filling; b. Use the energy density that causes the curing depth to be 3 / 4 of the required curing depth for the corresponding layer thickness to perform 2 times on the same area Scanning; c. The formed part is supported by 4 / 5 of the energy density of the formed part; d. The required curing depth value of the layer...

Embodiment 3

[0053] Embodiment 3 Forming of zirconia ceramic parts

[0054] (1) Preparation of mixed slurry;

[0055] take d 50 = 3um yttria-stabilized ZrO 2 After drying, the powder is mixed evenly with the suitable photosensitive resin, dispersant, phase solvent and other additives that have also been dried under the condition of avoiding light, and then keep it in the dark for 10 hours in a vacuum bar for use.

[0056] (2) Light curing forming;

[0057] Put the slurry prepared in the first step into the photocuring equipment, and use the prepared slurry to form the blank of the part. The scanning strategy used for forming is: a. Use the sub-area scanning scheme that scans the border first and then scans the inner filling; b. Scan the same area twice with the energy density that causes the curing depth to be the same as the required curing depth for the corresponding layer thickness; c. The formed part is supported by 2 / 3 of the energy density of the formed part; d. The required curi...

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PUM

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Abstract

The invention discloses a scanning method for photo-cured formation metal, alloy and a ceramic component. The scanning method specifically comprises the following steps of: preparing mixed slurry andputting the prepared mixed slurry into photo-curing equipment to form a component blank; subsequently carrying out after treatment on the formed component blank, wherein the scanning strategy used forforming the component blank by the photo-curing equipment comprises the following steps of: carrying out regional scanning on to-be-formed regions, firstly scanning the frame of each region to make sure that the slurry at each edge is preferentially cured, and afterwards carrying out scanning and filling; in a scanning process, repeatedly carrying out scanning for a plurality of times on the sameregion by virtue of an energy density of curing depth required under a condition that the curing depth is not larger than the corresponding layer thickness; and forming a component support part by using an energy density lower than the energy density of a forming component. The scanning method for the photo-cured formation metal, the alloy and the ceramic component, disclosed by the invention, solves the problem that in the prior art, the slurry is burned by heat generated when solid-phase powder absorbs light energy because the solid-phase powder is high in absorptivity to ultraviolet light.

Description

technical field [0001] The invention belongs to the technical field of scanning methods for additive manufacturing, and relates to a scanning method for light-cured formed metal, alloy and ceramic parts. Background technique [0002] The principle of light-curing additive manufacturing of metal, alloy and ceramic material parts is as follows: firstly, the solid-phase powder of metal, alloy and ceramic materials with suitable particle size and the corresponding liquid photosensitive resin are mixed with a small amount of additives to prepare components. Uniform, moderately viscous photocurable slurry; then use controlled ultraviolet light in the forming equipment to trigger the crosslinking reaction of the photosensitive resin, so that the photosensitive resin wraps the powder evenly distributed around it when the "liquid-solid" transition occurs, realizing solidification The shape setting of the phase powder relies on the solid phase powder to be shaped layer by layer to obt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/22B22F3/10B28B11/24B28B17/02C04B35/622C04B35/64C04B35/48
CPCC04B35/48C04B35/622C04B35/64B22F3/1007B22F3/22B28B11/243B28B17/026C04B2235/6567C04B2235/6562B22F1/10
Inventor 徐天文赵晓明
Owner XIAN BRIGHT ADDTIVE TECH CO LTD
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