Steel laser 3D printing active face steel-rubber composite powder scraping cutter

A 3D printing and powder scraping technology, which is used in the improvement of process efficiency, energy efficiency, additive manufacturing, etc., can solve the problems of increased residual stress, residual stress, impurity powder in the powder, etc., to improve the connection stability, Avoid further deterioration, stable and reliable clamping effect

Pending Publication Date: 2020-04-07
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 2. Residual stress
[0015] 3. Crack
[0018] 4. Warping
[0021] 5. Local uplift
[0023] (2) Causes of defects in steel laser 3D printing
[0025] The powder has impurity powder, the fluidity of the powder is not good, and the powder particles are too large
[0026] 2. Laser parameters are unreasonable
The laser scanning control is unreasonable, and the residual stress will increase
[0028] 3. Unreasonable powder scraping m

Method used

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  • Steel laser 3D printing active face steel-rubber composite powder scraping cutter
  • Steel laser 3D printing active face steel-rubber composite powder scraping cutter
  • Steel laser 3D printing active face steel-rubber composite powder scraping cutter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1: as Figure 1-Figure 6 As shown, a steel laser 3D printing blade-surface steel-strip composite powder scraper includes a rubber-strip scraper 1 and a blade-surface steel-strip scraper 2 , and the blade-surface steel strip scraper 2 is fixedly connected to the rear side of the rubber-strip scraper 1 .

[0060] Preferably, the cutting edge of the scraper 2 is lower than the cutting edge of the scraper 1 by 0.01-0.03 mm.

[0061] Preferably, there is a gap between the edge of the scraper 2 and the edge of the scraper 1 .

[0062] Preferably, the rubber strip scraper 1 includes a front scraper 4, a rubber strip 5 and a rear scraper 6, the rear scraper 6 is fixedly connected to the front scraper 4 by a screw 14, and the rear scraper 6 and the front scraper 4 There is an installation inlay groove 7 with a T-shaped cross-section at the bottom, the back of the rubber strip 5 is embedded in the installation inlay groove 7, the front scraper or the rear scraper is pro...

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PUM

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Abstract

The invention discloses a steel laser 3D printing active face steel-rubber composite powder scraping cutter, which comprises an rubber scraper and an active face steel bar scraper, wherein the activeface steel bar scraper is fixedly connected to the rear side of the rubber scraper. The rubber scraper is a main powder scraping cutter to avoid micro bulges on a printing surface in a laser 3D printing process. The active face steel bar scraper is an auxiliary cutter to plane local ultrahigh bulges printed on each layer and avoid the bulges from continuously deteriorating. The rubber can be usedindependently.

Description

technical field [0001] The invention belongs to the technical field of 3D printing doctor blades, and in particular relates to a steel laser 3D printing blade surface steel strip rubber strip composite doctor blade. Background technique [0002] Steel laser 3D printing is powder bed fusion. Using a laser, the powder particles are fused together point by point, and processed layer by layer until the object is complete. Powder bed fusion systems have heat sources and powder distribution control mechanisms. [0003] During the steel laser 3D printing process, a large number of problems that equipment operators try to avoid may arise, including porosity, residual stress, warping, cracks, localized bulging, etc. [0004] (1) Common defects of steel laser 3D printing [0005] 1. Porosity [0006] During the laser 3D printing process of parts, very small holes inside will form porosity, which can be caused by the steel laser 3D printing process itself or powder. These microvoi...

Claims

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Application Information

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IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F12/67B22F10/28Y02P10/25
Inventor 张仁奇
Owner GUIZHOU POWER GRID CO LTD
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