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Equipment system and method for improving quality of powder bed in additive manufacturing process

A technology of additive manufacturing and equipment, which is applied in the field of processing workpieces with complex structures formed by equipment, and can solve problems such as deviation from expected size requirements, deformation, and failure to achieve expected molding quality effects.

Pending Publication Date: 2021-10-01
云耀深维(江苏)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When contact pressure is used, the expected molding quality effect is not achieved for fine particle powder, and the stability is not sufficient. The workpiece is deformed, deviates from the expected size requirements, and even directly leads to damage to the formed workpiece

Method used

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  • Equipment system and method for improving quality of powder bed in additive manufacturing process
  • Equipment system and method for improving quality of powder bed in additive manufacturing process
  • Equipment system and method for improving quality of powder bed in additive manufacturing process

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Embodiment Construction

[0047] Refer below Figures 1 to 7 Exemplary embodiments of the invention are described in detail, without prejudgment, and especially without limitation. Unless otherwise stated, identical elements are provided with identical reference numerals.

[0048] figure 1 a) shows the system 10 according to the invention during the spreading of the powder 30 by means of the spreading device 20 . The system 10 according to the invention is suitable for the additive production of complex structural workpieces 11 and comprises a spatially displaceable powder spreading device 20 for powder 30 which also comprises an excitation unit 40 .

[0049] The powder spreading device 20 is used to convey one or more powder layers 31 on the processing plane 15 to the substrate platform 16 or to a previously processed powder bed 32 .

[0050] The excitation unit 40 is configured to break up the clusters and / or adhesions of the powder particles 33 with each other and / or with the powder bed 32 that ...

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Abstract

The invention relates to an equipment system and a method for improving the quality of a powder bed in an additive manufacturing process. The equipment system (10) comprises a spatially displaceable powder (30) spreading device (20) and an excitation unit (40), the spreading device (20) being arranged to apply one or more powder layers (31) on a processing plane (15) onto a substrate platform (16) or a powder bed (32) that has been processed with the equipment system. The excitation unit (40) is arranged to break away clusters and / or adhesions between particles of the individual powder (30) and / or between particles of the individual powder (30) and a powder bed (32) which has been treated with the plant system, so that the powder spreading device (20) can apply a smooth powder layer (31) to the substrate platform and / or the previous powder layer / powder bed (31, 32).

Description

technical field [0001] The invention relates to a device using a powder system through additive manufacturing technology, and a processing method for using the device to form complex structural workpieces. Background technique [0002] Additive manufacturing technology, or 3D printing, builds complex multidimensional structures by using powders as raw materials. The powder material is melted by high-energy beam focusing, and solidified again to obtain a specified spatial configuration. Known metal additive manufacturing processes are laser powder bed fusion (LPBF), electron beam melting or selective laser sintering. In the LPBF process, the material to be processed is deposited in a thin layer on the substrate platform by the powder spreading system of the equipment in the form of powder. The powder material is completely melted and solidified locally under laser focused melting, forming a nearly two-dimensional solid configuration. Then the substrate platform is lowered ...

Claims

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Application Information

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IPC IPC(8): B22F12/50B22F12/60B22F10/28B33Y30/00B33Y10/00
CPCB33Y30/00B33Y10/00B22F12/67B22F2999/00B22F12/50B29C64/153B22F10/37B22F1/05B29C64/214B29C64/165B29C64/30B33Y40/00Y02P10/25B22F2202/01
Inventor 沈李耀威
Owner 云耀深维(江苏)科技有限公司
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