Automatic scraper judging and selecting method for powder bed additive manufacturing

An additive manufacturing and automatic judgment technology, applied in the field of additive manufacturing, can solve problems such as card scrapers, and achieve the effects of reducing deformation, improving powder quality, improving forming quality and batch stability

Active Publication Date: 2019-10-18
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide an automatic judgment and selection method for scrapers used in powder bed additive manufacturing in order to overcome the defect of scraper jamming in the powder bed additive manufacturing process in the prior art

Method used

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  • Automatic scraper judging and selecting method for powder bed additive manufacturing
  • Automatic scraper judging and selecting method for powder bed additive manufacturing
  • Automatic scraper judging and selecting method for powder bed additive manufacturing

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Embodiment Construction

[0035] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0036] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts.

[0037] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the description of the present invention may be selected by the applicant according to his or her judgment, and the detailed meanings thereof are set forth herein described in the relevant section of the description. ...

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Abstract

The invention provides an automatic scraper judging and selecting method for powder bed additive manufacturing. The automatic scraper judging and selecting method for powder bed additive manufacturingcomprises the following steps of S1, calculating and judging information of a cross section to be sintered; S2, carrying out linkage operation through an automatic scraper replacement mechanism; andS3, actually forming a part. The automatic scraper judging and selecting method for powder bed additive manufacturing provided by the invention has the following advantages that (1) a scraper is prevented from getting stuck: the scraper is self-adaptively selected after judging the cross section, and the damage of a weak structure is avoided, so that the scraper is prevented from getting stuck, and the risk of the deformation of the weak structure is reduced; (2) the forming quality and the batch stability of parts are improved: the powder paving quality can be improved, the local deformationof a formed part is reduced, and the forming quality of each layer is improved, so that the forming quality and the batch stability of the parts are improved; and (3) the production efficiency is improved: a user has no need to spend time on handling the problem that the scraper gets stuck, so that the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a scraper automatic judgment and selection method for powder bed additive manufacturing. Background technique [0002] In the field of additive manufacturing technology, additive manufacturing technology is predicted to be one of the key technologies that may trigger the "third industrial revolution". Powder bed additive manufacturing (powder bed fusion) is an additive manufacturing method in which raw materials are laid layer by layer on a forming platform, and a heat source is used to melt or sinter a selected area on the forming platform, including but not limited to laser selective melting, Laser selective sintering, electron beam selective melting, etc. [0003] The main technical principle of powder bed additive manufacturing is: after the three-dimensional digital model of the part to be processed is divided layer by layer, it is input into the additive man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y50/02
CPCB33Y50/02B22F10/00B22F10/36B22F10/28B22F12/67Y02P10/25
Inventor 何艳丽侯慧鹏雷力明
Owner AECC COMML AIRCRAFT ENGINE CO LTD
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