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Scan field variation compensation

A technology of scanning area and irradiation source, applied in program control, instrument, processing and manufacturing, etc., can solve problems such as non-equilibrium phase and high thermal stress of solidified materials

Inactive Publication Date: 2020-06-19
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rapid heating and solidification can lead to high thermal stresses and lead to local non-equilibrium phases throughout the solidified material

Method used

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  • Scan field variation compensation
  • Scan field variation compensation
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Embodiment Construction

[0024] Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of illustration of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0025] figure 2An example of one embodiment of a large-scale AM ​​device that may be used with the present invention is shown. The apparatus includes a positioning system (not shown), a build unit 400 including an illumination emission guide 40...

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Abstract

A method, apparatus, and program for additive manufacturing. In one aspect, the additive manufacturing method includes irradiating a build material (416) to form a first solidified portion within a first scan region (812A) using an irradiation source (401) of a build unit (400). At least one of the build unit and a build platform may be moved to irradiate a second scan region (812B), wherein an irradiation source (401) directing mechanism is adjusted to compensate for a misalignment between the first scan region and the second scan region (640).

Description

[0001] priority information [0002] The applicant claims priority to US Provisional Patent Application Serial No. 62 / 584,477, filed November 10, 2017, entitled "Scan Field Variation Compensation," the disclosure of which is incorporated herein by reference. technical field [0003] The present disclosure relates to an improved method and apparatus for scanning build material for additive manufacturing. Background technique [0004] As examples, additive manufacturing (AM) techniques may include electron beam free-form manufacturing, laser metal deposition (LMD), laser line metal deposition (LMD-w), gas metal arc welding, laser engineered net forming (LENS), laser sintering (SLS), direct metal laser sintering (DMLS), electron beam melting (EBM), powder-fed directed energy deposition (DED) and three-dimensional printing (3DP). In contrast to subtractive manufacturing methods, additive manufacturing processes generally involve the accumulation of one or more materials to make...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105G05B19/4099B33Y10/00B29C64/153
CPCG05B19/4099B33Y10/00B29C64/153Y02P10/25B22F10/28B22F10/366B22F10/85B22F10/25B22F12/90B22F12/67B22F12/37B33Y50/02
Inventor 贾斯汀·曼拉克麦肯齐·赖安·雷丁
Owner GENERAL ELECTRIC CO