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Method for real-time simultaneous additive and subtractive manufacturing with a dynamically grown build wall

A technology of guiding mechanism and conveying mechanism, which is applied in the direction of processing and manufacturing, manufacturing tools, additive manufacturing, etc., and can solve the problems of reducing scanning quality, size limitation, increasing powder bed size, etc.

Inactive Publication Date: 2018-12-11
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the need to build in a powder bed, the size of the object to be built is limited by the size of the machine's powder bed
Increasing the size of the powder bed has limitations as the required large angle of incidence may degrade scan quality and the weight of the powder bed may exceed the capability of the stepper used to lower the build platform

Method used

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  • Method for real-time simultaneous additive and subtractive manufacturing with a dynamically grown build wall
  • Method for real-time simultaneous additive and subtractive manufacturing with a dynamically grown build wall
  • Method for real-time simultaneous additive and subtractive manufacturing with a dynamically grown build wall

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Embodiment Construction

[0051] The detailed description set forth below in connection with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details that provide a thorough understanding of various concepts. It will be apparent, however, to one skilled in the art that these concepts may be practiced without these specific details. For example, the present invention provides preferred methods for the manufacture of certain parts of metal objects, and preferably these parts and these objects are used in the manufacture of jet aircraft engines. In particular, large annular components of jet aircraft engines can be advantageously produced according to the invention. However, other parts of the aircraft may be prepared using the apparatus and methods described herein.

[0052] The present invention provides an apparatu...

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Abstract

A method for large-scale, real-time simultaneous additive and subtractive manufacturing is described. The apparatus used in the method includes one or more build units and a machining mechanism that are attached to a positioning mechanism, and a rotating build platform. The method involves at least rotating the build platform; repetitive cycles of moving the build unit(s) to deposit powder and irradiating at least a selected portion of the powder to form at least one fused layer to form at least one object and a build wall that retains unfused powder about the object; and removing the build wall by rotational machining.

Description

technical field [0001] The present disclosure generally relates to apparatus and methods for additive and subtractive manufacturing. More specifically, the present disclosure relates to apparatus and methods enabling real-time simultaneous additive and subtractive manufacturing of large formats. These apparatus and methods may be used, but are not limited to, to manufacture aircraft engine components. Background technique [0002] Additive manufacturing (AM) includes various techniques for producing components in additive layered fashion. In powder bed fusion, one of the most popular AM techniques, a focused energy beam is used to fuse powder particles together layer by layer. The energy beam can be an electron beam or a laser. The laser powder bed fusion process is known in the industry by many different names, the most common of which are selective laser sintering (SLS) and selective laser melting (SLM), depending on the nature of the powder fusion process. When the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F3/24B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B22F3/24B22F2003/247B22F10/00B22F12/70B22F10/28B22F12/22B22F12/37B22F10/47B22F10/50B22F10/31B22F10/73B29C64/153G05B19/4099B29C64/188B29C64/241B22F5/10Y02P80/30Y02P10/25G05B19/188B29C64/40
Inventor B.霍尔福德J.沃特M.R.雷丁J.马姆拉克
Owner GENERAL ELECTRIC CO