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Local Contamination Detection in Additive Manufacturing

A technology of additive manufacturing and pollution detection, which is applied in the field of additive manufacturing and can solve problems such as contamination of raw materials

Active Publication Date: 2018-06-01
UNITED TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite this, raw materials can still be contaminated, causing defects in the parts being built
However, due to current machine and process limitations, the type and extent of raw material contamination cannot be known until the build process is complete

Method used

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  • Local Contamination Detection in Additive Manufacturing
  • Local Contamination Detection in Additive Manufacturing
  • Local Contamination Detection in Additive Manufacturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] An additive manufacturing system includes a build chamber, powder bed deposition equipment, and a broad-spectrum gas analyzer or sensor that can be tuned according to the type of deposition equipment.

[0012] figure 1 is a schematic diagram of an exemplary additive manufacturing system 10 having a build chamber 12 . Build chamber 12 contains one or more devices capable of producing solid free-form objects through additive manufacturing. Non-limiting examples of such devices include the following: fabricated by direct laser sintering (DLS), fabricated by direct laser melting (DLM), fabricated by selective laser sintering (SLS), fabricated by selective laser melting (SLM), laser engineered Objects are fabricated by clean shaping (LENS) fabrication, electron beam melting (EBM) fabrication, direct metal deposition (DMD) fabrication, and other methods known in the art. figure 2 A non-limiting example of a suitable device is shown in more detail in .

[0013] In the exam...

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PUM

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Abstract

An additive manufacturing system includes a build room, a powder bed additive manufacturing device arranged in the build room, and a powder contamination detection system. The powder contamination detection system is in communication with the atmosphere in the build chamber.

Description

Background technique [0001] The subject matter described herein relates generally to the field of additive manufacturing. More specifically, the subject matter relates to detecting contamination in additive manufacturing environments. [0002] Additive manufacturing refers to a class of manufacturing methods characterized by the fact that a finished part is formed by building multiple thin sheets of material layer by layer. Additive manufacturing can involve the application of liquid or powdered materials to a process, followed by some combination of sintering, curing, melting and / or cutting to form layers. The process is repeated up to thousands of times to construct the desired finished part or article. [0003] Various types of additive manufacturing are known. Examples include stereolithography (additive manufacturing of objects from layers of cured photosensitive liquid), electron beam melting (using powder as a raw material and using an electron beam to selectively fu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D2/00G01N27/62B22D23/06B22F1/00B22F3/10
CPCH01J49/00B33Y10/00B33Y30/00B29C64/153B29C64/371Y02P10/25B22F10/28B22F10/32B22F10/25B33Y50/02B23K26/342B22F2201/20B23K15/0026B23K15/0086B23K15/06B23K26/03
Inventor S.米罗内茨W.V.小崔尔弗斯A.克卢查L.道托瓦
Owner UNITED TECH CORP