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Cartridge vat-based additive manufacturing apparatus and method

A technology for additive manufacturing and barrel placement, which is applied in the field of additive manufacturing and can solve problems such as waste and non-reusability

Inactive Publication Date: 2020-06-12
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One problem with tape casting is waste because the tape is not reusable

Method used

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  • Cartridge vat-based additive manufacturing apparatus and method
  • Cartridge vat-based additive manufacturing apparatus and method
  • Cartridge vat-based additive manufacturing apparatus and method

Examples

Experimental program
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Embodiment Construction

[0020] Referring to the drawings, wherein like reference numerals indicate like elements throughout the several views, figure 1 An example of one type of suitable apparatus 10 for carrying out embodiments of the additive manufacturing method described herein is schematically shown. This method provides for a plurality of buckets 11 for sequential use with the device 10 . Thus, multiple layers can be formed so that successive layers can be made from different resins. In addition, the bucket can be cleaned while producing subsequent layers.

[0021] This method is primarily intended for use with lower viscosity resins, slurries and pastes. This method can also be used with higher viscosity resins and / or powders. It should be understood that other configurations of devices may be used to perform the method. The basic components of the exemplary device 10 include a platform 14 , a radiant energy device 18 and a barrel transport mechanism 20 .

[0022] Each vat 11 includes a f...

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Abstract

A method for producing a component layer-by-layer includes: placing in a loading zone a vat; loading the vat into a build zone of an additive manufacturing apparatus utilizing a vat transport mechanism; executing a build cycle, including: positioning a stage relative to the build surface so as to define a layer increment in the resin; selectively curing a resin contained within the vat using application of radiant energy in a specific pattern so as to define the geometry of a cross-sectional layer of the component; moving the vat and the stage relatively apart so as to separate the component from the build surface; unloading the vat from the build zone into an unloading zone; and repeating the steps of placing, loading, executing the build cycle, and unloading, for a plurality of layers, using a plurality of vats in series, until the component is complete.

Description

technical field [0001] The present invention relates generally to additive manufacturing, and more particularly to methods for curable material handling in additive manufacturing. Background technique [0002] Additive manufacturing is a process in which material is built up layer by layer to form a part. Stereolithography is an additive manufacturing process that uses a liquid vat of radiant energy-curable photopolymer "resin" and a curing energy source such as a laser. Similarly, DLP 3D printing employs a two-dimensional image projector to build parts one layer at a time. For each layer, a projector flashes a radiation image of the cross-section of the part on the surface of the liquid or through a transparent object that defines the constrained surface of the resin. Exposure to radiation cures and solidifies the pattern in the resin, bonding it to the previously cured layer. Other types of additive manufacturing processes utilize other types of radiant energy sources t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C64/124B29C64/255B29C64/30B29C64/264B29C64/386B29C64/35B33Y40/00B33Y30/00B33Y10/00B33Y50/00
CPCB29C64/255B29C64/176B29C64/135B29C64/245B29C64/227B33Y40/00B29C64/357B33Y10/00B33Y30/00B29C64/264B29C64/35
Inventor 玛丽·凯瑟琳·汤普森
Owner GENERAL ELECTRIC CO