Three dimensional printing

A 3D printer, fiber technology, applied in 3D printing. field, which can solve problems such as parts not being durable

Active Publication Date: 2016-02-17
格雷戈里·托马斯·马克
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, parts made using SLA are generally not durable and are often not UV-stabilized, and instead are often used for proof-of-concept work

Method used

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Embodiment Construction

[0124] The inventors have recognized that one of the basic limitations associated with the usual additive manufacturing methods is the strength and durability of the resulting parts. For example, fuse manufacturing results in parts exhibiting lower strength than comparable injection molded parts. Although not wishing to be bound by theory, the decrease in strength is due to weaker bonds (also bubbles and voids) between adjacent strips of deposited material compared to continuous and substantially void-free materials formed in, for example, injection molding. The inventor also recognized that the prepreg composite construction method using sheet-based technology to form three-dimensional parts is time-consuming and difficult to handle, resulting in high costs. In addition, bending such sheets around a curve, such as a circle, may cause fiber overlap, snapping, and / or twisting, resulting in undesirable soft spots in the resulting part. As for the three-dimensional printer using ...

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PUM

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Abstract

Three dimensional printers, and reinforced filaments, and their methods of use are described. A void free reinforced filament is fed into an extrusion nozzle. The reinforced filament includes a core, which may be continuous or semi-continuous, and a matrix material surrounding the core. The reinforced filament is heated to a temperature greater than a melting temperature of the matrix material and less than a melting temperature of the core prior to extruding the filament from the extrusion nozzle.

Description

Technical field [0001] Aspects of the invention relate to three-dimensional printing. Background technique [0002] Since the initial development of 3D printing (also known as additive manufacturing), various types of 3D printing and printers have been conceived to construct layer-by-layer parts. For example, stereolithography (SLA) produces high-resolution parts. However, parts made with SLA are generally not durable and are often not UV stable. Instead, they are usually used for proof-of-concept work. In addition to SLA, fuse manufacturing (FFF) three-dimensional printers are also used to construct parts by depositing continuous filament beads of acrylonitrile-butadiene-styrene (ABS) or similar polymers. In some similar technologies, "tow prepregs" containing continuous fiber reinforced materials containing resin are deposited in a "raw state". Subsequently, the part is placed under vacuum and heated to remove the entrained air gap present in the deposited material and fully...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/06B32B3/02B32B38/14B41M5/36B41J29/40D01F8/04B29C48/154B29C48/05B29C48/92
CPCB33Y10/00B33Y50/02B33Y40/00B33Y30/00B29C48/154B29C48/92B29C70/384B29C2948/92571B29C2948/92704B29C2948/92904B29C48/2528B29C2948/92076B29C48/05B33Y70/10B29C64/118B29C64/209B29C64/106B29B9/06B29B9/14B29B15/14B29C69/001B29K2101/12B29K2105/08
Inventor 格雷戈里·托马斯·马克安东尼·S·戈兹
Owner 格雷戈里·托马斯·马克
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