Drop draw/extrude (DD/E) printing method

US11130279B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Christopher A. Howe · Manjimup, AU
• Justin Hicks · Merced, US
• Michelle Louise Gee · Melbourne, AU
• Thomas Wilson · Wyoming, US
• Adrian Mouritz · Melbourne, AU

Key dates

• Filing date: Jan 31, 2020
• Grant date: Sep 28, 2021
• Expiry date: Jan 31, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2101/12
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A drop draw and extrusion method that creates anchor points around, within, or around and within, the region where a two dimensional fibrous architecture is deposited. Between the anchor points, a nozzle translates at high speeds to draw, extrude, or draw and extrude (depending on the print settings), a filament from the nozzle and build a two dimensional network of filaments connected by the anchors. Webbed architectures fabricated using the methods described herein exhibit superior structural properties.