ULTRASONIC CONSOLIDATION OF CONTINUOUS FILAMENT MATERIALS FOR GENERATIVE MANUFACTURING

DE602022038174T2Active Publication Date: 2026-06-10NORTHROP GRUMMAN SYSTEMS CORP
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Patent Information

Application Number
DE602022038174
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-08-12
Filing Date
2022-03-28
Publication Date
2026-06-10
Estimated Expiration
2042-03-28

AI Technical Summary

Technical Problem

Existing additive manufacturing machines face challenges with scalability, affordability, and flexibility due to gantry-style approaches, and continuous filament composite structures lack interlaminar strength if interfaces between layers are not intimately fused, leading to voids or cold bonds.

Method used

A continuous filament additive manufacturing machine equipped with a robotic system and an ultrasonic compaction device that melts and consolidates material as it is deposited, using ultrasonic vibration to fuse layers and improve interlaminar strength through ultrasonic compaction.

Benefits of technology

Enhances interlaminar properties, reduces part porosity, and improves surface smoothness and tolerance by ensuring intimate fusion of layers, enabling increased composite material applications and scalability.

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