Composite 3D Printing with Auxiliary Tool Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing continuous fiber 3D printing systems face limitations in structure strength and operational efficiency, particularly in the curing process and support mechanisms for fabricating composite structures with complex shapes and unsupported lengths.
Innovation Solution
A system comprising a print head and an auxiliary tool, such as a conveyor belt or roller, that works in conjunction with robotic supports to discharge and cure composite materials, allowing for continuous manufacturing of composite structures with enhanced strength and flexibility by using continuous fibers and matrix materials, and incorporating cure enhancers to control the curing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If continuous fiber reinforcement is used to increase structure strength, then the strength of the composite structure is multiplied beyond matrix-dependent strength, but the complexity of the manufacturing system increases due to the need for auxiliary tools and support mechanisms
Solution Approach 1:
A support mechanism acts as an intermediary between the print head and the final structure, providing temporary support during fabrication of unsupported lengths. The support receives composite material from the print head and transfers it to form the final structure, enabling fabrication of complex geometries that would otherwise require permanent molds or fixtures.
Solution Approach 2:
The manufacturing system is divided into separate functional components: a print head for material deposition, auxiliary tools for receiving and shaping material, and support mechanisms for maintaining structure integrity. This segmentation allows each component to be optimized independently while working together to achieve high-strength composite structures.
2Ease of manufacture
If a head-mounted cure enhancer is used to enable immediate curing of the matrix, then unsupported structures can be fabricated in free space, but the device complexity and energy consumption increase
Solution Approach 1:
The cure enhancer is integrated directly into the print head assembly, merging the deposition and curing functions into a single unit. This eliminates the need for separate curing equipment and allows immediate curing of the matrix as material is deposited, enabling fabrication of unsupported structures in free space without requiring permanent molds or extensive support infrastructure.
3Productivity
If auxiliary tools such as conveyor belts or rollers are used to receive composite material, then continuous manufacturing efficiency is improved, but the device complexity and operational complexity increase
Solution Approach 1:
Conveyor belts or rollers are used to continuously receive and transport composite material from the print head, maintaining uninterrupted material flow during the fabrication process. This continuous action eliminates idle time between deposition cycles and enables high-speed manufacturing of long composite structures without requiring frequent pauses or manual intervention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the efficient and flexible manufacturing of composite structures with increased strength and complex shapes, allowing for unsupported structures to be fabricated with improved curing rates and reduced need for permanent molds, while maintaining control over the curing process and material trajectory.
Implementation Method 1
a head-mounted cure enhancer (e.g., a UV light, an ultrasonic emitter, a heat source, a catalyst supply, etc.) is activated to initiate and/or complete curing of the matrix. This curing occurs almost immediately
Data Source
AI summary
A system is disclosed for use in additively manufacturing a composite structure. The system may include at least one support, and a print head operatively connected to the at least one support and configured to discharge composite material. The system may further include an auxiliary tool operatively connected to the at least one support and configured to receive the composite material discharged by the print head.