Composite Fabrication System Air Pressure Control Debonding
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Solution Overview
Problem
Current composite structure manufacturing processes, particularly those using vacuum bag techniques, face challenges with removing long and heavy composite parts from tooling, which are time-consuming and pose ergonomic risks to operators, requiring significant manpower and increasing the risk of injury.
Innovation Solution
A method and system utilizing an air pressure control system that alternates between vacuum pressure and compressed air to lift the composite structure off the tool, eliminating the need for manual removal and reducing the risk of injury by inflating the first vacuum bag with compressed air to lift the composite structure from the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual removal methods are used to remove composite structures from tooling, then operators can directly handle and remove the parts, but the process becomes time-consuming and poses ergonomic risks to operators
Solution Approach 1:
The patent introduces a debonding agent as an intermediary substance between the composite structure and the tooling surface. This agent creates a debonding layer that allows the composite structure to be released from the tooling without direct manual handling, thereby improving removal speed while protecting operator safety from ergonomic risks
Solution Approach 2:
The patent employs a fluid delivery system that uses pneumatic or hydraulic mechanisms to apply the debonding agent uniformly across the tooling surface. This automated fluid delivery method eliminates the need for manual application, increasing removal speed and eliminating operator exposure to potential injury risks
2Ease of operation
If automated debonding systems are implemented, then operator safety is improved and removal time is reduced, but the device complexity increases
Solution Approach 1:
The patent designs the fluid delivery system to serve multiple functions: applying the debonding agent, controlling the debonding process, and facilitating easy removal. This multi-functionality reduces the need for separate dedicated components, thereby managing device complexity while maintaining operator safety benefits
Solution Approach 2:
The patent controls the debonding process by adjusting parameters such as fluid delivery rate, pressure, and timing. By optimizing these parameters, the system achieves effective debonding with simpler equipment configurations, balancing operator safety improvements with manageable system complexity
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
This approach reduces the time and complexity of removing composite structures, mitigates the risk of injury to operators, and enhances the efficiency of the debagging process by allowing the composite structure to be lifted and moved for further processing without manual handling.
Implementation Method 1
Vacuum pressure is applied to the first vacuum bag and the second vacuum bag
Implementation Method 2
The first vacuum bag is inflated with compressed air to lift the composite structure from the tool
Data Source
AI summary
A method and system for fabricating a composite structure is provided. A first vacuum bag is laid down on a surface of a tool. A composite material is positioned on top of the first vacuum bag on the tool. A second vacuum bag covers the composite material. Vacuum pressure is applied to the first vacuum bag and the second vacuum bag. The composite material is cured to form the composite structure. The first vacuum bag is inflated with compressed air to lift the composite structure from the tool.