Aircraft Canopy Interface Layer Ablation for Damage-Free Coating Removal
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Solution Overview
Problem
The manual removal of transparent coatings from aircraft canopies is labor-intensive and time-consuming, requiring many man-hours and often damaging the underlying structures.
Innovation Solution
A system comprising a robotic arm with a touch probe and laser head, controlled by a computer system, which uses laser ablation to remove the interface layer between the transparent outer layer and the aircraft canopy, allowing for precise and automated removal without damaging the underlying structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual processes are used to remove transparent coatings, then the process is simple to implement, but it is labor-intensive and time-consuming
Solution Approach 1:
The patent replaces manual mechanical scraping and chemical etching processes with an automated laser ablation system. The laser head delivers precise energy pulses to vaporize the interface layer, eliminating the need for manual labor while dramatically increasing removal speed and consistency.
Solution Approach 2:
The system dynamically adjusts laser parameters including pulse duration, energy density, and scanning speed to optimize the ablation process. By controlling these parameters, the system achieves rapid coating removal while maintaining precision and preventing damage to underlying structures.
2Reliability
If manual removal methods are used, then equipment requirements are minimal, but the underlying structures are often damaged
Solution Approach 1:
The laser ablation process replaces contact-based mechanical removal methods with non-contact optical energy delivery. This eliminates physical stress and chemical corrosion that damage underlying structures, while the automated control system ensures consistent, damage-free removal across the entire canopy surface.
Solution Approach 2:
The system uses the interface layer itself as an intermediary target, selectively ablating this sacrificial bonding layer while leaving the transparent coating and underlying canopy intact. This approach allows clean separation without direct contact or harsh chemicals that could damage sensitive components.
3Productivity
If automated laser ablation is used, then coating removal speed increases, but measurement and positioning precision requirements increase
Solution Approach 1:
The system performs preliminary 3D scanning and surface mapping of the canopy before the actual laser removal process. This pre-characterization of the surface geometry allows the control system to plan optimal laser paths and adjust parameters in advance, ensuring both high speed and high precision during the ablation process.
Solution Approach 2:
The system continuously monitors the ablation process using real-time sensing of the canopy surface position and laser interaction. This feedback loop allows dynamic adjustment of laser parameters and scanning speed to maintain precision even at high removal rates, adapting to variations in surface geometry and material properties.
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
The system significantly reduces the time and expense associated with removing transparent coatings by automating the process, ensuring the underlying aircraft structures remain undamaged during the removal of the transparent performance layers.
Implementation Method 1
ablating an interface layer between the transparent outer layer and the canopy using a laser head
Data Source
AI summary
A system includes a robotic arm, a rotisserie control linkage, and a computer system. The robotic arm includes a touch probe and laser head. The rotisserie control linkage is configured to couple to a transport cart. The computer system is communicatively coupled to the robotic arm and the rotisserie control linkage and is configured to control the system to probe, using the touch probe of the robotic arm, a transparent outer layer of an aircraft canopy located on the transport cart in order to determine surface measurements of the aircraft canopy. The computer system also controls the system to ablate, using a plurality of predetermined parameters and the laser head of the robotic arm, an interface layer located between the transparent outer layer and the aircraft canopy, wherein movements of the robotic arm during the ablation are based on the surface measurements.