Induction Insert Removal for Damage-Free Laminate Repair
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for removing thermally conductive inserts such as titanium, aluminum, or stainless-steel bushings from laminate structures, such as composite laminates or sandwich panels, often damage the laminate by mechanical milling, compromising its structural integrity.
Innovation Solution
An insert induction remover device uses induction heating to soften the adhesive bond between the insert and the laminate without exceeding the glass transition temperature, allowing the insert to be removed without mechanical damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If mechanical milling is used to remove inserts, then the insert can be removed from the laminate, but the laminate structure is damaged and its structural integrity is compromised
Solution Approach 1:
The patent replaces the mechanical milling system with an induction heating system. The induction heater applies electromagnetic energy to heat the insert, causing the adhesive bond to soften and fail, allowing insert removal without mechanical contact with the laminate. This substitution of mechanical action with thermal action resolves the contradiction by enabling insert removal while preserving laminate integrity.
Solution Approach 2:
The patent changes the physical state of the adhesive bond through temperature modification. By heating the insert to a specific temperature range, the adhesive transitions from a rigid bonded state to a softened state, reducing its bonding strength and allowing insert removal. This parameter change (temperature) enables easy insert removal without damaging the laminate structure.
2Ease of repair
If induction heating is applied to the insert, then the adhesive bond softens and the insert can be removed, but excessive heat may damage the laminate structure
Solution Approach 1:
The patent incorporates a feedback control system that continuously monitors the temperature of the insert and adjusts the induction heating power accordingly. The system maintains the insert temperature within a predetermined safe range, ensuring the adhesive bond softens sufficiently for removal while preventing excessive heat from damaging the laminate structure. This closed-loop control resolves the contradiction between achieving bond softening and avoiding thermal damage.
Solution Approach 2:
The patent precisely controls the temperature parameter of the insert during induction heating. By maintaining the temperature within a specific range (above the adhesive's glass transition temperature but below the laminate's damage threshold), the system achieves adhesive softening for easy insert removal while preventing thermal damage to the laminate. This controlled parameter change resolves the contradiction between bond softening and thermal protection.
3Ease of operation
If the adhesive bond is softened by heating, then the insert can be removed without mechanical damage, but the process requires precise temperature control to avoid damaging the laminate
Solution Approach 1:
The patent employs a feedback control system with temperature sensors and automated power adjustment that simplifies the operator's task. The system automatically monitors and regulates the heating process, eliminating the need for manual temperature estimation or complex operator judgment. This automated feedback mechanism makes the operation easier while managing the complexity of temperature control through intelligent automation.
Solution Approach 2:
The induction heating system is designed to self-regulate the heating process based on the thermal properties of the insert and adhesive. The system automatically adjusts heating power to maintain optimal temperature, reducing the need for external intervention or complex manual control. This self-service capability simplifies operation while managing temperature control complexity through automated self-regulation.
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 device effectively removes inserts while preserving the structural integrity of the laminate by controlling thermal exposure and mechanical load, enabling safe replacement or repair of thermally conductive inserts.
Implementation Method 1
An insert induction remover device uses induction heating to soften the adhesive bond between the insert and the laminate
Data Source
AI summary
A method of removing an insert from a substrate, the method including heating the insert using induction, melting at least partially or softening an adhesive material between the insert and the substrate, applying a force to break an adhesive bond between the insert and the substrate, and removing the insert without damaging the substrate.