Dynamic Cure Control for Curable Materials Using Multi-Sensor Feedback

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional cure cycles for curable materials often take longer than necessary and can result in non-uniform temperature distribution, leading to inconsistent curing and potential material defects due to environmental and structural factors, which can increase time, labor, and costs.

Innovation Solution

A method and system that utilize sensors to measure temperatures and adjust cure settings based on established cure parameters, including hot and cold thresholds, alarms, and controller modes to maintain optimal curing conditions, allowing for dynamic adjustments of cure time and heater settings to ensure uniform heating and efficient curing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional cure cycles are used, then the curable material is cured, but the curing time is longer than necessary and temperature distribution is non-uniform

Engineering Contradiction:
Improvecuring speedVSAvoidtemperature uniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The cure cycle is made dynamic by continuously monitoring temperatures at multiple locations and adjusting heater settings in real-time. The controller dynamically modifies heating parameters based on feedback from temperature sensors, allowing the system to adapt to thermal variations and achieve uniform curing faster than static conventional cycles.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Different heater zones are controlled independently with different settings to account for local thermal variations in the workpiece. The system applies local quality control by adjusting heating parameters for specific regions based on their individual temperature requirements, ensuring uniform cure across the entire material.

Inventive Principle:
Principle #3Local quality

2Productivity

If higher temperatures are used to reduce curing time, then productivity increases, but material defects may occur due to exceeding desired temperature

Engineering Contradiction:
Improvecuring speedVSAvoidmaterial quality
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

Temperature sensors continuously monitor the cure process and provide feedback to the controller. Based on this feedback, the controller adjusts heater settings to maintain temperatures within the desired range, preventing both under-curing and overheating. This closed-loop control ensures high productivity while maintaining material quality.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically changes temperature parameters during the cure cycle based on real-time conditions. Rather than using a fixed high temperature, the controller adjusts temperature parameters to optimize curing speed while staying within safe limits to prevent material defects.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If manual monitoring and adjustment of cure cycles is performed, then temperature variations can be managed, but labor costs and human intervention requirements increase

Engineering Contradiction:
Improvecure consistencyVSAvoidautomation level
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The cure control system is self-regulating, using automated sensors and controllers to monitor and adjust temperatures without human intervention. The system serves itself by automatically detecting temperature deviations and correcting them through programmed heater control, eliminating the need for manual monitoring while maintaining high cure consistency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical monitoring and adjustment operations are replaced with an automated electronic control system. Temperature sensors, controllers, and heated blankets work together as an integrated automated system that substitutes for human operators, reducing labor costs while maintaining or improving cure consistency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 curing time, minimizes material defects, and lowers costs by ensuring consistent curing across all portions of the material, maintaining desirable material properties and reducing the need for human intervention in managing thermal variations.

Implementation Method 1

a heating system... initiate a cure of the curable material using a cure profile, cure parameters, and the heating system

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

The plurality of sensors is configured to measure temperatures at a plurality of locations of the curable material

Methodology Applied
Scientific EffectTemperature measurement: Thermography

Data Source

PatentUS9631870B2Cure control for curable materials
Publication Date: 2017.04.25 THE BOEING CO
  • US9631870B2 patent drawing
  • US9631870B2 patent drawing
  • US9631870B2 patent drawing

AI summary

A method and apparatus comprising a cure of a curable material. A cure of a curable material is initiated by using cure parameters. The cure parameters are based on material data related to curing the curable material. Temperature values are obtained based on temperatures measured periodically during the cure by a plurality of sensors. A cure setting is adjusted during the cure based on at least one cure parameter of the cure parameters and at least one temperature value of the temperature values to substantially maintain a desired effect. The cure parameters comprise a hot threshold, a cold threshold, a hot alarm, and cold alarm.