Composite Forming Station for T-Profile Parts

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Solution Overview

Problem

The conventional manufacturing process of T-profile composite parts is labor-intensive, multi-step, and requires high precision, leading to delays and reduced production rates in the aeronautical industry.

Innovation Solution

A composite forming station that integrates all necessary means to form a T-profile composite part from a single planar laminate, using a series of rollers with increasing thickness and edge angle to bend the laminate into the desired shape, while also serving as a curing tool.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional multi-step process with separate L-profile formation and joining is used, then manufacturing precision can be maintained, but production rate decreases and lead time increases

Engineering Contradiction:
Improveproduction rateVSAvoidprocess complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate operations (forming first L-profile, forming second L-profile, joining them, and curing) into a single integrated forming station that processes the entire T-profile composite part in one continuous operation, eliminating intermediate handling and joining steps

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The forming station is designed to perform multiple functions simultaneously: it forms both L-profiles, joins them, cures the composite material, and positions the final T-profile all within a single device, replacing multiple dedicated stations

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of time

If conventional separate forming and curing stations are used, then manufacturing precision is maintained, but lead time increases due to multiple transport steps

Engineering Contradiction:
Improvelead timeVSAvoidoperational simplicity
Core Design Contradiction:
Loss of timeVSEase of operation

Solution Approach 1:

The forming and curing operations are merged into a single continuous process within one station, eliminating the need to transport formed L-profiles between separate forming and curing stations, thereby reducing lead time and intermediate handling

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If manual positioning and joining of L-profiles is used, then alignment precision can be achieved, but labor intensity increases and production rate decreases

Engineering Contradiction:
Improveproduction rateVSAvoidalignment precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent replaces manual positioning and joining operations with an automated forming mechanism that uses a single planar laminate and integrated forming tools to automatically position, form, and join the T-profile components with precise alignment, eliminating labor-intensive manual operations

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

4Shape

If planar laminate is bent into L-profile shape, then desired geometry is achieved, but wrinkles or undulations may occur on the web

Engineering Contradiction:
Improveprofile geometryVSAvoidsurface quality
Core Design Contradiction:
ShapeVSManufacturing precision

Solution Approach 1:

The patent uses a single planar laminate with a predetermined folding line that segments the material into first and second portions, which are then formed into L-profiles that are automatically joined, controlling the bending process to prevent wrinkles and undulations on the web

Inventive Principle:
Principle #1Segmentation

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 solution allows for the formation of T-profile composite parts in a single step, reducing lead time, increasing production rate, and eliminating misalignment risks, while maintaining high precision and avoiding wrinkles or undulations.

Implementation Method 1

The composite forming station further comprises heating means

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP3744511B1Composite forming station
Publication Date: 2025.04.09 AIRBUS OPERATIONS SL
  • EP3744511B1 patent drawingFigure 1
  • EP3744511B1 patent drawingFigure 2
  • EP3744511B1 patent drawingFigure 3A~3C

AI summary

The present invention provides a composite forming station (10) for forming a T-profile composite part (1) from a planar laminate (2) thereof. The composite forming station comprises a plurality of in-line rollers (13.1 - 13.6) arranged so as to follow a forming direction, wherein each roller comprises a thickness and an edge angle; such that the thickness and/or the edge angle of the rollers is successively increased along the forming direction; in such a way that the composite forming station gradually opens and forms the planar laminate into the T-profile composite part as it passes for subsequent in-line rollers.