Composite Part Manufacturing via Alternating Fiber Orientation
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Solution Overview
Problem
Existing additive manufacturing methods fail to produce composite parts with optimized reinforcement distribution and orientation, leading to suboptimal strength, durability, and wear resistance.
Innovation Solution
The method involves alternating layers of fiber reinforcing materials with different orientations and densities, applied using 3D printing, followed by curing, to create a composite product with enhanced mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional additive manufacturing methods are used to produce composite parts, then the manufacturing process is simple, but the reinforcement distribution and orientation are not optimized, leading to suboptimal strength and durability
Solution Approach 1:
The manufacturing process is segmented into distinct sequential steps: depositing matrix material, applying first fiber reinforcing material, applying second fiber reinforcing material, and curing. This segmentation allows each layer to be optimized independently for specific directional strength requirements, resolving the contradiction between achieving optimized reinforcement and maintaining process simplicity.
Solution Approach 2:
Different fiber reinforcing materials are applied with different orientations (first direction vs. second direction orthogonal to first) and different distribution densities to specific regions of the composite part. This local quality approach ensures that each region has the optimized reinforcement configuration needed for its specific structural requirements, directly improving overall part strength while maintaining manufacturing feasibility.
2Reliability
If fiber reinforcing materials are applied with optimized distribution and orientation, then strength and durability are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The manufacturing process uses periodic alternating action by cycling through the sequence of depositing matrix material, applying first fiber reinforcing material, and applying second fiber reinforcing material. This periodic pattern establishes a predictable, repeatable manufacturing rhythm that improves durability through consistent alternating layer orientations while keeping the process manageable through regular repetition.
Solution Approach 2:
The invention combines multiple fiber reinforcing materials with different orientations and distribution densities within a single composite part structure. This composite materials approach achieves superior durability by integrating materials with complementary properties in a systematic layered configuration, where each material contributes specific performance characteristics to the overall structure.
3Duration of action of moving object
If alternating layers of fiber reinforcing materials with different orientations are applied, then wear resistance and fatigue resistance are improved, but the manufacturing time increases
Solution Approach 1:
The process applies fiber reinforcing materials in partial layers with different orientations rather than attempting to achieve complete omnidirectional reinforcement in a single step. This partial action approach focuses reinforcement on specific directional requirements (first direction and second orthogonal direction), achieving adequate fatigue resistance while maintaining reasonable manufacturing speed by avoiding unnecessary excessive material application.
Solution Approach 2:
The manufacturing process maintains continuous useful action by seamlessly transitioning between depositing matrix material, applying first fiber reinforcing material, and applying second fiber reinforcing material without idle interruptions. This continuous workflow maximizes manufacturing efficiency while the alternating layer structure ensures continuous improvement of fatigue resistance throughout the part construction process.
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 results in composite parts with improved strength, stiffness, fatigue resistance, and wear resistance by optimizing the distribution and orientation of reinforcing fibers, specifically in gear teeth structures.
Implementation Method 1
The material used in 3DP is typically a thermoplastic material which is melted (or is already in liquid form) and is injected or deposited in very small amounts at a time onto a substrate or platen as a first layer
Implementation Method 2
curing the composite part matrix includes applying a heat treatment to the composite part matrix
Implementation Method 3
curing the composite part matrix includes applying a heat treatment and a sintering process to the composite part matrix
Data Source
AI summary
An additive manufacturing method includes providing a first composite material and forming a composite part matrix using the first composite material and defining a first layer, applying a first fiber reinforcing material to the composite part matrix atop and in contact with the first layer of the composite part matrix such that fibers of the first fiber reinforcing material are oriented in a first direction and form a second layer on the composite part matrix, applying a second fiber reinforcing material to the composite part matrix atop and in contact with the first fiber reinforcing material such that fibers of the second fiber reinforcing material are oriented in a second direction orthogonal to the first direction and form a third layer on the composite part matrix, applying the first composite material to the composite part matrix, and curing the composite part matrix to create a composite product.