Corrugated Composite Board Machinability and Edge Banding
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Solution Overview
Problem
Existing composite structural components, particularly those with honeycomb centers, are challenging to machine, difficult to edge band, and costly to produce.
Innovation Solution
A composite board design featuring a pair of corrugated layers bonded with a cardboard honeycomb in between, using specific materials and manufacturing processes such as PVA glue bonding and CNC machining, along with a polyvinyl chloride edge band for enhanced machinability and edge handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional honeycomb centers are used in composite boards, then structural strength is improved, but machinability deteriorates
Solution Approach 1:
The patent changes the material parameter of the honeycomb core from traditional rigid honeycomb to corrugated board material, which maintains structural strength while significantly improving machinability. The corrugated structure provides both strength and ease of cutting with standard woodworking tools.
Solution Approach 2:
The patent creates a composite structure using corrugated boards as both the face layers and the core material. This composite approach combines the strength benefits of honeycomb structure with the machinability of corrugated board, resolving the contradiction between structural integrity and ease of manufacturing.
2Strength
If traditional honeycomb centers are used in composite boards, then structural strength is improved, but edge banding difficulty increases
Solution Approach 1:
By changing the core material parameter from traditional honeycomb to corrugated board, the edge profile becomes compatible with standard edge banding tools and materials. The corrugated structure allows for clean edge finishing that is difficult to achieve with conventional honeycomb cores.
3Reliability
If traditional composite board structures are used, then structural integrity is maintained, but production cost increases
Solution Approach 1:
The patent uses the same corrugated board material for both the face layers and the core, eliminating the need for separate honeycomb core manufacturing and assembly. This homogenization of materials reduces production complexity and cost while maintaining structural integrity through the layered corrugated construction.
Solution Approach 2:
The patent merges the face sheet and core functions into a single integrated corrugated board structure, where the corrugated flutes serve as both the structural core and are formed from the same material as the outer layers. This integration eliminates additional manufacturing steps and material costs associated with traditional composite construction.
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 solution enables the production of composite boards that are easily machined, cost-effective, and capable of supporting significant loads with minimal deflection, while also simplifying edge banding and handling processes.
Implementation Method 1
bonded with PVA glue
Data Source
AI summary
A composite includes a board. The board includes: a pair of corrugated layers, each corrugated layer being formed from two corrugated sheets bonded together; and a cardboard honeycomb disposed between and bonded to the corrugated layers, the honeycomb being orientated such that the cells extend between the corrugated layers. The board can be cut using conventional machinery without fraying [thereby requiring little or no sanding] and can be edgetaped without being crushed using conventional edge taping machinery.