Grooved Flexible Laminated Board for Warping Control
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Solution Overview
Problem
Existing thin bamboo (wood) laminated boards suffer from high internal stress, leading to deformation, warping, and limited application to curved or irregular shapes due to insufficient stress reduction and rigidity.
Innovation Solution
A flexible laminated board design with grooves on the board surface, divided into regional units by grooves, and lined with fiber cloths to release internal stress, ensuring stability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the thickness of the bamboo (wood) laminated board is reduced, then the board becomes more flexible and suitable for curved surfaces, but the internal stress increases causing deformation and warping
Solution Approach 1:
The patent divides the board surface into multiple regional units by grooves, which segments the continuous structure into discrete zones. This segmentation allows each region to independently manage internal stress, preventing the propagation of stress across the entire board and reducing overall deformation while maintaining flexibility.
Solution Approach 2:
The patent introduces grooves with specific shapes and depths at strategic locations on the board surface. These localized structural modifications create areas with different mechanical properties - the grooved regions can accommodate stress and deformation while the intervening regions maintain structural integrity, achieving a balance between flexibility and stability.
2Stability of the object's composition
If resin content is increased to enhance dimensional stability, then the board becomes more rigid and resistant to deformation, but the flexibility for curved surface application is reduced
Solution Approach 1:
Instead of uniformly increasing resin content throughout the board, the patent segments the board structure using grooves. This allows the board to achieve dimensional stability through structural design rather than material composition changes, preserving flexibility while preventing deformation.
Solution Approach 2:
The patent changes the structural parameters of the board by introducing grooves with specific shapes and depths, rather than changing material parameters like resin content. This structural parameter modification achieves the desired balance between stability and flexibility without the trade-offs associated with material composition changes.
3Stability of the object's composition
If special preparation processes are adopted to reduce internal stress, then the board shows improved stability, but the manufacturing complexity and cost increase
Solution Approach 1:
The grooves are formed during the board manufacturing process itself, performing the stress-management function in advance. This preliminary structural design eliminates the need for subsequent special preparation processes, reducing manufacturing complexity while maintaining dimensional stability.
Solution Approach 2:
The groove structure enables the board to self-manage its internal stress through its own geometry. The board's structure serves the function of stress reduction without requiring external intervention or complex preparation processes, achieving stability through self-service design.
Data Source
AI summary
A flexible laminated board and a preparation method thereof are provided. The flexible laminated board includes a laminated board body. The laminated board body is formed by laminating and laying a plurality of board units in a thickness direction, and an outermost surface of the laminated board body in a lamination direction is a board surface of the laminated board body. At least one board surface of the laminated board body is provided with a groove with a shape and a depth, and the board surface of the laminated board body is divided into a plurality of regional units by the groove.