Grinding Tool With Partially Movable Fiber Layers
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Solution Overview
Problem
Existing grinding tools face challenges in achieving high vibration and noise damping while maintaining cutting performance and long service life, with existing solutions either compromising on stability or being difficult to manufacture.
Innovation Solution
A grinding tool design featuring a base body with partially movable fiber layers embedded in a binder, allowing for relative movement and vibration damping, combined with a flexible abrasive layer applied electrostatically, which ensures stability and extended tool life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If so much binder is used that the base body has sufficient stability, then stability is improved, but the fiber layer forms a continuous and/or full-surface bond with the binder which reduces vibration damping
Solution Approach 1:
The binder is applied in a controlled manner to create local bonding zones rather than continuous coverage. The fiber layers are bonded to the support structure at specific locations (e.g., peripheral regions and intermediate zones) while leaving other areas unbonded or partially bonded, allowing vibration damping in unbonded regions while maintaining stability at bonded locations.
Solution Approach 2:
Instead of applying binder over the entire surface area, the invention uses partial bonding where the binder is applied only to specific regions of the fiber layers. This partial action provides sufficient stability for the intended application while leaving enough unbonded fiber regions to maintain vibration and noise damping properties.
2Stability of the object's composition
If the fiber layer is firmly connected to the binder, then stability is improved, but relative movement within the fiber layer is reduced which decreases vibration damping
Solution Approach 1:
The fiber layer structure is segmented into multiple zones with different bonding characteristics. Peripheral regions may have stronger bonding for structural stability, while intermediate and central regions have weaker or no bonding to allow fiber movement for vibration damping. This segmentation creates a gradient of bonding strength across the fiber layer.
Solution Approach 2:
The binder acts as an intermediary substance that provides selective bonding. Rather than creating uniform strong bonds throughout, the binder is used to create localized bonding zones that mediate between the need for structural stability and the need for vibration damping through controlled flexibility in unbonded regions.
3Object-affected harmful factors
If a multi-layer structure with damping layers is used, then vibration damping is improved, but manufacturing complexity increases
Solution Approach 1:
The invention merges the support structure and damping function into a single integrated base body. The fiber layers themselves serve as both the structural support and the vibration damping element, eliminating the need for separate damping layers. The binder provides both structural bonding and controlled flexibility to enable vibration damping without requiring additional damping materials.
Solution Approach 2:
The fiber layers perform multiple functions simultaneously: they provide structural support as the base body framework, they serve as the vibration damping mechanism through their ability to move relative to each other in unbonded regions, and they provide noise damping through friction and energy dissipation during fiber movement. This multi-functionality eliminates the need for separate specialized damping components.
4Ease of manufacture
If the grinding layer is applied electrostatically, then manufacturing ease is improved, but adhesion strength may be reduced compared to mechanical bonding
Solution Approach 1:
The invention replaces mechanical bonding methods (such as adhesives or mechanical fasteners) with electrostatic application for attaching the grinding layer. This substitution simplifies the manufacturing process by eliminating complex bonding operations while the resulting electrostatic bond provides sufficient adhesion for the intended application, balancing ease of manufacture with adequate strength.
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 design achieves high vibration and noise damping with enhanced cutting performance and flexibility, while maintaining the tool's stability and ease of production, allowing for efficient use in various applications.
Implementation Method 1
The abrasive layer preferably comprises an abrasive grain layer which is applied electrostatically to the base body.
Data Source
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AI summary
A grinding tool (1) has a main body (2) with at least one fiber ply (F1, F2) embedded in a binding agent (B). A grinding layer (3) is arranged on the main body (2). The at least one fiber ply (F1, F2) is arranged partially movably in the binding agent (B). In this way, within the main body (2) and within the at least one fiber ply (F1, F2), a relative movement is realized which ensures a high degree of vibration and noise damping.