Multi-Directional Abrasive Protrusions for Dust-Resistant Grinding
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Solution Overview
Problem
Solid abrasive articles face issues with defects, reduced grinding performance due to abrasion dust accumulation, and inefficient coolant lubrication, leading to rapid reduction in abrasion performance and the need for repeated abrasion.
Innovation Solution
The development of an abrasive article with multi-directional abrasion protrusions, specifically tetrahedral in shape with three or four sides, integrated with a binding agent and additives, allowing for improved loading resistance and durability, and the grouping of protrusions to enhance grinding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If abrasion protrusions are spaced apart to prevent dust accumulation, then dust accumulation is reduced, but grinding performance decreases due to reduced density
Solution Approach 1:
The invention transitions from 2D planar spacing to 3D spatial arrangement by utilizing vertical height differences. Protrusions are positioned at different heights (first height h1 and second height h2) to create multi-level spacing that prevents dust accumulation while maintaining high surface density.
Solution Approach 2:
The abrasive surface is segmented into multiple levels with protrusions at different heights. This segmentation creates distinct zones that facilitate dust removal while maintaining overall high density of abrasive elements.
2Ease of manufacture
If general abrasive articles are used with unidirectional rotation, then manufacturing is simple, but many spaces where abrasion is not performed are formed
Solution Approach 1:
The invention employs asymmetric protrusion shapes (e.g., triangular, quadrangular, pentagonal, hexagonal) with specific orientation arrangements. These asymmetric geometries ensure that during rotation, all surfaces of the workpiece come into contact with abrasive protrusions, eliminating non-abraded spaces while maintaining manufacturing feasibility.
Solution Approach 2:
The invention uses simple geometric protrusion shapes that are easy to manufacture but provide enhanced functionality through their arrangement and orientation, achieving complex multi-directional abrasion effects with simple structural elements.
3Ease of manufacture
If uniform constant-size abrasion protrusions are used, then manufacturing is easy, but attachment materials cannot be removed uniformly requiring repeated abrasion
Solution Approach 1:
The invention applies local quality variation by positioning protrusions at different heights (h1 and h2) and using different shapes for different protrusions. This creates zones with different abrasive characteristics that enable uniform removal of attachment materials across the entire workpiece surface in a single operation.
Solution Approach 2:
The invention changes geometric parameters of protrusions (height, shape, orientation) to optimize abrasion performance. By varying these parameters across different protrusions, the system achieves comprehensive material removal without requiring repeated abrasion cycles.
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 ensures efficient and even abrasion without attachment materials, increased grinding efficiency, and reduced abrasion time, achieving two times faster results compared to traditional methods while maintaining high performance without repeated abrasion cycles.
Implementation Method 1
abrasion performance is improved by providing various directional properties to an abrasion protrusion pattern
Data Source
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Figure 2A
AI summary
An abrasive article having a multi-directional abrasion protrusion (120, 130, 220, 320, 330, 420, 520, 530, 620, 630) according to an exemplary embodiment of the present invention includes a flexible base substrate (110, 210, 310, 410, 510, 610), and a plurality of abrasion protrusions integrally molded with the base substrate and having at least three sides forming a triangle, in which a plurality of abrasion protrusions has a directional property by grouping. According to this constitution, loading resistance and durability are excellent, there are no attachment materials attached to an abraded surface in the case where a flat surface is abraded, abrasion can be efficiently and evenly performed in a predetermined shape even though abrasion particles are not enlarged to perform abrasion or abrasion is not repeated several times by using particulates, and abrasion performance can be improved.