Abrasive Article With Hydrophobic Backing and Void Spaces
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Solution Overview
Problem
Existing abrasive articles on net-type backings face challenges in achieving both superior dust extraction and enhanced cut and life performance, with traditional methods lacking in these aspects.
Innovation Solution
The development of an abrasive article with a fabric substrate featuring strands that form void spaces, a hydrophobic and lipophobic coating on the attachment side, and a make layer with abrasive particles embedded in a resin composition, allowing for patterned abrasive coating and improved airflow for dust removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If abrasive is coated onto net-type knit backing with loops, then dust extraction and anti-loading properties are improved, but cut and life performance are lacking
Solution Approach 1:
The fabric substrate provides different properties in different regions: the open weave structure with void spaces provides dust extraction capability, while the make layer with abrasive particles provides cutting performance. This local differentiation allows each region to optimize for its specific function without compromising the other.
Solution Approach 2:
The invention combines the fabric substrate (providing dust extraction through void spaces) with a make layer containing abrasive particles (providing cutting performance). This composite structure integrates the advantages of both components: the open fabric structure for dust removal and the abrasive-containing make layer for effective cutting and extended tool life.
2Object-affected harmful factors
If holes are converted into abrasive discs for dust extraction, then airborne dust is minimized, but cut and life performance are compromised
Solution Approach 1:
The fabric substrate provides different properties in different regions: the open weave structure with void spaces provides dust extraction capability, while the make layer with abrasive particles provides cutting performance. This local differentiation allows each region to optimize for its specific function without compromising the other.
Solution Approach 2:
The invention combines the fabric substrate (providing dust extraction through void spaces) with a make layer containing abrasive particles (providing cutting performance). This composite structure integrates the advantages of both components: the open fabric structure for dust removal and the abrasive-containing make layer for effective cutting and extended tool life.
3Reliability
If patterned abrasive coating is applied, then cut and life performance are enhanced, but dust extraction may be compromised
Solution Approach 1:
The fabric substrate provides different properties in different regions: the open weave structure with void spaces provides dust extraction capability, while the make layer with abrasive particles provides cutting performance. This local differentiation allows each region to optimize for its specific function without compromising the other.
Solution Approach 2:
The abrasive coating is applied in a patterned manner rather than uniformly, creating distinct regions of abrasive coverage. This segmentation allows certain areas to maintain high abrasive concentration for cutting performance while other areas preserve the open fabric structure for dust extraction, optimizing both functions simultaneously.
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 enables effective dust extraction while maintaining or improving cut and life performance, by allowing for optimized abrasive patterns independent of the fabric substrate pattern and preventing resin bleed-through.
Implementation Method 1
The coating on the fabric substrate is both hydrophobic and lipophobic
Implementation Method 2
The coating on the fabric substrate is both hydrophobic and lipophobic
Implementation Method 3
a fabric substrate comprising strands forming first void spaces between the strands... a plurality of second void spaces extending through the make layer coinciding with first void spaces in the fabric substrate
Data Source
AI summary
The disclosure relates to an abrasive article that includes a fabric substrate comprising strands forming first void spaces between the strands. The fabric substrate comprising an abrasive side and an attachment side. The abrasive article also includes a coating on the attachment side. The abrasive article also includes a make layer joined to the fabric substrate on the abrasive side. The abrasive article also includes abrasive particles joined to the make layer. The abrasive article also includes a plurality of second void spaces extending through the make layer coinciding with first void spaces in the fabric substrate. The coating on the fabric substrate is both hydrophobic and lipophobic. The attachment side of the fabric substrate is substantially free of make layer.