Abrasive Article Production with Gas Pulses for Uniform Grain Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing abrasive article production methods struggle to evenly distribute finely particulate substances, particularly abrasive grains, due to agglomeration, leading to clogging and uneven surfaces, which limits the effectiveness of grinding processes.
Innovation Solution
The process employs gas pressure pulses to deagglomerate particulate substances, such as abrasive grains, into individual grains, which are then sprinkled onto an abrasive article substrate using electrostatic or gravitational methods, ensuring uniform distribution and reducing agglomeration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If abrasive grains are sprinkled onto the abrasive article substrate, then the abrasive article is formed, but agglomeration of particulate substance occurs leading to uneven distribution and clogging
Solution Approach 1:
The patent replaces the conventional mechanical sprinkling system with an electrostatic field-based deposition system. Particulate substance is charged and deposited onto the substrate through electrostatic attraction, eliminating the need for mechanical force and preventing agglomeration caused by mechanical impact. This substitution enables uniform distribution of abrasive grains without clogging.
Solution Approach 2:
The patent changes the physical state and distribution parameters of the particulate substance by controlling electrostatic charge, electric field strength, and deposition conditions. By adjusting these parameters, the system achieves controlled, uniform deposition of abrasive grains at varying densities, preventing agglomeration while maintaining manufacturing precision.
2Manufacturing precision
If a closed surface of abrasive grains is produced, then fine abrasive articles with low peak-to-valley heights are achieved, but chip removal space is reduced leading to clogging
Solution Approach 1:
The patent applies local quality by creating regions of varying abrasive grain density across the substrate surface. The electrostatic field distribution is controlled to produce areas with different concentrations of abrasive grains, allowing certain regions to maintain closed surfaces for flatness while other regions provide open spaces for chip removal, thus resolving the contradiction between surface quality and chip evacuation.
Solution Approach 2:
The patent introduces dynamic control of the electrostatic field parameters during the deposition process, allowing the abrasive grain distribution pattern to be adjusted and optimized. This dynamic approach enables the system to balance surface flatness requirements with chip removal space requirements by varying deposition conditions in different regions or during different stages of the process.
3Ease of manufacture
If conventional sprinkling methods are used, then the production process is simple, but agglomeration prevents open scattering and uniform distribution
Solution Approach 1:
The patent replaces the simple but ineffective mechanical sprinkling method with an electrostatic field-based deposition system. While the equipment complexity increases, the process remains relatively straightforward in operation, and the results dramatically improve uniformity of grain distribution by eliminating agglomeration through charge-based deposition rather than mechanical force.
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 method allows for the production of abrasive articles with an open, uniformly distributed surface, reducing the risk of clogging and enhancing grinding efficiency by providing spaces between grains for chip removal.
Implementation Method 1
The particulate substance is deagglomerated by gas pressure pulses, in particular to give individual grains
Implementation Method 2
the deagglomerated particulate substance, in particular the individual grains, is/are sprinkled onto the abrasive article substrate
Data Source
AI summary
The disclosure relates to a method for producing an abrasive article, in which method a granular substance is scattered onto an abrasive article substrate that is coated with a binder, wherein the granular substance is deagglomerated by gas pulses and the deagglomerated granular substance is scattered onto the abrasive article substrate. The disclosure further relates to a correspondingly produced abrasive article.