Magnetic Abrasive Particles for Precise Alignment
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Solution Overview
Problem
Existing abrasive articles face challenges in achieving precise placement and orientation of abrasive particles, which affects their efficiency and performance in applications such as grinding and polishing.
Innovation Solution
The use of functional abrasive particles with magnetic and/or metallic materials disposed within holes extending through ceramic bodies, manipulated using electromagnetic fields to achieve precise alignment and orientation within a binder, enhancing the alignment and retention of abrasive particles in abrasive articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional coating or bonding methods are used to attach abrasive particles to backing, then abrasive articles can be manufactured, but precise placement and orientation of abrasive particles cannot be achieved
Solution Approach 1:
The patent replaces mechanical coating and bonding methods with electromagnetic field-based manipulation. Magnetic or conductive abrasive particles are aligned and placed using electromagnetic fields during the molding process, eliminating the need for separate coating operations and achieving precise placement without complex mechanical positioning systems
Solution Approach 2:
The patent changes the electrical or magnetic parameters of abrasive particles by coating them with conductive or magnetic materials. This parameter change enables the particles to respond to electromagnetic fields, allowing for precise control of their placement and orientation during the molding process through electromagnetic actuation
2Manufacturing precision
If electromagnetic fields are used to manipulate abrasive particles, then precise alignment and orientation can be achieved, but the abrasive particles require additional magnetic or conductive materials
Solution Approach 1:
The patent creates composite abrasive particles by combining traditional abrasive materials with magnetic or conductive coatings. These composite particles maintain their abrasive functionality while gaining electromagnetic responsiveness, enabling precise alignment and orientation control during manufacturing without significantly increasing overall structural complexity
Solution Approach 2:
The magnetic or conductive coatings on abrasive particles serve multiple functions: they enable electromagnetic manipulation for precise placement, and they can also influence the particle's interaction with the molding process and final product performance. This multi-functionality reduces the need for separate alignment mechanisms
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 improved alignment and retention of abrasive particles, leading to enhanced performance and efficiency in abrasive articles by ensuring consistent and precise orientation, thereby improving the abrading process.
Implementation Method 1
functional abrasive particles with magnetic and/or metallic material disposed within respective holes extending through the particles according to the present disclosure can be manipulated using electromagnetic fields
Implementation Method 2
the functional material comprises a first binder retaining a plurality of functional particles that are magnetizable, metallic, or a combination thereof
Data Source
AI summary
A functional abrasive particle comprises a ceramic body having at least one hole extending therethrough. A functional material is at least partially disposed within the hole. The functional material contains a binder and functional particles that are magnetizable, metallic, or both. Methods of making functional abrasive particles, and abrasive articles including them are also disclosed.