INDUSTRY COMPONENT

Abrasive Grains

Hard, sharp particles used in grinding wheels for material removal and surface finishing in industrial applications.

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Component Specifications

Definition
Abrasive grains are precisely manufactured mineral or synthetic particles with controlled size, shape, and hardness that serve as the cutting elements in bonded abrasive tools like grinding wheels. They perform material removal through micro-cutting action when pressed against a workpiece at high speeds, with their properties determining cutting efficiency, surface finish quality, and tool life.
Working Principle
Abrasive grains function through mechanical micro-cutting and fracture mechanisms. When a grinding wheel rotates at high speed, individual grains engage with the workpiece surface, removing material through shearing and plowing actions. As grains wear or fracture, fresh cutting edges are exposed, maintaining cutting efficiency. The process involves three phases: grain penetration, chip formation, and grain wear/fracture.
Materials
Common materials include aluminum oxide (Al₂O₃), silicon carbide (SiC), cubic boron nitride (CBN), and diamond. Aluminum oxide is general-purpose for ferrous metals; silicon carbide is for non-ferrous metals and non-metallics; CBN and diamond are superabrasives for hard materials like hardened steel and ceramics.
Technical Parameters
  • Shape Angular, blocky, or rounded
  • Purity 95-99.9% depending on grade
  • Hardness Mohs 9-10 for conventional, 10 for superabrasives
  • Grain Size F4-F2200 (coarse to fine)
  • Fracture Toughness High for durable grains, low for self-sharpening
Standards
ISO 8486, ISO 6106, DIN 69100, DIN 69101

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Abrasive Grains.

abrasive grains grinding wheel abrasives aluminum oxide grains silicon carbide abrasives CBN grains diamond abrasives abrasive specifications industrial grinding materials Abrasive Grains in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Grinding Wheel

A rotating abrasive tool used for material removal and surface finishing in grinding operations.

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Engineering Analysis

Risks & Mitigation
  • Grain fracture causing workpiece damage
  • Inhalation of abrasive dust
  • Improper grain selection leading to poor surface finish or excessive wheel wear
  • Thermal damage to workpiece from incorrect abrasive properties
FMEA Triads
Trigger: Excessive grinding pressure or incorrect grain hardness
Failure: Premature grain fracture or dulling
Mitigation: Select grains with appropriate fracture toughness; optimize grinding parameters (speed, feed, coolant)
Trigger: Incompatible grain-material pairing
Failure: Rapid wheel wear or workpiece burning
Mitigation: Match abrasive type to workpiece material (e.g., Al₂O₃ for steel, SiC for aluminum)
Trigger: Contaminated or inconsistent grain quality
Failure: Unpredictable grinding performance and surface defects
Mitigation: Source from certified suppliers; implement incoming quality control per ISO 8486

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Grain size distribution within ±5% of nominal size per ISO 8486; chemical purity ≥95% for standard grades
Test Method
Sieving analysis per ISO 8486-1 for grain size; hardness testing via Knoop or Vickers methods; fracture testing via single-grain compression

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between aluminum oxide and silicon carbide abrasive grains?

Aluminum oxide grains are tougher and better for grinding ferrous metals like steel, while silicon carbide grains are harder and sharper, making them suitable for non-ferrous metals, ceramics, and non-metallic materials.

How does grain size affect grinding performance?

Coarse grains (larger grit numbers like F24-F60) remove material faster but produce rougher surfaces. Fine grains (smaller grit numbers like F180-F1200) create smoother finishes but remove material more slowly.

What are superabrasive grains?

Superabrasives include cubic boron nitride (CBN) and diamond grains, which are significantly harder than conventional abrasives. CBN is used for hard ferrous metals, while diamond is for non-ferrous metals, ceramics, and composites.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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