Electroplated Diamond Abrasive

Updated: 2026-09-16

Overview

Electroplated Diamond Abrasive consists of synthetic diamond particles permanently bonded to a metal (usually nickel or cobalt) substrate through an electroplating process. This creates a single-layer abrasive tool with exceptional cutting performance and durability. Unlike resin or vitrified bonds, electroplated tools offer 100% diamond exposure, maximizing cutting efficiency. They are widely used in precision machining where conventional abrasives fail, such as processing tungsten carbide, sapphire, or advanced ceramics.

Structure and Working Principle

The product features a steel or alloy base coated with a 0.1-0.3mm thick metal layer holding diamond grit. During electroplating, nickel ions deposit around diamond crystals, mechanically locking them in place. When in use, the exposed diamond edges fracture microscopically, continuously revealing fresh cutting points. This self-sharpening property maintains consistent performance until the entire diamond layer is consumed, typically lasting 5-10x longer than conventional abrasives.

Key Features

1. Maximum hardness: Diamonds (the hardest known material) provide unparalleled wear resistance. 2. Cool cutting: The open structure minimizes heat buildup, reducing workpiece damage. 3. Customizable: Available in grit sizes from 60 to 2000+ for roughing to mirror finishes. Electroplated abrasives maintain form accuracy within 0.01mm, making them ideal for profile grinding applications. Their thin bond layer allows for intricate shapes impossible with multi-layer bonded wheels.

Application Areas

Primary industries include: - Tool manufacturing: Sharpening carbide end mills and inserts - Optics: Lens edging and beveling - Electronics: Wafer dicing and ceramic substrate processing Niche uses encompass dental bur production, gemstone cutting, and aerospace component finishing. Specific tools include grinding wheels, dressing sticks, and flexible abrasive belts for complex geometries.

Maintenance and Precautions

Proper storage involves keeping tools in original packaging to prevent diamond damage. Avoid stacking unprotected abrasive surfaces. During operation, use water-soluble coolants (not oil-based) at 3-5 bar pressure. Monitor for glazing—if occurring, dress with a silicon carbide stick. Never exceed recommended RPM (typically 25-35 m/s peripheral speed).

B2B Procurement Guide

Technical specifications to verify: 1. Diamond concentration (typically 25-200%) 2. Grit size (coarse: 60-120; fine: 400-2000) 3. Substrate material (nickel for general use; cobalt for high-temp applications) Leading manufacturers include Saint-Gobain, Tyrolit, and Asahi Diamond. MOQs usually start at 10 pieces for standard items, with 4-6 week lead times for custom geometries. Sample testing is recommended before bulk orders.