The core components of a diamond grinding disc include a working layer (diamond layer), a transition layer (non diamond layer), and a substrate.
Working layer (diamond layer):
Composition: Composed of diamond particles and binders (metal powder, resin powder, ceramic or electroplated metal).
Function: It directly contacts the workpiece and achieves grinding, grinding or polishing through the cutting action of diamond particles, which is the core functional layer of the grinding disc.
Characteristics: Diamond's high hardness, high compressive strength, and high wear resistance enable the working layer to process hard and brittle materials (such as hard alloys, optical glass, ceramics, semiconductor materials, etc.) while maintaining low roughness and high precision.
Transition layer (non diamond layer):
Composition: Does not contain diamond particles, usually composed of binder material.
Function: Connect the working layer with the substrate, buffer the stress generated during the grinding process, prevent the working layer from falling off or cracking, and enhance the overall structural stability of the grinding disc.
Characteristics: The material selection for the transition layer needs to be compatible with both the working layer and the substrate to ensure good bonding strength and durability.
Matrix:
Composition: Usually made of high-quality steel plates, aluminum alloys, or other high-strength materials.
Function: Provide stable support for the grinding disc, ensuring its stability during high-speed rotation; As an installation interface, it is also connected to the spindle of the grinding machine.
Characteristics: The substrate needs to have sufficient strength and rigidity to withstand the loads and vibrations during the grinding process, while maintaining lightweight to reduce energy consumption.