07/04/2025
Vitrified bond diamond grinding wheel is a high-performance grinding tool that combines the superhard properties of diamond abrasives and the excellent performance of vitrified bonds. It is widely used in the precision machining of hard and brittle materials (such as cemented carbide, ceramics, glass, semiconductors, etc.). The following are its key features and application analysis:
1. Core composition
Diamond abrasive: artificially synthesized diamond particles with extremely high hardness (Mohs hardness 10), suitable for machining high-hardness materials.
Vitrified bond: composed of glass phase (such as silicate, aluminate) and crystalline phase, solidified by high-temperature sintering, with high rigidity, heat resistance and chemical stability.
2. Significant advantages
High grinding efficiency: diamond abrasives are sharp and wear-resistant, suitable for efficient removal of hard materials.
High processing accuracy: vitrified bonds have a dense structure and good grinding wheel shape retention, suitable for precision grinding (such as nano-scale surface roughness).
High temperature resistance: vitrified bonds can still maintain strength at high temperatures and reduce thermal deformation.
Self-sharpening: After the abrasive grains are passivated, they are easy to fall off, exposing new abrasive grains and maintaining cutting performance.
Chemical stability: Corrosion-resistant, suitable for wet grinding or coolant environment.
3. Typical application scenarios
Hard alloy: sharpening and finishing of tools and molds.
Optical glass/ceramics: high-precision forming grinding of lenses, display screens, etc.
Semiconductor materials: slicing and grinding of silicon wafers and silicon carbide wafers.
Superhard composite materials: such as CBN tools and ceramic bearing processing.
Vitrified bond diamond grinding wheels are made of diamond as the main material and ceramic&glass as the binder through processes such as mixing, pressing, sintering and dressing.
