Keywords: Granite machining, diamond grinding, vibration aging, automated fabrication
The production of granite components involves sophisticated multi-stage processes:
- Block Selection: High-purity granite blocks (SiO₂ >70%) are sourced using ultrasonic testing to detect internal flaws.
- Precision Shaping: Computer-controlled diamond wire saws cut blanks to ±0.5mm tolerance.
- Grinding & Lapping: Automated systems employ diamond wheels and nanometer-grade slurries to achieve surface finishes below Ra 0.2μm.
- Vibration Aging: Post-processing resonant frequency vibration eliminates residual stresses, improving long-term stability by 40%.
- Quality Control: Laser interferometers and CMMs verify flatness across 21 points, ensuring compliance with ISO 8512-2.
Facilities like Botou Jingda utilize robotic handling and AI-driven inspection, reducing human error to <0.1%. Automated lines now achieve 99% first-pass yield for Grade 00 components.
