Overview of Mirror Finishing Technology for Flat Polishing Machines

1. Technical Overview

The mirror finishing technology of flat polishing machines integrates mechanical, optical, electronic, computer, and materials science, and is a key process for achieving high-precision surface treatment. It is widely used in the fields of electronic components, optical devices, and precision machinery manufacturing.

2. Core Processing Requirements  

Ultra-high precision: Some workpieces require nanometer-level processing accuracy and damage-free surfaces.  

Flatness maintenance: While removing surface micro-protrusions and damage layers, overall flatness must be maintained.  

Uniform polishing: The relative velocity at all points on the workpiece surface must remain constant to avoid local over-polishing or under-polishing.

3. Key Process Control Factors  

Workpiece-Polishing Disc Matching  

The workpiece is treated as a rigid body, while the polishing disc is an elastically deformable body; both must be in close contact.  

If the workpiece is too large or has excessive eccentricity, certain areas may fail to contact the polishing disc, affecting polishing uniformity.  

Grinding Path Optimization  

Material removal volume is directly related to grinding path length; precise control of path distribution is necessary to enhance consistency.

Computer-aided motion control is employed to ensure balanced polishing across all regions.

Parallelism Correction

If the initial parallelism of the workpiece exceeds specifications, it must first be corrected to within the allowable range; otherwise, it will affect the final mirror surface quality.

4. Technological Trends

Intelligent Control: Combining AI algorithms to optimize polishing paths and pressure, enhancing processing efficiency and precision.

New Polishing Media: Develop ultra-fine abrasives and low-damage polishing liquids to reduce subsurface defects.

Online Inspection: Integrate optical/laser measurement systems to monitor surface quality in real time and adjust parameters accordingly.

5. Conclusion

The core of mirror finishing technology for flat plate polishing machines lies in precise motion control and process optimization. Future developments will focus on intelligent control and high consistency to meet the demands of advanced functional ceramics, semiconductors, and other high-end manufacturing applications.