Lapping flat a raised patterned square of glass and polish to full transparency - Case Study

Stage 1 (Lap) Equipment used:

  • Kemet 24” lapping/polishing machine
  • Cast Iron lapping plate
  • Kemet Flatness gauge
  • Kemox 0-800s
  • CO-42 cleaning fluid
  • 24” dycem faced pressure weight

Stage 2 (Polish) Equipment used:

  • Kemet 24” lapping/polishing machine
  • PSU-M polishing cloth
  • Kemox 970BB
  • CO-42 cleaning fluid
  • 24” dycem faced pressure weight
Process Breakdown
Stage Media Plate/Cloth
1 (Lap) Kemox 0-800s Cast Iron
2 (Polish) Kemox 970BB PSU-M

Process for Lapping and Polishing Glass

Stage 1: One square of glass was placed inside the centre of a control ring on a flat cast Iron lapping plate, a dycem faced weight was placed on top, this is for quick fixturing in a production level, you would use a profiled out work holder for convenience and protection of parts. The machine was then cycled using Kemox 0-800s till the patterned face had cleaned up, this took 25 minutes. The glass was then turned over, the same methods were used but with a clean up time of 10 minutes. Glass was then cleaned off with Co42 cleaning fluid.

Stage 2: The cleaned glass was then placed into a plastic faced control ring and a dycem back weight was placed on top. The machine was cycled for 15 minutes per side with a PSU-M polishing cloth using Kemox 970BB. Glass was then cleaned with Co42 cleaning fluid.

Before Lapping Glass

before lapping polishing glass

After Polishing Glass

after lapping polishing glass

Cookie Notice

This site uses cookies to ensure the best experience. By continuing to use this website, you agree to their use. Learn more about our privacy policy.