Experiment on surface integrity of soda-lime glass with single abrasive particle variable cutting depth scratching

Abstract

Due to the high hardness, the high brittleness and other characteristics, the hard and brittle materials represented by glass were prone to damage such as pits, brittle breakage and surface/subsurface cracks during processing, which seriously affected the performance and surface integrity. The effect of velocity variation on the crack formation and propagation and surface integrity of sodium-calcium glass during single abrasive grinding was studied. The results show that the single grain variable cutting depth scratching experiment can realize three stages of scratching, ploughing and cutting in the grinding process, and with the increase of scratching speed, the critical depth of brittle-plastic transformation of sodium-calcium glass increases, and the scratch morphology and scratch edge smoothness increase.

Keywords

• soda-lime glass
• single-abrasive scratching
• variable cutting depth scratch
• surface integrity