Glass disc cutting method

Abstract

The present invention provides a glass disc cutting method. The method is characterized in that flat glass is bonded to a liner of whom the strength and material is similar to those of the plat glass by an adhesive before cutting. For example, when flat glass is used as the liner, upper glass and lower glass is bonded together, so that during a process of the upper layer glass being cut by a lip of a hollow drill, when the upper glass left only about 1 mm, as the strength of the lower layer glass is the same as that of the upper layer glass, during the drill lip pushing, downward bending deformation of the glass under the drill lip is effectively limited due to the support of the lower glass, thereby avoiding crack edges.

Description

technical field [0001] The invention belongs to the field of glass processing, in particular to a method for cutting glass wafers. technical background [0002] Glass discs less than one square centimeter are cut by laser, and the cut glass discs are neat and beautiful, but the efficiency is low and the cost is high. It can also be drilled with a diamond glass drill bit, but the edge of the lower layer is easy to fry. The reason for the edge explosion is that the downward movement of the drill bit has a downward pressure. When the thickness of the glass under the drill bit is less than 1mm, it cannot withstand the pressure under the drill bit. In addition, the high-speed rotating drill bit has a dynamic impact on the glass, and Glass is a particularly brittle material, and it is difficult to avoid fried edges. The traditional solution is to install a hollow drill bit on the top and bottom respectively, and the two drill bits are drilled relative to each other. The lower dr...

AI Technical Summary

Problems solved by technology

Although this can solve the problem of edge blasting to a certain extent, it is very difficult to keep the upper and lower drill bits coaxial

There will be an obvious drill mark on the side wall of the glass disc drilled by this method, which is caused by the different axes of the upper and lower drill bits.

Images