公开(公告)号：US20190381626A1

公开(公告)日：2019-12-19

申请号：US16480552

申请日：2018-01-24

Applicant: CORNING INCORPORATED

Inventor： Chwan-Yang Chang ,  Ting-Wei Chu ,  Chi-Cheng Hsu ,  Cheng-Feng Huang ,  Shai Negev Shafrir ,  Yuyin Tang

IPC: B24B9/10 ,  B24B7/24

Abstract: A method for finishing an edge of a glass sheet comprises grinding the edge of the glass sheet with a grinding wheel. The glass sheet includes a first major surface, a second major surface substantially parallel to the first major surface, and the edge connecting the first and second major surfaces. The grinding produces a central edge portion and two chamfered edge portions connecting the central edge portion with the first and second major surfaces, respectively. The method further comprises polishing the central edge portion with at least one cup wheel rotated about a first axis substantially parallel with the first and second major surfaces of the glass sheet to polish the central edge portion, wherein an abrasive layer of the cup wheel comprises at least one of ferric oxide (Fe2O3), silicon carbide (SiC), and ceric oxide (CeO2).