Methods for separating glass articles from strengthened glass substrate sheets
Methods for separating glass articles from strengthened glass substrate sheets and strengthened glass substrate sheets are provided. In one embodiment, a method includes forming at least one groove on at least one surface of the glass substrate sheet and strengthening the glass substrate sheet by a strengthening process. The groove defines the glass article and partially extends through a thickness of the glass substrate sheet. The method further includes generating an initiation defect on the groove at an initiation location to cause a through crack to self-propagate through the glass substrate sheet along the groove, thereby separating the glass article from the glass substrate sheet. In another embodiment, a strengthened glass substrate sheet includes a strengthened glass having a glass article groove and an initiation groove on a surface, the glass article groove defining a glass article.
Corning Incorporated
C C B C Y B C B C B C B B
C03B C03B B23K C03B Y10T B23K C03B B28D C03C B32B C03B B23K B32B
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Xinghua Gregory Scott Daniel Duane
Li Glaesemann Strong