Abrégé

The invention relates to a method for shaping a flat glass piece into a glass component (12) comprising a base surface (14) and given a number of protrusions (16), which protrusions are planned to form surface structure elements that can be identified by a user by touch. The aim of the invention is for said method to particularly simply and reliably ensure a particularly high mechanical load capacity of the glass component (12) or shaped part even in the case of comparatively complexly configured structure elements. This aim is achieved, according the invention, in that the flat glass piece is laid, in a shaping tool, onto a number of shaping punches (22) corresponding to the planned protrusions (16) and is subsequently heated for material softening such that the glass material assumes the contour of the bottom (20) of the shaping tool (10) in order to form the base surface (14) between the shaping punches (22).

Classes IPC  ?

• C03B 23/023 - Finition des feuilles de verre par bombage
• C03B 23/025 - Finition des feuilles de verre par bombage par gravité
• C03B 23/035 - Finition des feuilles de verre par bombage en utilisant un coussin gazeux ou par variation de la pression du gaz, p. ex. par le vide
• C03B 40/02 - Prévention de l'adhérence entre le verre et le verre ou entre le verre et les moyens utilisés pour le former par lubrificationUtilisation de substances spécifiées comme compositions de démoulage ou comme lubrifiants

Abrégé

The invention relates to a planar glass element (12) having two opposite side faces (22) which are connected to one another laterally by a number of contact faces (20). Adjacent filament-like impairments (24) forming elongate indentations are provided in the or each edge face (20), and the/each edge face (20) is arranged at an incline to the side faces (22). Said planar glass element is particularly well suited for use in a large number of possible applications. In accordance with the invention each edge face (20), in its region provided with the filament-like impairments (24), has a surface roughness with a mean roughness value of at least 0.3 µm, and preferably of at most 2 µm, particularly advantageously of approximately 1 µm.

Classes IPC  ?

• C03B 33/02 - Découpe ou fendage des feuilles de verreDispositifs ou machines à cet effet
• B23K 26/55 - Travail par transmission du faisceau laser à travers ou dans la pièce à travailler pour créer des vides dans la pièce à travailler, p. ex. pour former des passages ou des configurations de flux