Patent · US Active

Ultrashort pulse laser butt welding

US12240056B2 · kind B2 · utility

0Cited by

6References

21Claims

0Family size

Assignee

TRUMPF LASER GMBH · DE

Inventors

Dominik Bauer · Germering, DE
Helge Höck · Schramberg, DE
Michael Scharun · Schramberg, DE
Manuel Schindler · Empfingen, DE

Key dates

Filing date	May 26, 2021
Grant date	Mar 4, 2025
Priority date	—
Expiry date	Apr 24, 2043

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/54
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The present disclosure provides methods, devices, and systems for the butt welding of two, e.g., planar, workpieces composed of glass, e.g., quartz glass, by a pulsed laser beam, e.g., an ultrashort pulse (“USP”) laser beam, which is directed into the workpiece material parallel to the joining surface of the two workpieces and which is focused into the workpiece material in the region of the joining surface to locally melt the two workpieces in the region of their joining surface, wherein the laser focus of the laser beam focused into the workpiece material is moved in or counter to the beam direction of the laser beam to produce in the region of the joining surface a weld seam extending along the beam direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.