Patent · US Active

Piercing workpieces by a laser beam and an associated laser processing machine

US11045908B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

Martin Spiess · Gerlingen, DE
Dieter Hallasch · Ditzingen, DE
Daniel Knorreck · Stuttgart, DE
Markus Blaschka · Schenefeld, DE

Key dates

Filing date	Feb 24, 2017
Grant date	Jun 29, 2021
Priority date	—
Expiry date	Jun 18, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/04
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

This disclosure relates to methods and apparatuses for piercing workpieces at a piercing point using a laser beam, which exits from a laser processing nozzle with a process gas, whereby a bulge is formed on the workpiece surface around the piercing point during the piercing. A distance between the laser processing nozzle and the bulge is determined during the piercing and at least one piercing parameter is changed in dependence on the distance determined.

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