Patent · US Active

Methods and apparatuses for controlling cutting processes

US11491583B2 · kind B2 · utility

0Cited by

13References

19Claims

0Family size

Assignee

TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

Oliver Bocksrocker · Sachsenheim, DE
Stefanie Epple · Eßlingen, DE
Tim Hesse · Ditzingen, DE

Key dates

Filing date	Nov 13, 2018
Grant date	Nov 8, 2022
Priority date	—
Expiry date	May 31, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K26/0344
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The disclosure relates to methods and apparatuses for controlling a cutting process in which a workpiece is cut by a high-energy beam. A process light signal is detected emanating from an interaction region of the high-energy beam with the workpiece in a first wavelength range (Δλ1), in which at least one metallic constituent (Fe, Cr) of the workpiece has at least one emission line, and in a second wavelength range (Δλ2), which differs from the first wavelength range, in which continuum radiation of the workpiece without emission lines is detectable. Vaporization of the at least one metallic constituent (Fe, Cr) is monitored on the basis of an intensity of the process light signal detected in the first wavelength range (Δλ1) and on the basis of an intensity of the process light signal detected in the second wavelength range (Δλ2).

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