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Process control systems in laser materials processing

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Hans Kurt Tönshoff
  • Ludger Overmeyer

Externe Organisationen

  • Laser Zentrum Hannover e.V. (LZH)

Details

OriginalspracheEnglisch
Seiten (von - bis)1439-1447
Seitenumfang9
FachzeitschriftOptical and Quantum Electronics
Jahrgang27
Ausgabenummer12
PublikationsstatusVeröffentlicht - Dez. 1995
Extern publiziertJa

Abstract

To obtain on-line information about the cutting and welding processes, optical sensors are integrated into the working head of a high-power CO2 laser machining system. In order to detect the dynamic light or plasma intensity fluctuation during cutting and welding, these sensors provide the real-time signal of the metal vapour and plasma flame intensity in the wavelength range 200-1100nm. Simultaneously, the real-time intensity of the laser power is measured with a pyroelectric sensor. The aim is to analyse the transfer function of each process. With the knowledge of the transformation characteristics of the specific process, a closed-loop control is set up. Distinguishing between CW and pulsed processes, different control algorithms have been developed and tested. A control system based on microcontroller hardware and its theoretical background for failure detection are described.

ASJC Scopus Sachgebiete

Zitieren

Process control systems in laser materials processing. / Tönshoff, Hans Kurt; Overmeyer, Ludger.
in: Optical and Quantum Electronics, Jahrgang 27, Nr. 12, 12.1995, S. 1439-1447.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Tönshoff HK, Overmeyer L. Process control systems in laser materials processing. Optical and Quantum Electronics. 1995 Dez;27(12):1439-1447. doi: 10.1007/BF00326495
Tönshoff, Hans Kurt ; Overmeyer, Ludger. / Process control systems in laser materials processing. in: Optical and Quantum Electronics. 1995 ; Jahrgang 27, Nr. 12. S. 1439-1447.
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