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  4. Verfahren und Vorrichtung zum handgefuehrten Bearbeiten von Werkstuecken mittels Bestrahlung, insbesondere mittels Laserstrahlung
 
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Patent
Title

Verfahren und Vorrichtung zum handgefuehrten Bearbeiten von Werkstuecken mittels Bestrahlung, insbesondere mittels Laserstrahlung

Other Title
Manually guided workpiece machining using laser radiation - monitoring characteristics of gas flow directed onto machining point for reducing laser radiation when seal with workpiece surface is broken.
Abstract
The machining method uses a radiation head (21) coupled to a laser radiation source and applied to the surface of the workpiece via a spacer (22) which has a gas feed and discharge line for directing a gas flow (10) onto the machining point (4). The pressure and/or flow characteristics of the gas flow are measured when the spacer is placed in sealed contact with the workpiece surface, with a subsequent variation in the measured values causing the radiation level to be reduced automatically. ADVANTAGE - Protects operator from laser radiation.
Inventor(s)
Barkhausen, W.
Buechter, E.
Schlueter, H.
Zefferer, H.
Wissenbach, Konrad  
Link to Espacenet
http://worldwide.espacenet.com/publicationDetails/biblio?DB=worldwide.espacenet.com&locale=en_EP&FT=D&CC=DE&NR=19615633A
Patent Number
1996-19615633
Publication Date
1997
Language
German
Fraunhofer-Institut für Lasertechnik ILT  
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