Process monitoring based on plasma emission for power-modulated glass welding with bursts of subpicosecond laser pulses

Hecker Sebastian; Scharun Michael; Graf Thomas

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Process monitoring based on plasma emission for power-modulated glass welding with bursts of subpicosecond laser pulses

机译：基于等离子体排放的电压调制玻璃焊接的过程监控，具有脉冲型激光脉冲的爆破

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Defects and process irregularities influence the bonding strength and thus the stability and lifetime of welded glass components. The present paper proposes to monitor the laser-based glass welding process by means of a single photodetector that records the radiation emitted from the laser-induced plasma. It is shown that the plasma emission provides information about irregularities of the welded seam height, gap bridging, process interruptions, and the position of the seam. The method is suitable for different welded glass types. (C) 2021 Optical Society of America

机译：缺陷和工艺不规则性会影响粘接强度，从而影响焊接玻璃组件的稳定性和寿命。本文提出用一个记录激光等离子体辐射的光电探测器来监测激光玻璃焊接过程。结果表明，等离子体发射提供了有关焊缝高度不规则、间隙桥接、过程中断和焊缝位置的信息。该方法适用于不同类型的焊接玻璃。（2021）美国光学学会

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《Applied optics》 |2021年第12期|共9页
作者
Hecker Sebastian; Scharun Michael; Graf Thomas;
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Univ Stuttgart Grad Sch Excellence Adv Mfg Engn GSaME Nobelstr 12 D-70569 Stuttgart Germany;

TRUMPF Laser GmbH Aichhalder Str 39 D-787 Schramberg Germany;

Univ Stuttgart Inst Strahlwerkzeuge WSW Pfaffenwaldring 43 D-70569 Stuttgart Germany;

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4. Process regimes during welding of glass by femtosecond laser pulse bursts [J] . Hecker Sebastian, Blothe Markus, Grossmann Daniel, Applied optics . 2020,第22期

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Process monitoring based on plasma emission for power-modulated glass welding with bursts of subpicosecond laser pulses

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