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首页> 外文会议>Pacific international conference on applications of lasers and optics >WELDING PERFORMANCE OF A 2KW CONTINUOUS WAVE SUPERMODULATED ND: YAG LASER- INCREASED WELD SPEED, WELD PENETRATION AND REDUCED POROSITY WITH SUPERMODULATED OUTPUT POWER
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WELDING PERFORMANCE OF A 2KW CONTINUOUS WAVE SUPERMODULATED ND: YAG LASER- INCREASED WELD SPEED, WELD PENETRATION AND REDUCED POROSITY WITH SUPERMODULATED OUTPUT POWER

机译：2KW连续波超常规ND：YAG激光焊接速度，焊接渗透和降低孔隙度，焊接性能，焊接渗透和具有超常规输出功率的孔隙度

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摘要

The development of disk and fiber laser with a high beam quality in the multikilowatt range has led to new industrial processes and enhancement of the standard processes in terms of processing speeds, welding depth etc. However a laser with high average power and high beam quality is not always the answer because: o Laser with a high average power and beam quality is more expensive o With high average power the processing speeds can be increased but there is no gain in efficiency meaning that costs and/or distortion can be greatly increased. o A better solution would be to get more from the laser's output-a more efficient beammaterial interaction. At GSI Group, we have undertaken a number of initiatives to raise Nd: YAG laser power and its processing performances. Work has centred on high average power (400W-2000W) continuous wave (CW) systems. Continuous wave (CW) Nd: YAG lasers with beam quality of 25mm-mrad or better that can also SuperModulateTM to peak powers of up to 2 times of their average power ratings have been shown to improve material processing. This paper documents the basics of generating SuperModulated beams but emphasizes the process improvements in welding of standard alloys.
机译：Multikilowatt范围内具有高光束质量的磁盘和光纤激光器的开发导致了新的工业过程和在处理速度，焊接深度等方面的标准过程的增强。然而，具有高平均功率和高光束质量的激光并不总是答案，因为：具有高平均功率和光束质量的激光更昂贵的o具有高平均功率的o，可以增加处理速度，但没有提高效率，这意味着可以大大增加成本和/或失真。 o更好的解决方案是从激光的输出 - 更有效的波束材料交互中获得更多。在GSI集团，我们承担了一些筹集ND：YAG激光功率及其加工表演的举措。工作以高平均电源（400W-2000W）连续波（CW）系统为中心。连续波（CW）Nd：带光束质量的yag激光器25mm-mrad或者更好的是，也可以显示出高达2倍的平均电力额定值的峰值功率的SupermodulateTm，以改善材料加工。本文记录了产生超常规光束的基础知识，但强调标准合金焊接的过程改进。

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