Simulation on the Effects of Misaligned Coupling on the Output Intensity Distribution in Water-Jet Guided Laser

Li, Chun Qi; Li, Yan; Wang, Yang; Tang, Jing

doi:10.4028/www.scientific.net/amr.211-212.400

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…In this paper the laser spot pattern was observed to analyze the coupling status. According to Li Chunqi's research, it was found that the laser energy intensity distribution in the water jet varied while the coupling status changed and different patterns of the spot image could be observed by simulation [8]. However, the spot pattern couldn't be observed directly without any optical magnifying system.…”

Section: Methodsmentioning

confidence: 99%

A Simple Optical Coupling Method for Water-Jet Guided Laser Machining System

Zhang

et al. 2014

AMM

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In this paper a simple optical coupling method for water-jet guided laser machining system is introduced and its characteristics are studied. By the introduced method the output spot pattern behind the water-jet was observed instead of the laser focus. In order to acquire the pattern a piece of glass was used to block the water-jet but let the laser through, and a light screen was placed behind the glass in a certain distance to display the pattern image. Since the image scale could be adjusted by changing the distance between the glass and the light screen, the CCD magnifying system was no longer needed. It is found that the pattern varied while the coupling condition changed. Only in small chance the pattern was a tiny spot but more commonly it was in a ring-like shape which could be easily recognized. So such ring-like patterns could be signals for optical coupling guidance. Furthermore a series of study to analyze the correlation between the pattern shape and coupling parameters was carried out by simulation with the help of Zemax.

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Section: Methodsmentioning

confidence: 99%

A Simple Optical Coupling Method for Water-Jet Guided Laser Machining System

Zhang

et al. 2014

AMM

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“…In order to avoid misalignment coupling between laser beam and water jet, an adjusting unit was designed to connect laser head and coupling unit for modifying the distance of the two axes of water jet and laser beam and their deflection angle, in addition, the depth of focus of the laser beam coupled into the nozzle can be changed by means of moving focusing lens±Z direction. Thus the relative position between laser beam and water-jet can be easily changed for various procedure testing [7].…”

Section: Experimental Setup and Proceduresmentioning

confidence: 99%

A Research on Surface Morphology of Cutting of Titanium Sheet with Water-Jet Guided Laser and Conventional Laser

Wang

2011

AMM

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Titanium is a class of material difficult to common machine. Laser processing is a feasible method for machining of titanium. This paper presents cutting investigation of industry pure titanium sheet with conventional laser and water-jet guided laser, and analyses their processing features by means of the surface morphology of kerf obtained from Scanning Electron Microscope. The result shows that the machining quality and cleanliness of water-jet guided laser processing is much better than conventional laser processing. The impact and cool effects of the high-speeds water jet are more effective to trim the cut surface and remove molten waster.

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