Simulation and experimental investigation on energy distribution of water column in waterjet guided laser processing

2020 ◽  
Author(s):  
Guangyi Zhang ◽  
Yaowen Wu ◽  
Yang Chao ◽  
Tianrun Zhang ◽  
Ji Wang ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Energy Distribution ◽  
Water Column ◽  
Laser Processing

Oxygen Transfer Efficiency of the Aeration Process in Refinery Waste Water Treatment

2008 ◽  
Vol 59 (2) ◽  
pp. 220-225
Author(s):  
Miroslav Stanojevic ◽  
Aleksandar Jovovic1 ◽  
Dejan Radic ◽  
Milan Pavlovic
Keyword(s):  
Waste Water ◽  
Experimental Investigation ◽  
Water Column ◽  
Oxygen Transfer ◽  
Mass Concentration ◽  
Waste Water Treatment ◽  
Motor Oil ◽  
Refinery Waste Water ◽  
Oxygen Transfer Efficiency ◽  
Aeration Process

This paper presents the results of an experimental investigation of aeration of water with a corresponding mass concentration of waste motor oil depending on the height of the liquid column for varied flow of air introduced into the water. The aeration process for water column heights of 1 and 2 m were investigated. The purpose of investigations performed on an experimental installation was comparison of technical indicators of the aeration process depending on the height of the water column and air flow in order to achieve more efficient purification of waste water.

Accelerating laser processes with a smart two-dimensional polygon mirror scanner for ultra-fast beam deflection

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Florian Roessler ◽  
André Streek
Keyword(s):  
Energy Distribution ◽  
Real Time ◽  
Laser Processing ◽  
High Speed ◽  
Beam Deflection ◽  
Two Dimensional ◽  
Heat Accumulation ◽  
Field Programmable ◽  
Drill Holes ◽  
Average Laser

Abstract In laser processing, the possible throughput is directly scaling with the available average laser power. To avoid unwanted thermal damage due to high pulse energy or heat accumulation during MHz-repetition rates, energy distribution over the workpiece is required. Polygon mirror scanners enable high deflection speeds and thus, a proper energy distribution within a short processing time. The requirements of laser micro processing with up to 10 kW average laser powers and high scan speeds up to 1000 m/s result in a 30 mm aperture two-dimensional polygon mirror scanner with a patented low-distortion mirror configuration. In combination with a field programmable gate array-based real-time logic, position-true high-accuracy laser switching is enabled for 2D, 2.5D, or 3D laser processing capable to drill holes in multi-pass ablation or engraving. A special developed real-time shifter module within the high-speed logic allows, in combination with external axis, the material processing on the fly and hence, processing of workpieces much larger than the scan field.

Experimental investigation of energy distribution in continuous sinking EDM

2017 ◽  
Vol 19 ◽  
pp. 36-43 ◽  
Author(s):  
K. Oßwald ◽  
S. Schneider ◽  
L. Hensgen ◽  
A. Klink ◽  
F. Klocke
Keyword(s):  
Experimental Investigation ◽  
Energy Distribution
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