The melt flow velocity and the local surface angles of the cutting front during laser
fusion cutting of 10 mm AISI 304 were determined for a laser power of 8 kW and a feed rate of
2 m/min. The cut front was recorded with a polarization goniometer, which uses the polarization
of the process emission to determine the local surface angles, allowing to calculate the orientation
of the normal vector of the surface. The records in this work were carried out with a frame rate
of 75 kHz and a spatial resolution of about 30 μm. This allowed to identify big and small
structures moving down the cutting front and to determine their velocities. The approximate
velocity of the small structures was 9.1 m/s and for the big structures approx. 2.5 m/s. The
information of a usual high-speed video was compared with the additionally obtained geometry
information.
%0 Journal Article
%1 sawannia.2021.determination
%A Sawannia, Michael
%A Berger, Peter
%A Weber, Rudolf
%A Graf, Thomas
%D 2021
%J IOP Publishing
%K cutting goniometer laser myown peer processmonitoring
%N 012013
%R 10.1088/1757-899X/1135/1/012013
%T Determination of the geometry of laser-cutting fronts with high spatial and temporal resolution
%U https://iopscience.iop.org/article/10.1088/1757-899X/1135/1/012013/pdf
%V 1135
%X The melt flow velocity and the local surface angles of the cutting front during laser
fusion cutting of 10 mm AISI 304 were determined for a laser power of 8 kW and a feed rate of
2 m/min. The cut front was recorded with a polarization goniometer, which uses the polarization
of the process emission to determine the local surface angles, allowing to calculate the orientation
of the normal vector of the surface. The records in this work were carried out with a frame rate
of 75 kHz and a spatial resolution of about 30 μm. This allowed to identify big and small
structures moving down the cutting front and to determine their velocities. The approximate
velocity of the small structures was 9.1 m/s and for the big structures approx. 2.5 m/s. The
information of a usual high-speed video was compared with the additionally obtained geometry
information.
@article{sawannia.2021.determination,
abstract = {The melt flow velocity and the local surface angles of the cutting front during laser
fusion cutting of 10 mm AISI 304 were determined for a laser power of 8 kW and a feed rate of
2 m/min. The cut front was recorded with a polarization goniometer, which uses the polarization
of the process emission to determine the local surface angles, allowing to calculate the orientation
of the normal vector of the surface. The records in this work were carried out with a frame rate
of 75 kHz and a spatial resolution of about 30 μm. This allowed to identify big and small
structures moving down the cutting front and to determine their velocities. The approximate
velocity of the small structures was 9.1 m/s and for the big structures approx. 2.5 m/s. The
information of a usual high-speed video was compared with the additionally obtained geometry
information.},
added-at = {2022-03-18T12:23:55.000+0100},
author = {Sawannia, Michael and Berger, Peter and Weber, Rudolf and Graf, Thomas},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/25148c8d036fd6abd383621049b5ffcd1/michaelsawannia},
description = {18th Nordic Laser Materials Processing Conference (18th NOLAMP)
18-20.01.2022, Luleå
},
doi = {10.1088/1757-899X/1135/1/012013},
interhash = {06295bcbdb1119752ae5425845bfa169},
intrahash = {5148c8d036fd6abd383621049b5ffcd1},
journal = {IOP Publishing},
keywords = {cutting goniometer laser myown peer processmonitoring},
language = {english},
month = {december},
number = 012013,
timestamp = {2022-03-18T12:18:53.000+0100},
title = {Determination of the geometry of laser-cutting fronts with high spatial and temporal resolution},
url = {https://iopscience.iop.org/article/10.1088/1757-899X/1135/1/012013/pdf},
volume = 1135,
year = 2021
}
