Abstract
| Original language | English |
|---|---|
| Title of host publication | ICALEO 2004 |
| Subtitle of host publication | 23rd International Congress on Laser Materials Processing and Laser Microfabrication, San Francisco, CA, USA, October 4–7, 2004 |
| Place of Publication | San Fransisco, CA, USA |
| Publisher | Laser Institute of America |
| Pages | 11-17 |
| Number of pages | 7 |
| ISBN (Print) | 0-912035-77-3 |
| DOIs | |
| Publication status | Published - 4 Oct 2004 |
| Event | 23rd International Congress on Applications of Lasers & Electro-Optics, ICALEO 2004 - San Fransisco, United States Duration: 4 Oct 2004 → 7 Oct 2004 Conference number: 23 |
Conference
| Conference | 23rd International Congress on Applications of Lasers & Electro-Optics, ICALEO 2004 |
|---|---|
| Abbreviated title | ICALEO |
| Country | United States |
| City | San Fransisco |
| Period | 4/10/04 → 7/10/04 |
Fingerprint
Keywords
- METIS-218695
Cite this
}
Study of the optical emissions during Nd:YAG laser welding of AA5182. / Aalderink, B.J.; Aarts, R.G.K.M.; Jonker, J.B.; Meijer, J.
ICALEO 2004: 23rd International Congress on Laser Materials Processing and Laser Microfabrication, San Francisco, CA, USA, October 4–7, 2004. San Fransisco, CA, USA : Laser Institute of America, 2004. p. 11-17.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic
TY - GEN
T1 - Study of the optical emissions during Nd:YAG laser welding of AA5182
AU - Aalderink, B.J.
AU - Aarts, R.G.K.M.
AU - Jonker, J.B.
AU - Meijer, J.
PY - 2004/10/4
Y1 - 2004/10/4
N2 - In this paper broad band spectroscopic measurements of the CW Nd:YAG laser welding process of AA5182-H111 are discussed. This specific alloy is e.g. used for the production of Tailor Welded Blanks in the automotive industry. For many optical sensor applications it is important to know the spectral content of the welding process, as such information is crucial for the selection of optical filters. The measurements were conducted in the range of 600 to 1600 nm. Measurements were conducted in two different configurations. In the first configuration the angle between the workpiece and the optical axis of the optical system used for the measurements was 15°. In the second configuration this angle was 75°. In both configurations 16 measurements were taken and the results were averaged. In this way the influence of the fluctuating overall intensity of the weld plume was reduced. However these fluctuations still remain the main source of noise in the measurement results. It was found that the region between 1000 and 1600 nm was dominated by temperature radiation. In the region of 700 to 1000 nm a broad band peak was seen that is quite distinct from temperature radiation. There were many peaks found in the measured spectra that correspond with wavelengths at which atomic emission lines are present of Ar, Al, Mg, N and O atoms. However no vibrational or rotational emission lines of AlO, MgO, AlH, N2 or O2 could be detected.
AB - In this paper broad band spectroscopic measurements of the CW Nd:YAG laser welding process of AA5182-H111 are discussed. This specific alloy is e.g. used for the production of Tailor Welded Blanks in the automotive industry. For many optical sensor applications it is important to know the spectral content of the welding process, as such information is crucial for the selection of optical filters. The measurements were conducted in the range of 600 to 1600 nm. Measurements were conducted in two different configurations. In the first configuration the angle between the workpiece and the optical axis of the optical system used for the measurements was 15°. In the second configuration this angle was 75°. In both configurations 16 measurements were taken and the results were averaged. In this way the influence of the fluctuating overall intensity of the weld plume was reduced. However these fluctuations still remain the main source of noise in the measurement results. It was found that the region between 1000 and 1600 nm was dominated by temperature radiation. In the region of 700 to 1000 nm a broad band peak was seen that is quite distinct from temperature radiation. There were many peaks found in the measured spectra that correspond with wavelengths at which atomic emission lines are present of Ar, Al, Mg, N and O atoms. However no vibrational or rotational emission lines of AlO, MgO, AlH, N2 or O2 could be detected.
KW - METIS-218695
U2 - 10.2351/1.5060180
DO - 10.2351/1.5060180
M3 - Conference contribution
SN - 0-912035-77-3
SP - 11
EP - 17
BT - ICALEO 2004
PB - Laser Institute of America
CY - San Fransisco, CA, USA
ER -