Abstract
Powder feeding is one of the single most important
factors which defines the qualitative outcome of the
cladding process. If the powder feeding or a powder cloud
suffers from any form of interference, it will directly
affect the quality of the clad bead. This study thus
focuses on the effect of the powder feeding angle and the
flow rate of the powder carrying gas on powder cloud
behavior under the scanned laser beam during the laser
cladding process. In this study, powder feeding angles
from 40 to 70 degrees were tested with powder feeding gas
flow rates of 3 and 6 l/min and with laser scanning
frequencies ranging from 80 to 150 Hz. Additive material
used was 316L, and the substrate material was low alloyed
steel. Powder cloud behavior was simultaneously monitored
in situ with a highspeed camera and spectrometer. The
results showed that the stability of the powder cloud was
highly dependent on the tested parameters. Also, a direct
correlation between the vaporization of the powder cloud
and the increase of dilution was noticed
| Original language | English |
|---|---|
| Title of host publication | ICALEO® 2013 |
| Subtitle of host publication | 32nd International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing |
| Place of Publication | Miami |
| Publisher | Laser Institute of America |
| Pages | 590-599 |
| ISBN (Print) | 978-0-912035-98-7 |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A4 Article in a conference publication |
| Event | 32nd International Congress on Applications of Lasers and Electro-Optics, ICALEO 2013 - Miami, United States Duration: 6 Oct 2013 → 10 Oct 2013 Conference number: 32 |
Conference
| Conference | 32nd International Congress on Applications of Lasers and Electro-Optics, ICALEO 2013 |
|---|---|
| Country/Territory | United States |
| City | Miami |
| Period | 6/10/13 → 10/10/13 |
