Abstract
The influence of the optical system on the laser cladding process is studied, in particular with respect to the burn-in shape: the penetration of the meltpool into the substrate. The beam caustic and intensity profiles for the commonly used out-of-focus laser clad operation are presented and discussed. To avoid the disadvantages of the out-of-focus operation, a novel telezoom optical system is developed, which allows in-focus operation with a sufficiently large focus with a uniform intensity distribution and a spot diameter ranging from 3 up to over 6 mm. Different typical burn-in shapes are indicated, as they can be found in cross sections of experimental clads. The influence of the intensity distribution on the occurring burn-in shapes is discussed, as well as other phenomena that can play a role, such as flow recirculation cells in the meltpool.
| Original language | English |
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| Title of host publication | Proceedings of the third International WLT-conference on Lasers in Manufacturing, 14-17 June 2005, Munich, Germany |
| Editors | E. Beyer, F. Dausinger, A. Ostendorf, A. Otto |
| Place of Publication | Stuttgart, Germany |
| Publisher | AT-Fachverlag GmbH Stuttgart |
| Pages | 323-327 |
| Number of pages | 5 |
| ISBN (Print) | 3-00-016402-2 |
| Publication status | Published - 14 Jun 2005 |
| Event | 3rd International WLT-Conference on Laser in Manufacturing, LIM 2005 - Stuttgart, Germany Duration: 13 Jun 2005 → 16 Jun 2005 Conference number: 3 |
Conference
| Conference | 3rd International WLT-Conference on Laser in Manufacturing, LIM 2005 |
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| Abbreviated title | LIM |
| Country/Territory | Germany |
| City | Stuttgart |
| Period | 13/06/05 → 16/06/05 |
