About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Laser Calibration for Powder Bed Fusion Additive Manufacturing Process |
Author(s) |
Ho Yeung, Steven Grantham |
On-Site Speaker (Planned) |
Ho Yeung |
Abstract Scope |
Laser speed, position, spot size, and response time are critical for the laser powder bed fusion process. This study demonstrates an effective approach for laser calibration by using two low-cost CMOS cameras. The cameras are set up to look up directly at the attenuated laser beam. The laser speed and position are calibrated by commanding the laser to travel through known distances between the two cameras. The laser spot sizes are calibrated by laser beam images taken by the camera at different heights and locations on the build plane. The laser response time is compared by looking at the laser command input, laser power monitoring output, and camera images. The results are compared with traditional calibration methods. Build experiments are also conducted and show the system can be used effectively to conduct a pre-build check/calibration. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |