| Issue |
MATEC Web Conf.
Volume 388, 2023
2023 RAPDASA-RobMech-PRASA-AMI Conference Advanced Manufacturing Beyond Borders - The 24th Annual International RAPDASA Conference joined by RobMech, PRASA and AMI, hosted by CSIR and CUT
|
|
|---|---|---|
| Article Number | 05007 | |
| Number of page(s) | 12 | |
| Section | Product Design and Development | |
| DOI | https://doi.org/10.1051/matecconf/202338805007 | |
| Published online | 15 December 2023 | |
The effects of laser wire directed energy deposition processing parameters on the properties of 309L stainless steel
1 School of Chemical and Metallurgical Engineering, University of the Witwatersrand, South Africa
2 DSI-NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg, South Africa
3 Future Production: Manufacturing, Council for Scientific Industrial Research, South Africa
4 HH Industries, Stellenbosch, South Africa
* Corresponding author: 2387628@students.wits.ac.za
Laser directed energy deposition technology using 309L welding wire feedstock was investigated in this research work. The aim of the study was to determine the effect of laser power and scanning speed on the microstructure and hardness of the 309L austenitic stainless steel. The travel speed and the laser power were varied from 350 mm/min to 650 mm/min, and from 700W to 1100W, respectively. The general microstructure of the test cubes was that of ferrite dendrites in austenitic matrix. The test samples fabricated at laser power between 700W and 900W showed lack of fusion. However, samples that were manufactured at laser power between 1000W and 1100W were of good quality and did not show any defects. The micro hardness ranged between 188HV0.1 to 211HV0.1.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.