Improving surface quality using laser scanning and machining strategy combining powder bed fusion and machining processes
International Journal of Advanced Manufacturing Technology, ISSN: 1433-3015, Vol: 117, Issue: 11-12, Page: 3405-3413
2021
- 7Citations
- 15Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
This paper focuses on an unconventional laser powder bed fusion (LPBF) technique in which the LPBF and machining processes were executed alternately to fabricate higher quality parts compared to those obtained using subtractive machining processes. The additional machining process modified the stress distribution inside the built part, resulting in the deformation of the surface morphology in the final part. The phenomenon resulting in the combined LPBF and machining-process-based fabrication was investigated, and the influence of the process parameters on the formation of surplus part and the deformation of machined surface was evaluated. In addition, a laser scanning and machining strategy were formulated to improve the surface quality of the built part. The surplus buildup at the edge of the fabricated part occurred owing to the difference in the thermal properties between the solidified part and the deposited metal powder. The principal factors affecting the formation of the surplus part were the laser-irradiated position at the first layer buildup and the energy density. Moreover, the formation of the surplus part was improved using the laser scan strategy, in which the laser-irradiated position was shifted inward. The peripheral face of the built part formed periodical steps, owing to the deformation induced by the change in the thermal distribution inside the built part. These steps could be reduced using a machining strategy combining the rough machining process with a finishing allowance and stepwise finishing process.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85113689855&origin=inward; http://dx.doi.org/10.1007/s00170-021-07880-z; https://link.springer.com/10.1007/s00170-021-07880-z; https://link.springer.com/content/pdf/10.1007/s00170-021-07880-z.pdf; https://link.springer.com/article/10.1007/s00170-021-07880-z/fulltext.html; https://dx.doi.org/10.1007/s00170-021-07880-z; https://link.springer.com/article/10.1007/s00170-021-07880-z
Springer Science and Business Media LLC
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know