The Library
Application of adjustable ring mode laser in remote laser welding of additive manufactured AlSi10Mg alloy
Tools
Tools
Tools
Sun, Tianzhu, Ferguson, Nesta, Liu, Conghui, Gibbons, Greg and Franciosa, Pasquale (2022) Application of adjustable ring mode laser in remote laser welding of additive manufactured AlSi10Mg alloy. Journal of Laser Applications, 34 (4). 042007. doi:10.2351/7.0000794 ISSN 1042-346X.
|
PDF
WRAP-Application-of-adjustable-ring-mode-laser-in-remote-laser-welding-of-additive-manufactured-AlSi10Mg-alloy-Sun-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (8Mb) | Preview |
Official URL: http://dx.doi.org/10.2351/7.0000794
Abstract
Additive manufacturing (AM) is an innovative manufacturing technology that offers the ability to build parts with both geometric and material complexities. However, limitations, including low build volume capability and production rate, yield its rapid application in high volume production. This paper presents the potential of remote laser welding (RLW) as a post-AM joining approach to scale up the AM components. The AM AlSi10Mg alloy was fabricated by direct metal laser sintering and subsequently joined by RLW without filler wire or shielding gas. A novel adjustable ring mode (ARM) laser beam was employed during the RLW process where the ring beam is designed to stabilize the keyhole by providing the preheating and postheating while the core beam guarantees a sufficient weld penetration. The impact of the ARM laser on weld porosity was evaluated in both fillet lap and bead-on-plate welding configurations, accompanied by the variation of core/ring beam power ratios. Crack-free welds with promising weld appearance were obtained among all welding trials, indicating that the ARM-RLW process can be employed for the robust connection of AM AlSi10Mg alloys. Optimizing the power ratio can substantially reduce the weld porosity area ratio from 24.3% to 13.5% in the fillet lap configuration and from 24.2% to 14.4% in the bead-on-plate configuration. Analysis of variance tests statistically confirmed the significant impact of the power ratio on the porosity area ratio. Future work has been suggested for the process maturation of RLW as a post-AM joining approach in industrial application.
| Item Type: | Journal Article | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TN Mining engineering. Metallurgy T Technology > TS Manufactures |
||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
||||||||||
| Library of Congress Subject Headings (LCSH): | Additive manufacturing, Laser welding, Alloys , Aluminum | ||||||||||
| Journal or Publication Title: | Journal of Laser Applications | ||||||||||
| Publisher: | Laser Institute of America | ||||||||||
| ISSN: | 1042-346X | ||||||||||
| Official Date: | November 2022 | ||||||||||
| Dates: |
|
||||||||||
| Volume: | 34 | ||||||||||
| Number: | 4 | ||||||||||
| Number of Pages: | 9 | ||||||||||
| Article Number: | 042007 | ||||||||||
| DOI: | 10.2351/7.0000794 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||
| Date of first compliant deposit: | 25 October 2022 | ||||||||||
| Date of first compliant Open Access: | 27 October 2022 | ||||||||||
| RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
