Studies on Thin and Thick-Walled SS316L Overhanging Specimens Manufactured Using Powder-Fed Laser-Based Directed Energy

dc.creatorBelchou, Alexander P.
dc.creatorJacob, Ashish
dc.creatorJoshi, Sanjay
dc.creatorReutzel, E.W.
dc.creatorCoutts, Peter
dc.date.accessioned2023-02-10T13:56:06Z
dc.date.available2023-02-10T13:56:06Z
dc.date.issued2022
dc.description.abstractEffective Design for Additive Manufacturing (DfAM) requires accurate knowledge of a machine’s capabilities and limitations. One important factor is the machine’s ability to deposit unsupported overhanging features. A general method was devised to characterize the ability of a powder-fed Laser-Based Directed Energy Deposition (LB-DED) system to deposit overhanging features with various overhang angles, wall thicknesses, and scan strategies, which was then investigated on a DMG Mori LASERTEC 65 3D Hybrid LB-DED system using 3-axis toolpaths. To assess the accuracy of the manufactured overhang angle, for each specimen the angle of the downward facing surface and upward facing surface were measured and compared to the target overhang angle. It was observed that for the longitudinal scan strategy, overhang accuracy substantially degraded as wall thickness increased. For the transverse and cross hatch patterns there is no observable trend between the achievable overhang angle and the wall thickness. In addition, it was observed that in general increasing the target overhang angle degrades the accuracy of the manufactured overhang angle. The most accurate overhang angles overall were achieved for the longitudinal 1 bead thick specimens. These results will help inform future DfAM and path planning strategies. This research fills a gap in the literature by providing a general method to assess overhang capabilities for LB-DED systems.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/117447
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/44328
dc.language.isoengen_US
dc.relation.ispartof2022 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectSS316Len_US
dc.titleStudies on Thin and Thick-Walled SS316L Overhanging Specimens Manufactured Using Powder-Fed Laser-Based Directed Energyen_US
dc.typeConference paperen_US

Access full-text files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Studies on Thin and Thick-Walled SS316L Overhangin.pdf
Size:
2.12 MB
Format:
Adobe Portable Document Format
Description:

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.64 KB
Format:
Item-specific license agreed upon to submission
Description: