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Helical milling of bore holes in Ti6Al4V parts produced by selective laser melting with simultaneous support structure removal
Citation Link: https://doi.org/10.15480/882.2633
Publikationstyp
Journal Article
Date Issued
2018-12-13
Sprache
English
TORE-DOI
TORE-URI
Journal
Volume
18
Start Page
89
End Page
96
Citation
Procedia Manufacturing (18): 89-96 (2018)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
Elsevier
Selective Laser Melting (SLM) is a powder bed based Additive Manufacturing (AM) process that is currently being established in the series production of Ti6Al4V components in the aviation industry. One advantage is the significantly lower Buy-to-Fly ratio. However, subsequent machining is necessary in order to remove support structures of the SLM process and to fulfill quality requirements. Experimental results on support structure removal and simultaneous finishing of holes by helical milling are presented. Engagement conditions in helical milling are strongly influenced by the support structure. Material removal rates in both peripheral and axial direction are calculated and agree well with the variation of measured forces in these directions. In addition, the surface roughness of the machined holes is affected by the support structure design and may change along the hole perimeter. The findings indicate how support structures should be designed in order to obtain high quality bore holes in one machining step.
Subjects
Force
Helical milling
Modeling
SLM
Support structure removal
Surface roughness
Titanium
DDC Class
330: Wirtschaft
600: Technik
More Funding Information
The results of this publication have been achieved in the project ALM2AIR funded by the German Federal Ministry
for Economic Affairs and Energy under funding code 20W1501M.
for Economic Affairs and Energy under funding code 20W1501M.
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