Characterisation of electron beam melting process on Ti6Al4V in order to guide finishing operation
by Adrien Dolimont; Sébastien Michotte; Edouard Rivière-Lorphèvre; François Ducobu; Charlotte De Formanoir; Stéphane Godet; Enrico Filippi
International Journal of Rapid Manufacturing (IJRAPIDM), Vol. 5, No. 3/4, 2015

Abstract: There is still a lack of standards in the fast growing Additive Manufacturing (AM) field and efforts are still required to improve parts reliability, consistency and quality. The aim is to define machining allowance for the Electron Beam Melting (EBM) process on Ti6Al4V, which still needs finishing step. Analysis on the dimensions obtained was carried out over a large number (110) of raw printed parts having the same geometry using a coordinate measuring machine (CMM). The geometric and dimensional tolerances were highlighted. A micro-geometrical analysis was also carried out to determine the roughness dispersion. A capability analysis was conducted to define the class of tolerance for EBM process. The results show that the Interval of Tolerances (IT) class is close to sand casting process for dimensional characterisation (IT15 or even IT12 if systematic errors are suppressed). This study is carried out in order to guide finishing operations occurring after AM.

Online publication date: Fri, 19-Feb-2016

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Rapid Manufacturing (IJRAPIDM):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com