TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Schmidt, Frank-Michael
A1  - Hötter, Jan-Steffen
A1  - Sokalla, Wolfgang
A1  - Sokalla, Patrick
T1  - Additive Manufacturing by selective laser melting the realizer desktop machine and its application for the dental industry
JF  - Physics Procedia
Y1  - 2010
SN  - 1875-3892
N1  - Laser Assisted Net Shape Engineering 6, Proceedings of the LANE 2010, Part 2
VL  - 5
IS  - 2
SP  - 543
EP  - 549
ER  - 
TY  - JOUR
A1  - Fateri, Miranda
A1  - Hötter, Jan-Steffen
A1  - Gebhardt, Andreas
T1  - Experimental and Theoretical Investigation of Buckling Deformation of Fabricated Objects by Selective Laser Melting
JF  - Physics Procedia
N2  - Although Selective Laser Melting (SLM) process is an innovative manufacturing method, there are challenges such as inferior mechanical properties of fabricated objects. Regarding this, buckling deformation which is caused by thermal stress is one of the undesired mechanical properties which must be alleviated. As buckling deformation is more observable in hard to process materials, silver is selected to be studied theoretically and experimentally for this paper. Different scanning strategies are utilized and a Finite Element Method (FEM) is applied to calculate the temperature gradient in order to determine its effect on the buckling deformation of the objects from experiments.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.phpro.2012.10.062
SN  - 1875-3892
N1  - Part of special issue "Laser Assisted Net shape Engineering 7 (LANE 2012)"
VL  - 39
SP  - 464
EP  - 470
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Hötter, Jan-Steffen
A1  - Fateri, Miranda
A1  - Gebhardt, Andreas
T1  - Selective laser melting of metals: desktop machines open up new chances even for small companies
JF  - Advanced materials research
N2  - Additive manufacturing (AM) of metal parts by using Selective Laser Melting (SLM) has become a powerful tool mostly in the area of automotive, aerospace engineering and others. Especially in the field of dentistry, jewelry and related branches that require individualized or even one-of-a-kind products, the direct digital manufacturing process opens up new ways of design and manufacturing. In these fields, mostly small and medium sized businesses (SME) are operating which do not have sufficient human and economic resources to invest in this technology. But to stay competitive, the application of AM can be regarded as a necessity. In this situation a new desktop machine (Realizer SLM 50) was introduced that cost about 1/3 of a shop floor SLM machine and promises small quality parts. To find out whether the machine really is an alternative for SMEs the University of Applied Science, Aachen, Germany, designed, build and optimized typical parts from the dentistry and the jewelry branches using CoCr and silver material, the latter being new with this application. The paper describes the SLM procedure and how to find and optimize the most important parameters. The test is accompanied by digital simulation in order to verify the build parameters and to plan future builds. The procedure is shown as well as the resulting parts made from CoCr and silver material.
Y1  - 2012
U6  - http://dx.doi.org/10.4028/www.scientific.net/AMR.622-623.461
SN  - 1662-8985 (E-Journal); 1022-6680 (Print)
VL  - 622-623
SP  - 461
EP  - 465
PB  - Trans Tech Publ.
CY  - Baech
ER  - 
TY  - BOOK
A1  - Gebhardt, Andreas
A1  - Hötter, Jan-Steffen
T1  - Additive manufacturing : 3D printing for prototyping and manufacturing
Y1  - 2016
SN  - 978-1-56990-582-1 ; 978-1-56990-583-8
PB  - Hanser Publishers
CY  - Munich
ER  -