In many cases, the functional performance of additively manufactured components can only be ensured by finishing the functional surfaces. Various methods are available for this purpose. This paper presents a procedure for selecting suitable processes for finishing laser beam melting additive–manufactured parts which is ultimately based on technological knowledge. It was experimentally proven that the use of several consecutive finishing processes is beneficial to achieve better surface quality. One finishing process chain was particularly effective (namely particle blasting/vibratory grinding/plasma electrolytic polishing) and the technological limits of this method were investigated in this study. The optimal parameters for this process combination ensured a surface roughness Sa < 1 µm.

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Die unterschiedlichen Studien zum Bau von Musikinstrumenten-Prototypen mittels Additiver Fertigung zeigen deutlich die Vorteile der Designfreiheit. Zur industriellen Implementierung fehlen allerdings noch immer die Ansätze.

At present, dry tool grinding is one of the most discussed research topics in modern manufacturing technology. There are several developments for grinding wheels and methods for determining optimum grinding parameters which enable good surface properties to be obtained. Another potential to achieve better surface quality for dry grinding is the intentional change in process kinematics. This change makes it possible to carry out the task of cooling, namely lubrication of the contact area, and cooling and evacuation of the chips.This paper proposes innovative face-grinding kinematics in order to improve the surface properties for tool grinding. First, the principles of the new grinding kinematics are described and, second, a method for optimization of the process parameters is presented in order to assure the given surface requirements for the face grinding of inserts with high productivity.