Original scientific paper

https://doi.org/10.21278/TOF.502078725

Additive Manufacturing Case Study: Metal 3D Printing of a Wankel Engine Model

Djordje Dihovicni orcid.org/0000-0003-0961-2540 ; The Academy of Applied Studies Polytechnic, Department of Electrical and Computer Engineering, Belgrade, Serbia *
Milan Miščević ; Teximp d.o.o, Branch Belgrade, Belgrade, Serbia
Aleksandra Mitrović ; The Academy of Applied Studies Polytechnic, Department of Mechanical Engineering, Belgrade, Serbia; University “Union - Nikola Tesla”, Faculty of Information Technology and Engineering, Belgrade, Serbia
Nada Ratković Kovačević orcid.org/0000-0001-6398-4391 ; The Academy of Applied Studies Polytechnic, Department of Electrical and Computer Engineering, Belgrade, Serbia

* Corresponding author.

Abstract

The paper presents a case study on additive manufacturing, focusing on metal three-dimensional (3D) printing technology, to produce intricate components and assemblies required for constructing a demonstration model of the Wankel engine. After creating a digital 3D model, Studio SystemTM was used to print 3D physical parts. For the metal 3D printing process, 17-4 PH stainless steel, a high-performance material provided by Desktop Metal, was selected. The 3D printing process, which involves printing, debinding, and sintering, was photo documented. The Wankel engine was assembled using sintered 3D-printed parts, and the porosity of the material was tested by injecting fuel. The results demonstrated that the material used for the engine model was fuel-tight, thus validating the precision and effectiveness of the metal 3D printing process in producing highly complex operational parts.

Keywords

additive manufacturing; 17-4 PH stainless steel; metal 3D printing; precision inspection of high-quality components; Wankel engine

Hrčak ID:

346094

URI

https://hrcak.srce.hr/346094

Publication date:

9.4.2026.

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