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Metals 2017, 7(4), 113;

Case Studies on Local Reinforcement of Sheet Metal Components by Laser Additive Manufacturing

Mechanical Design and Manufacturing, Brandenburg University of Technology Cottbus-Senftenberg, Konrad-Wachsmann-Allee 17, 03046 Cottbus, Germany
Fraunhofer Institute for Laser Technology ILT/Chair for Laser Technology LLT, RWTH Aachen, Steinbachstraße 15, 52074 Aachen, Germany
Digital Additive Production, RWTH Aachen, Steinbachstraße 15, 52074 Aachen, Germany
Author to whom correspondence should be addressed.
Academic Editor: Manoj Gupta
Received: 31 December 2016 / Revised: 15 March 2017 / Accepted: 20 March 2017 / Published: 25 March 2017
(This article belongs to the Special Issue 3D Printing of Metals)
PDF [7952 KB, uploaded 25 March 2017]


This paper details two case studies that make use of laser metal deposition for local reinforcement of sheet metal components. Two benchmark scenarios are investigated, both using aluminum alloys: (i) using laser cladding to increase the stiffness of a pre-formed component, and (ii) applying a local cladding on sheet metal for increasing the thickness prior to a hole-flanging operation. The results show that both routes are viable. Applying claddings onto sheet metal before a metal forming operation must ensure suitable formability, which may be limited by the layer material and undesired changes in the microstructure of the sheet. The limited formability has to be taken into account in the design of the forming operation. Cladding onto already formed components has to cope with inevitable distortion of the component. Nevertheless, introducing additive manufacturing into the field of sheet metal forming opens the possibility to produce new products such as tailored laser-cladded blanks, combinations of sheet and bulk components and to develop new methods such as stiffness management in lightweight design. View Full-Text
Keywords: tailored blanks; additive manufacturing; laser deposition welding tailored blanks; additive manufacturing; laser deposition welding

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Bambach, M.; Sviridov, A.; Weisheit, A.; Schleifenbaum, J.H. Case Studies on Local Reinforcement of Sheet Metal Components by Laser Additive Manufacturing. Metals 2017, 7, 113.

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