INVESTIGATION OF MULTI-MATERIAL LIQUID METAL JETTING WITH COPPER MATERIALS

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Date

2023

Authors

Ploetz, M.
Heckmeier, F.
Kirchebner, B.
Volk, W.
Lechner, P.

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University of Texas at Austin

Abstract

Technical parts are typically subject to various requirements that may conflict with each other. Multi-material parts can be a way to overcome such conflicting goals. Liquid Metal Jetting (LMJ) can be a promising additive manufacturing process for the production of multi-material copper parts with high geometric complexity. Since LMJ builds up a part droplet by droplet, there are no mixed powders after printing. In addition, LMJ offers the possibility of changing materials from droplet to droplet. In previous studies, we have shown that it is possible to produce copper alloy parts using LMJ. In this work, we produced multi-material copper specimens at different process parameters to investigate the manufacturing of multi-material copper parts. The investigations show that the quality of the compound and the microstructure depend significantly on the thermal process parameters used.

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