Quantitative Analysis of 3D-Printed Bimetallic Component

Abstract

The book chapter reports on hybrid manufacturing (wire-arc additive manufacturing and metal forming) of 3D-printed bimetallic structure parts. After 3D printing, the metal flow behaviour of the printed material was studied using a Gleeble 3500 thermal-mechanical simulator. The test conditions were temperature range 850-1000°C and strain rate of 1s−1 and 10s−1 to strain of 0.6. The results show that the initial microstructure of the bimetallic structure had excellent bonding properties. The flow stress-strain curves increased with a decrease in deformation temperature and vice versa at a given strain rate. The study developed a constitutive equation that predicts the metal flow behaviour of the material studied. From the analysis, the material constants were a stress exponent of 4.76 and an activation energy of 213.7 kJmol−1. The study indicates that this method (hybrid manufacturing) is possible in the industrial production process.