Pavel Krakhmalev

Professor of Materials Science, Karlstad University

3D metal printing: metallurgical aspects and quality challenges

Description: 3D metal printing provides unique opportunities to manufacture components with complex shape, for example with bionic design, that is impossible to be manufactured by conventional subtractive methods. Nevertheless, except design aspects, quality control and properties of the printed material are of key importance for final applications. Understanding of formation of microstructure and defects, and influence of them on properties is therefore of a key importance. This presentation is dedicated to an overview of the materials engineering aspects of laser powder bed fusion. Printability, principles of formation of microstructure in materials, formation of defects, generation of residual stresses and other aspects of 3D printing of metals are overviewed. General guidance design – microstructure – properties is provided.