Induced crystallization method of rapid metal melts 3d-printing

TL;DR

This paper introduces a magnetohydrodynamical method to accelerate metal 3D printing by inducing crystallization through pressure generated by electric currents, addressing key limitations like long print times and small build volumes.

Contribution

It presents a novel approach using electric current-induced pressure to control melt crystallization, enhancing 3D printing efficiency and material properties.

Findings

Magnetohydrodynamical model with heat effects developed

Range of parameters for induced crystallization identified

Potential to overcome current 3D printing limitations

Abstract

A solution for the most important problems in 3D printing technology (long print times, small build volumes and limited material properties) is proposed. Method is based on the fact that temperature of melts crystallization can be shifted up by pressure. Required pressure can be created by Ampere force caused by electric current in the melt flow. Magnetohydrodynamical model (with heat taken into account) is developed. It has been shown that additional heating of melt by this current can be overcome by appropriate choice of tunable parameters and introduction of some additional magnetic field. Range of parameters where this induced crystallization can take place is found.