The Daily 3D Detail: The pitfalls of metal printing

Posted by Franka Schoening On July - 11 - 2017

Surface finish – a common pitfall

3D printing with metal is mostly accomplished using selective laser melting (SLM) or electron beam manufacturing (EBM). Lasers fuse powdered metal together layer by layer to create the desired object. To improve this process – and other metal printing techniques – engineers are working to avoid common problems, such as: porosity, residual stress, density, warping, cracking, and surface finish.

Michael Molitch-Hou from Engineering.com compiled a fascinating report on seven issues and also offers suggestions on how to avoid them. If you are new to metal printing you will furthermore certainly enjoy his compact, but thorough, introduction to the subject and its various techniques.