Keio University

Achieving Ultra-smooth Steel Surfaces with a Hybrid Laser Process- Polishing 3D-printed Objects to a Mirror Finish -

Publish: March 09, 2018
Public Relations Office

March 9, 2018

Keio University

A joint research group, including Professor Jiwang Yan from the Department of Mechanical Engineering, Faculty of Science and Technology at Keio University, Yazaki Corporation's Technology Research Center, and Optoquest Co., Ltd., has succeeded for the first time in the world in creating a glossy surface with sub-micron level surface roughness and a minimal heat-affected zone by removing irregularities from steel surfaces using a hybrid process of a picosecond pulsed fiber laser and a continuous wave laser. Additive manufactured objects made with increasingly popular metal 3D printers have significant surface irregularities after layering, requiring finishing processes such as cutting and polishing. This new method is expected to enable high-speed, high-quality finishing for additively manufactured objects, including those with fine features.

A portion of these research findings will be presented at the Japan Society for Precision Engineering 2018 Spring Conference, starting on March 15, 2018.

Please see below for the full press release.

Press Release (PDF)