Comparison of Selective Laser Melting Post-Processes based on Amplitude and Functional Surface Roughness parameters

D. Loaldi*, M. Kain, L. Haahr‐Lillevang, N. K. Vedel-Smith, G. Tosello

*Corresponding author for this work

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

14 Downloads (Pure)

Abstract

The rising interest of Metal Additive Manufacturing (MAM) for tool production has requested major attention to post-processing techniques. As a matter of fact, MAM-based process chains for tool productions aims to disrupt process chains based on conventional manufacturing technologies by enabling greater design flexibility, efficient material usability and lightweight design, lead time reduction and maximization of the tool functionalities by optimal design solutions such as topology optimization. In order to complete the transitions towards MAM, at first, tools geometrical specifications have to be met for the same quality standards of conventional manufacturing technologies. In this study, a comparison among different post-processing technologies is aiming to provide a quantitative understanding of the final geometrical characteristics of a MAM-based 316L steel component post-processed using different techniques: Glass Blasting, Vibration Deburring, Functional Coatings (Sol-GEl), Dry-Electro Polishing, Optimized Abrasion, Electrochemical Polishing and Plasma-Electrolytic Polishing. The characterization is based on average amplitude surface roughness parameters (Sa, Ssk) and functional surface parameters (Sk, Spk/Sk Svk/Sk). The results show the possibility to achieve a final surface roughness amplitude roughness below 1 μm using the considered Plasma Electrolytic Polishing and Dry-Electro Polishing processes.
Original languageEnglish
Publication date2019
Number of pages2
Publication statusPublished - 2019
EventJoint Special Interest Group meeting between euspen and ASPE Advancing Precision in Additive Manufacturing - Ecole Centrale de Nantes, Nantes, France
Duration: 16 Sep 201918 Sep 2019

Conference

ConferenceJoint Special Interest Group meeting between euspen and ASPE Advancing Precision in Additive Manufacturing
LocationEcole Centrale de Nantes
CountryFrance
CityNantes
Period16/09/201918/09/2019

Keywords

  • Metal Additive Manufacturing
  • Post-Processing
  • Surface roughness

Cite this

Loaldi, D., Kain, M., Haahr‐Lillevang, L., Vedel-Smith, N. K., & Tosello, G. (2019). Comparison of Selective Laser Melting Post-Processes based on Amplitude and Functional Surface Roughness parameters. Abstract from Joint Special Interest Group meeting between euspen and ASPE Advancing Precision in Additive Manufacturing, Nantes, France.