Abstract
Several re-melting type post-processing technologies were developed to improve surface qualities and properties of the fabricated part by a metal additive manufacturing process. The aim of this paper is to investigate re-melting characteristics of the Stellite21 deposited part using a pulsed plasma electron beam with a large irradiation area for the improvement of surface characteristics and material usage ratio of the deposited part by a direct energy deposition (DED) process. The influence of process parameters, including acceleration voltage and the number of beam irradiations, on the roughness, the hardness, the thickness, and the morphology of the re-melted region is examined using results of re-melting experiments. Using the experimental results, a novel post-processing method, including a mechanical subtractive process and a re-melting process using a pulsed plasma electron beam, is proposed. The results of post-processing experiments confirm that the proposed method can significantly improve the surface characteristics and the material usage ratio of the DED part.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Precision Engineering and Manufacturing-Green Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
