The mechanism of forming coagulated particles in selective laser melting of cobalt-chromium-molybdenum powder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Selective laser melting (SLM) is thought to be a prospective manufacturing technology of complex metal components. Formation of coagulated particles when melting is reported to be an important factor for target mechanical properties of the end product. This paper discusses the effect of SLM parameters, including laser output power, laser movement velocity, preheating temperature of the powder, laser beam diameter on the mechanism of forming coagulated particles in melting cobalt-chromium-molybdenum powdered material. The study shows that a rise of power to 60 W at a scanning velocity 6 mm/s causes coagulated particles to expand to 350 µm; that is far bigger than a size of powder in as delivered state (90 µm). The work investigates the effect of mechanical activation of cobalt-chromium-molybdenum powder on dimensions of coagulated particles. The research data can be applied to the improvement of up-to-date optimization approaches to manufacturing process parameters in SLM technology.

Original languageEnglish
Title of host publicationProblems and Prospects for the Development of Materials Science
EditorsAlexander Saprykin
PublisherTrans Tech Publications Ltd
Pages79-85
Number of pages7
ISBN (Print)9783035716764
DOIs
Publication statusPublished - 2020
EventInternational Scientific and Practical Conference on Materials Science, Mechanical Engineering and Energy: Problems and Prospects for Development, MSMEE 2019 - Barnaul, Russian Federation
Duration: 27 Jun 201928 Jun 2019

Publication series

NameKey Engineering Materials
Volume839 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

ConferenceInternational Scientific and Practical Conference on Materials Science, Mechanical Engineering and Energy: Problems and Prospects for Development, MSMEE 2019
CountryRussian Federation
CityBarnaul
Period27.6.1928.6.19

Keywords

  • Coagulated particles
  • Mechanical activation
  • Selective laser melting
  • SLM parameters

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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