Analysis and prediction of copper surface roughness obtained by selective laser melting

Research output: Contribution to journalConference article

Abstract

The paper presents the results of experimental studies of the effect of mechanoactivation of the powder, argon shielding gas and the effect of technological modes of melting: the speed of the laser beam, the power of laser radiation, the scanning step, the preliminary temperature of heating the powder material on the surface roughness of the copper powder material obtained by selective laser melting. Experiments on the melting of copper powder are implemented on the installation of layer-by-layer laser melting of the original design, which allows to adjust all technological modes of melting. The surface roughness is determined on the non-contact digital microscope Olympus LEXT OLS4100. The mathematical dependence of the surface layer roughness of copper powder on the technological modes of melting is obtained on the basis of the theory of experiment planning and static processing of the results. The significant parameters of the regime-the power of laser radiation, the speed of the laser beam, the scanning step affecting the roughness of the layer. The positive effect of mechanical activation of powder material and protective atmosphere on the quality of the surface layer is shown.

Original languageEnglish
Article number012044
JournalIOP Conference Series: Materials Science and Engineering
Volume441
Issue number1
DOIs
Publication statusPublished - 2 Nov 2018
EventInternational Scientific and Practical Conference on Innovations in Engineering and Technology, ISPCIET 2018 - Veliky Novgorod, Russian Federation
Duration: 28 Jun 201829 Jun 2018

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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