DMLS (direct metal laser sintering) 4340 steel: Influence of starting particle size

Elias Jelis, Rajendra Sadangi, Michael Hespos, Stacey Kerwien, Matthew Clemente, Nuggehalli M. Ravindra

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

1 Scopus citations

Abstract

DMLS processed steel parts display mechanical properties that are comparable to their wrought counterparts. However, inadequate powder coverage has been observed during the use of -4μm + 10 μm powder while making parts with large cross sectional areas at nominal powder feed quantity. This can lead to density variations and inferior mechanical properties. Commercially available 4340 steel powders with different particle size distributions are investigated in this study. The influence of starting powder with structure and properties are discussed.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
PublisherAssociation for Iron and Steel Technology, AISTECH
Pages63-67
Number of pages5
ISBN (Electronic)9781510813939
StatePublished - Jan 1 2015
EventMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015 - Columbus, United States
Duration: Oct 4 2015Oct 8 2015

Publication series

NameMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
Volume1

Other

OtherMaterials Science and Technology Conference and Exhibition 2015, MS and T 2015
CountryUnited States
CityColumbus
Period10/4/1510/8/15

All Science Journal Classification (ASJC) codes

  • Materials Science (miscellaneous)
  • Mechanics of Materials

Keywords

  • Laser sintering
  • Microstructure
  • Powder
  • Steel

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