Thermo-mechanical analysis of laser additive manufacturing for metals

Hsuan Hao Shih, Chih Kuang Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The aim of this study is to develop a finite element analysis technique to characterize the distributions of temperature and stress in the process of multilayer deposition of metallic powders by laser additive manufacturing (LAM). Simulation results indicate the residual normal stress in the laser moving direction is greater than that in other directions due to a larger temperature gradient, and it increases with number of deposited layers. Highly residual stresses are present in the LAM build and at the base nearby the interface between the build and base.

Original languageEnglish
Title of host publicationRecent Development in Machining, Materials and Mechanical Technologies III
EditorsHuy Bich Nguyen
PublisherTrans Tech Publications Ltd
Pages7-12
Number of pages6
ISBN (Print)9783035714821
DOIs
StatePublished - 2019
EventInternational Conference on Machining, Materials and Mechanical Technologies, IC3MT 2018 - Ho Chi Minh City, Viet Nam
Duration: 19 Sep 201822 Sep 2018

Publication series

NameKey Engineering Materials
Volume825 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

ConferenceInternational Conference on Machining, Materials and Mechanical Technologies, IC3MT 2018
Country/TerritoryViet Nam
CityHo Chi Minh City
Period19/09/1822/09/18

Keywords

  • Finite element analysis
  • Laser additive manufacturing
  • Metal
  • Residual stress
  • Temperature gradient

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