Numerical modelling of pulsed and continuous wave direct laser deposition of Ti-6Al-4V and Inconel 718

Numerical modelling of pulsed and continuous wave direct laser deposition of Ti-6Al-4V and... Effect of varying laser pulse parameters in laser direct metal deposition (LDMD) of Inconel 718 and Ti-6Al-4V have been shown to be quite complex and results in generation of two brittle phases Ti2Ni and TiNi3. Previous experimental study carried out by the authors discussed by Shah et al. (Sci World J 2014:6, 2014) the LDMD of Inconel 718 and Ti-6Al-4V, where all the sample developed cracks except with ones at low powder feed rate. In order to understand the effect of thermal and structural history on development of stresses during LDMD process, an extensive numerical modelling study has been carried out in the work. Thermal and structural analysis results are verified using the available experimental data. Residual stresses are calculated using numerical modelling in the clad region and at the interface of clad and substrate. Experimental and modelling results show that powder mass flow rate plays an important role in crack development during deposition of Inconel 718 and Ti-6Al-4V and it should be kept at minimum level in order to deposit crack-free samples. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Numerical modelling of pulsed and continuous wave direct laser deposition of Ti-6Al-4V and Inconel 718

Loading next page...
 
/lp/springer_journal/numerical-modelling-of-pulsed-and-continuous-wave-direct-laser-RyhECU2Slc
Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London Ltd.
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-1224-y
Publisher site
See Article on Publisher Site

Abstract

Effect of varying laser pulse parameters in laser direct metal deposition (LDMD) of Inconel 718 and Ti-6Al-4V have been shown to be quite complex and results in generation of two brittle phases Ti2Ni and TiNi3. Previous experimental study carried out by the authors discussed by Shah et al. (Sci World J 2014:6, 2014) the LDMD of Inconel 718 and Ti-6Al-4V, where all the sample developed cracks except with ones at low powder feed rate. In order to understand the effect of thermal and structural history on development of stresses during LDMD process, an extensive numerical modelling study has been carried out in the work. Thermal and structural analysis results are verified using the available experimental data. Residual stresses are calculated using numerical modelling in the clad region and at the interface of clad and substrate. Experimental and modelling results show that powder mass flow rate plays an important role in crack development during deposition of Inconel 718 and Ti-6Al-4V and it should be kept at minimum level in order to deposit crack-free samples.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Nov 4, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from Google Scholar, PubMed
Create lists to organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off