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Method for Increasing the Green Strength of 3D-Printed Metal Components by Modification of Metal Powder

Ferrand-Drake del Castillo, Ragnar LU (2017) FKM820 20162
Materials Engineering
Abstract
3D printing of metal components is a growing industry where the demand of highly precise and complicated geometrical metal structures are met. Höganäs is with its Digital Metal department one of the few companies that do 3D-printing by powder bed ink-jet technique. In this technique a binding material is needed in order to retain the designated structure until sintering.
In this project a 316 L gas atomized stainless steel metal powder was modified in its surface structure by using two materials, (a binder and a surface modifying material “Surfmod”), and used to make TRS-bars and print components. It was shown that it is possible to increase the binder and Surfmod contents of TRS-bars and printed components. By testing the green... (More)
3D printing of metal components is a growing industry where the demand of highly precise and complicated geometrical metal structures are met. Höganäs is with its Digital Metal department one of the few companies that do 3D-printing by powder bed ink-jet technique. In this technique a binding material is needed in order to retain the designated structure until sintering.
In this project a 316 L gas atomized stainless steel metal powder was modified in its surface structure by using two materials, (a binder and a surface modifying material “Surfmod”), and used to make TRS-bars and print components. It was shown that it is possible to increase the binder and Surfmod contents of TRS-bars and printed components. By testing the green strength, (GS), it was proven that in a lab environment it is possible to create TRS-bars with the help of modified powders that have a higher GS than the TRS-bars made from non-modified powders. In order to achieve a higher GS for printed parts further testing is needed. (Less)
Popular Abstract
In this report an investigation has been conducted on the possibility to make the printing process of 3D metal objects in a more effective manner. Today the ink-jet powder bed 3D printing of metal components, demands elaborate post-processing operations that could go quicker if the printed objects were to be more robust. In lab-scale it has been proven that printing stronger parts than as of today is possible, but has yet to be proven in a printing operation.
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author
Ferrand-Drake del Castillo, Ragnar LU
supervisor
organization
course
FKM820 20162
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Metal 3D-Printing, Powder bed Ink-Jet 3D-Printing, Green Strength, Additive Manufacturing, Metal Powder
language
English
id
8907567
date added to LUP
2017-09-19 09:03:32
date last changed
2017-09-19 09:03:32
@misc{8907567,
  abstract     = {3D printing of metal components is a growing industry where the demand of highly precise and complicated geometrical metal structures are met. Höganäs is with its Digital Metal department one of the few companies that do 3D-printing by powder bed ink-jet technique. In this technique a binding material is needed in order to retain the designated structure until sintering. 
	In this project a 316 L gas atomized stainless steel metal powder was modified in its surface structure by using two materials, (a binder and a surface modifying material “Surfmod”), and used to make TRS-bars and print components. It was shown that it is possible to increase the binder and Surfmod contents of TRS-bars and printed components. By testing the green strength, (GS), it was proven that in a lab environment it is possible to create TRS-bars with the help of modified powders that have a higher GS than the TRS-bars made from non-modified powders. In order to achieve a higher GS for printed parts further testing is needed.},
  author       = {Ferrand-Drake del Castillo, Ragnar},
  keyword      = {Metal 3D-Printing,Powder bed Ink-Jet 3D-Printing,Green Strength,Additive Manufacturing,Metal Powder},
  language     = {eng},
  note         = {Student Paper},
  title        = {Method for Increasing the Green Strength of 3D-Printed Metal Components by Modification of Metal Powder},
  year         = {2017},
}