3D Printing Stainless Steel...

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Fred Bloggs

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Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?
 
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven
 
On 20/8/20 7:24 am, Lasse Langwadt Christensen wrote:
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven

There are metal printers that use laser sintering of each layer.
 
Lasse Langwadt Christensen wrote:
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven

sinter : to cause to become a coherent mass by heating without melting

How can steel powder ever become integrated without melting? Sounds
like brittle steel.
 
fredag den 21. august 2020 kl. 02.07.17 UTC+2 skrev Tom Del Rosso:
Lasse Langwadt Christensen wrote:
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven

sinter : to cause to become a coherent mass by heating without melting

How can steel powder ever become integrated without melting? Sounds
like brittle steel.

https://youtu.be/nyYcomX7Lus
 
Lasse Langwadt Christensen wrote:
fredag den 21. august 2020 kl. 02.07.17 UTC+2 skrev Tom Del Rosso:
Lasse Langwadt Christensen wrote:
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven

sinter : to cause to become a coherent mass by heating without
melting

How can steel powder ever become integrated without melting? Sounds
like brittle steel.

https://youtu.be/nyYcomX7Lus

Thanks. So it gets very close to melting where it\'s probably not a true
solid any more.
 
On Friday, August 21, 2020 at 5:39:22 PM UTC-4, Tom Del Rosso wrote:
Lasse Langwadt Christensen wrote:
fredag den 21. august 2020 kl. 02.07.17 UTC+2 skrev Tom Del Rosso:
Lasse Langwadt Christensen wrote:
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven

sinter : to cause to become a coherent mass by heating without
melting

How can steel powder ever become integrated without melting? Sounds
like brittle steel.

https://youtu.be/nyYcomX7Lus

Thanks. So it gets very close to melting where it\'s probably not a true
solid any more.

Yes. Imagine one floating soap bubble bumping into another and
the two bubbles being pulled together by the surface tension,
fusing into a single object.

Or try putting a bunch of ice cubes into a plastic bag, and you\'ve
got the idea--material flows/diffuses between the cubes at every point
of contact.

Close to the melting point, the process is greatly accelerated.

Particles in pre-sintered metal objects flow together into a
nearly solid object when sintered, with typically 97-99% solid
void-free metal.

Cheers,
James Arthur
 
On 2020-08-21 21:54, dagmargoodboat@yahoo.com wrote:
On Friday, August 21, 2020 at 5:39:22 PM UTC-4, Tom Del Rosso wrote:
Lasse Langwadt Christensen wrote:
fredag den 21. august 2020 kl. 02.07.17 UTC+2 skrev Tom Del Rosso:
Lasse Langwadt Christensen wrote:
onsdag den 19. august 2020 kl. 23.04.16 UTC+2 skrev Fred Bloggs:
Printable stainless-steel material withstands harsh environments

https://insights.globalspec.com/article/11164/printable-stainless-steel-material-withstands-harsh-environments

What the heck is the printer made out of?

afaiu it is pretty much a normal 3d printer, the material is just a
metal powder with in a plastic binder, after printing it is sintered
in an oven

sinter : to cause to become a coherent mass by heating without
melting

How can steel powder ever become integrated without melting? Sounds
like brittle steel.

https://youtu.be/nyYcomX7Lus

Thanks. So it gets very close to melting where it\'s probably not a true
solid any more.

Yes. Imagine one floating soap bubble bumping into another and
the two bubbles being pulled together by the surface tension,
fusing into a single object.

Or try putting a bunch of ice cubes into a plastic bag, and you\'ve
got the idea--material flows/diffuses between the cubes at every point
of contact.

Close to the melting point, the process is greatly accelerated.

Particles in pre-sintered metal objects flow together into a
nearly solid object when sintered, with typically 97-99% solid
void-free metal.

Cheers,
James Arthur

Hot isostatic pressing (aka HIPping) makes fully-dense sintered metals.
It\'s a very cool technique that I\'m pretty sure you already know about.
but others may not.

https://www.epma.com/hot-isostatic-pressing/

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com
 

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