Binder Jetting: Difference between revisions

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==Process description==
==Process description==
==strengths==
The Binder Jetting process is very similar to that of powder bed fusion, except it uses a chemical binder to bond material together instead of melting the material together. In this process, a layer of a powder material is placed onto the whole print bed, a liquid binder is placed on the needed material, and then another layer of powder is layered on top. After the process is complete, the part is left in the powder bed to let the binder fully cure and then cleaned of excess powder.   
==weaknesses==
 
==Strengths & Weaknesses==
Strengths
* '''Low energy''': Since it requires no melting, this is a very low energy printing technique when compared to other methods.
* '''Material flexibility''': Binder jetting has a large number of available materials.
* '''Scalable''': The print head delivers very little binder in relation to the volume of the final part, enabling the production of a large variety of sized parts.
* '''No need for supports''': Similar to powder bed fusion, the excess powder acts as natural supports.
Weaknesses
*'''Material properties''': Binder jetting parts tend to be weaker then other AM types.
* '''Surface finish''': The surface finish is entirely dependent on the powder material used, and has a wide range of finishes.
* '''Post processing''': To improve the material properties, extensive post processing is sometimes needed. This can involve injecting extra binder, more cure time, or metal sintering.
{| class="wikitable"
!
!Low
! High
|-
|Volume X/Y/Z (mm)
|254/381/203
|800/500/400
|-
|Resolution (mm)
|.5
|.03
|-
|Layer Height (um)
|80
|100
|-
|Price ($)
|Requires
|Quotes
|-
|Weight (kg)
|340
|3700
|-
|Build Rate (cm^3/hr)
|1817
|5058
|}
==Technologies==
==Technologies==
There are a number of specific technologies that can vastly change to capabilities of a printer.
There are a few terms and technologies to be aware of when looking at Binder Jetting machines.
 
* '''Multi color printing:''' Combining a neutral color powder with a colored binder makes this one of the easiest technologies to create multi color printers for.
* '''Metal sintering:''' A temporary binder can be used to hold metal powder together until it can be sintered in a furnace. This allows binder jetting printers to create metal parts, but requires heavy post processing and it may be difficult to get dimensional accuracy due to shrinking during the sintering process.
 
==Navigation==
*[https://omic-am.mme.pdx.edu/index.php/Main_Page?veaction=edit Home page]
*[[Material extrusion|Material Extrusion]]
*[[Powder Bed Fusion]]
*[[Vat Polymerization]]
*[[Direct Energy Deposition]]
*[[Binder Jetting]]
*[[Material Jetting]]
*[[Sheet Lamination]]
==References==
Rosen, Stucker, and Khorasani, Additive Manufacturing Technologies, chap. 8.
 
“Binder Jetting - BJ | Make.” Accessed October 6, 2023. <nowiki>https://make.3dexperience.3ds.com/processes/binder-jetting</nowiki>.

Latest revision as of 12:44, 24 October 2023

Process description

The Binder Jetting process is very similar to that of powder bed fusion, except it uses a chemical binder to bond material together instead of melting the material together. In this process, a layer of a powder material is placed onto the whole print bed, a liquid binder is placed on the needed material, and then another layer of powder is layered on top. After the process is complete, the part is left in the powder bed to let the binder fully cure and then cleaned of excess powder.

Strengths & Weaknesses

Strengths

  • Low energy: Since it requires no melting, this is a very low energy printing technique when compared to other methods.
  • Material flexibility: Binder jetting has a large number of available materials.
  • Scalable: The print head delivers very little binder in relation to the volume of the final part, enabling the production of a large variety of sized parts.
  • No need for supports: Similar to powder bed fusion, the excess powder acts as natural supports.

Weaknesses

  • Material properties: Binder jetting parts tend to be weaker then other AM types.
  • Surface finish: The surface finish is entirely dependent on the powder material used, and has a wide range of finishes.
  • Post processing: To improve the material properties, extensive post processing is sometimes needed. This can involve injecting extra binder, more cure time, or metal sintering.
Low High
Volume X/Y/Z (mm) 254/381/203 800/500/400
Resolution (mm) .5 .03
Layer Height (um) 80 100
Price ($) Requires Quotes
Weight (kg) 340 3700
Build Rate (cm^3/hr) 1817 5058

Technologies

There are a few terms and technologies to be aware of when looking at Binder Jetting machines.

  • Multi color printing: Combining a neutral color powder with a colored binder makes this one of the easiest technologies to create multi color printers for.
  • Metal sintering: A temporary binder can be used to hold metal powder together until it can be sintered in a furnace. This allows binder jetting printers to create metal parts, but requires heavy post processing and it may be difficult to get dimensional accuracy due to shrinking during the sintering process.

Navigation

References

Rosen, Stucker, and Khorasani, Additive Manufacturing Technologies, chap. 8.

“Binder Jetting - BJ | Make.” Accessed October 6, 2023. https://make.3dexperience.3ds.com/processes/binder-jetting.

Retrieved from "https://omic-am.mme.pdx.edu/index.php?title=Binder_Jetting&oldid=266"