Next gen 3D metal printing
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Next gen 3D metal printing
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Re: Next gen 3D metal printing
#2> The electrochemical approach allows for micron-scale feature resolution, complex internal features, high-purity materials, and rapid scalability to support mass manufacturing.
That just does not sound cheap. One envisions a cost-distributed 3D effort, with this used for certain critical parts.
Re: Next gen 3D metal printing
#3Good to see!
This looks like something I toyed with in 2016, but (as you may expect from my lack of relevant experience and qualifications) all I found were what Edison called "ways to not make a lightbulb".
The:
> microelectrode array printhead
in particular is what I wanted to experiment with, because something like this clearly allows parallelisation of the build process in much the same way photopolymerisation is faster than FDM.
Re: Next gen 3D metal printing
#4My understanding is that most current metal 3d printing yields items with significantly worse properties with respect to shear forces, because of how the molecules align compared to when it's melted together as a whole and cooled (or something like that, I can't find the research paper someone linked to me in the past here regarding that).
Do we know if this is better with respect to that?
Re: Next gen 3D metal printing
#5My understanding is that most current metal 3d printing yields items with significantly worse properties with respect to shear forces, because of how the molecules align compared to when it's melted together as a whole and cooled (or something like that, I can't find the research paper someone linked to me in the past here regarding that). Do we know if this is better with respect to that?
In theory can't the final object be tempered/annealed to achieve the desired properties?
Re: Next gen 3D metal printing
#6My understanding is that most current metal 3d printing yields items with significantly worse properties with respect to shear forces, because of how the molecules align compared to when it's melted together as a whole and cooled (or something like that, I can't find the research paper someone linked to me in the past here regarding that). Do we know if this is better with respect to that?
Texture (the statistical arrangement of all the crystal lattice arrangements that make up a metal) can play a role on mechanical properties, but current metal AM is more than able to meet material standards. It's good to be careful with blanket statements because the most accurate answer is usually "it depends."
Re: Next gen 3D metal printing
#7> The electrochemical approach allows for micron-scale feature resolution, complex internal features, high-purity materials, and rapid scalability to support mass manufacturing. That just does not sound cheap. One envisions a cost-distributed 3D effort, with this used for certain critical parts.
I'd assume slow rather than expensive; if it's similar to other electroplating, think in terms of nm/s in the z-axis, 96,485 Amp-seconds* per mole of whatever metal you're putting down at a small (material dependent) number of volts of potential, so I'd guess OOM €10/kg process plus whatever the material cost is in the form of an electrolyte.
Re: Next gen 3D metal printing
#8My understanding is that most current metal 3d printing yields items with significantly worse properties with respect to shear forces, because of how the molecules align compared to when it's melted together as a whole and cooled (or something like that, I can't find the research paper someone linked to me in the past here regarding that). Do we know if this is better with respect to that?
Where did you hear that?
In general, the issues sintered parts have are slight porosity (We also looked at metal-salt plating processes, and concluded the risks to the operator made it nonviable for general application. There was also the serious environmental impact risks, and that meant hazmat disposal costs etc.
There are always trade-offs with any technology.
Have a great day, =3
Re: Next gen 3D metal printing
#9My understanding is that most current metal 3d printing yields items with significantly worse properties with respect to shear forces, because of how the molecules align compared to when it's melted together as a whole and cooled (or something like that, I can't find the research paper someone linked to me in the past here regarding that). Do we know if this is better with respect to that?
Texture (the statistical arrangement of all the crystal lattice arrangements that make up a metal) can play a role on mechanical properties, but current metal AM is more than able to meet material standards. It's good to be careful with blanket statements because the most accurate answer is usually "it depends."
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Re: Next gen 3D metal printing
#10My understanding is that most current metal 3d printing yields items with significantly worse properties with respect to shear forces, because of how the molecules align compared to when it's melted together as a whole and cooled (or something like that, I can't find the research paper someone linked to me in the past here regarding that). Do we know if this is better with respect to that?
Texture (the statistical arrangement of all the crystal lattice arrangements that make up a metal) can play a role on mechanical properties, but current metal AM is more than able to meet material standards. It's good to be careful with blanket statements because the most accurate answer is usually "it depends."
I agree we should avoid blanket statements, which is why your statement "current metal AM is more than able to meet material standards" is problematic. What standards? There is no generic "material standards" for all materials, and 3d metal printing is definitely inferior to MOST other manufacturing methods in MOST circumstances, in terms of mechanical properties.