New method of manufacturing using powder bed: Additive Manufacturing with Selective Laser Melting

DMG MORI underlines its position as a market leader, being the first company to offer a full range of Additive Manufacturing machines by adding the new LASERTEC 30 SLM powder bed machine, to join the existing hybrid deposition welding machines.

[brianbrewster]

Okay, so how do you clean the lattice sections away if they are fused metals? When these were made from plastic, you could carve them out with a sharp pocket knife. I'm thinking you need something stronger than that working with metal. Also, is it still possible to heat treat these (essentially cast) parts? Or is this unnecessary?

[supreemmdb]

Genuinely curious, but what's new about this? The convenient programming? SLM has been around for more than 20 years, no?

[piotrlenarczyk]

Thank you for video.
From algorithms perspective it is trivially-parallelizable problem:D

[oBseSsIoNPC]

2:31 Looks like a relatively poor quality with lots of final touch-ups required with all that webbing and rough surfacing.

[nicholaszahnweh]

Why is there a need for support structure under the blades? Doesnt the powder provide enough stability to hold the blade while sintering?

[jrard]

Basic question. How to Remove the supports and the print from the Build plate?

[TheIndustrialphreak]

are these using fiber lasers or could I feasibly just DIY something with a diode pumped laser with a dropping Z axis.

[Quadflash]

Wow! Impressive progress in the last few years

[ronnorman]

What was the run time on those impellers?

[badseednut]

Six years ago this method was almost twenty years old.
It blew my mind back then, but it has never actually managed to make it widely to the market and there is a reason for that. Actually more than one.

[pirobotbeta]

Several bits to know.
Laser sintering was one of the first 3d-print technology's. This is very old news.
Laser sintering is astoundingly energy hungry! For every watt in the laser beam, ten other watts had to die. Then there is equipment cooling...
Parts made by this process are going to be porous and less dense than cast metal or machined parts.
They will be far weaker, and being porous, they can wick up all sorts of liquids.
Internal corrosion is a thing with such parts. Nothing on the surface, rotting from the inside.
The surface of printed parts is rough, so you have need for metal forming/finishing tools.
The equipment is NOT something you will ever see on a desk-top; 440 volt service, connections to water/chiller, drainage.
And you can't buy one without a training certificate at the job site!
Yeah, this will solve everything!

[Davidsfoodreview]

How does this work? Is there no previous part in the powdered metal or is it just created entirely by the laser?

[aaron]

I'm surprise they need support for it being powder SLM, guess it'd be similar to SLS but perhaps the extra heat means it's needed... feels almost like a step backwards to have to use support material.

[jaxxonbalboa]

ARE THE SURFACES UNIFORMLY SMOOTH AND IS THE TENSILE STRENGTH THE SAME AS IF IT HAD BEEN CAST FROM ONE PIECE OF MATERIAL?

[jamesgoodman]

Very surprise. But I have one question. If make the impeller by using the this process, it looks like a included the small hole on the blade. In my understand, the cavitation occur most likely on the small hole. Are there have any solution?

[TheNoisePolluter]

I think what would be really effective is printers that can make highly detailed molds for casting metal objects that would normally be difficult to design, set up, cast etc.

[AminRahimi-]

great, epic, emotional and artistic😍

[prathikbv]

can we use this method for production of lens or reflectors? please someone reply.

[Graeme_Lastname]

That is gunna need a lot of finishing!

[Heikki_Finland]

Does it need the inert gas? What would happen if there was vacuum instead?