stevieturbo

https://www.youtube.com/watch?v=DNedUZxP8NU#t=219

Seems they're taking the quick spool valve approach and refining it !

95bowtie

I wanna know how they 3D print steel. I've seen the pastic 3D printers but steel or titanium? Wtf

2muchboostNY

iTrader: (8)

^buddy working for an R&D contract which is super top secret kept it simple and told me that basically what they do is heat the metal to the point where it melts, maintains the liquid under extremely high pressure to force it to stay liquefied, then using a complex and calculated system they pour the liquid and cool it instantly to form the shape....the same way they do with the plastic resin material. He assured me the technology exists and it is crazy but that the legal aspect of this with patents and such are whats holding back the big 3D printing boom. They already build houses in Chinese villages using huge 3D printers and cement/ash/concrete resin....neat stuff

stevieturbo

STEEPSS

iTrader: (30)

Little longer version.

stevieturbo

It's the same length ? 4:47

Just realised the link I posted starts half way through for some reason

2muchboostNY

iTrader: (8)

^^^amazing technology there in those videos. Koenigsegg always has some crazy technology. The air/valve actuated technology they have is nuts. All F1 type technology.

Exidous

iTrader: (11)

It's just like the Porsche Variable vane turbos but MUCH simpler and I'd imagine much more reliable. Would LOVE to get my hands on one of those exhaust housings.

There's a reason a 911 Turbo gets peak tq from 1.9-6k RPM.

stevieturbo

Doesnt the Porsche use proper VNT though ?

It looks like the Koeeenniggsssegg are basically refining the quick spool valve ! But very interesting they also create distinctly shaped flow paths through the scroll too.

Exidous

iTrader: (11)

Porsche does indeed.

Between the revamped scroll design and the flap location I'd bet it's just as good as the Porsche design at a fraction the cost.

stevieturbo

Not sure how cheap a 3D printed titanium turbine housing would be !!! Or whatever material it is made from.


Either way, 3D printing is amazing...but equally the applications of 3D printing and the intricate shapes it allows

BanditDave

iTrader: (11)

One of the problems with additive manufacturing like 3D printing is there is no specs and standards developed like the tried and true machining methods so a lot of industry is slow to adopt. While testing has showed that the material maintains 98% of its properties compared to the raw material, simple things like humidity in the booth can warp the part and screw you. There are a lot of things that can really benefit from this manufacturing method because it greatly reduces waste. There is however limits in the complexity of some of the parts and impossible to get rid of all the secondary machining in most cases. BUT it does greatly reduce waste and can get you most of the way there. It is pretyt exciting stuff and as more and more companies adopt it, specs and standards will soon follow.