Actually, in the jet and power engine world 3D printing is utilized because you can create very complex cooling air arrangements which are not possible by using cores cores on cast parts.e36jon wrote: ↑Thu Jul 23, 2020 9:14 pmGreetings all
I tossed some more images that I stumbled across in my previous post. Hopefully the additional info helps.
The 'heavy diesel' piston with the sodium filled cooling channels got me thinking about the hot section vanes in a jet engine. Those hot section vanes are investment cast in steel with complex internal cooling passages. So, are we doing anything with 3D printing that can't be done via. existing technology? Casting and 3D have similar requirements for getting the core/excess powder out of the finished part, so no real advantage there. In steel or aluminum there isn't an advantage one way or the other from a material POV. 3D printing is a win when more exotic alloys are involved as many of those can't be cast easily. Does it come down to just the 'rapid' part of the equation?
You are not wrong. Ditto for magnesium being a fire hazard. And now that we are talking about powders a lot of formerly benign materials become a hazard due to particle size. The photos I found of the GE turbine blades being made out of TiAl had the machine operator wearing a full respirator... For the purposes of this discussion of what super-zippy material could work I propose we ignore personal safety with the assumption that any concerns could be addressed.
afaik beryllium (a few still say it's not a metal) is a bit like Pluto .....
Banned after that season after protests from Ferrari. Beryllium is perfect for the job, but is expensive and the dust is very unhealthy to inhale.
beryllium is radioactive. there are 12 different forms of beryllium. the form used by F1 teams did emit x-rays.