Unmanned Aerial Vehicles Fly Via Additive Manufacturing



Additive manufacturing

William K.  
11/21/2011 4:02:54 PM

My point was intended to assert that a means of forging without needing a forging die, strictly a noncontact forging mechanism, such as a bust of laser energy to create a shock wave equivalent to the forging impact. Probably it would not be competitive beyond relatively small production runs. My thought was that if an approximation of a hammer forging process could be developed that would be the way to get 100% density and a desireable grain pattern. 

In short, it would wind up being a fundamentally different technology from anything that we have presently.

Re: Direct Laser Sintering

Ann R. Thryft  
11/21/2011 12:53:05 PM

Laser sintering is, in fact, being used for very small production quantities in aerospace and high-end automotive applications, such as race cars. Dave, you hit the nail on the head–one reason is for very small volumes where the cost of tooling is huge and amortizing it over a few parts make them very expensive parts, indeed. It’s also being used to make the pattern for the mold in plaster cast aluminum parts, as a substitute for die-cast parts. Stay tuned–a January feature article looks at low-volume manufacturing with AM techniques, including LS.