3D Printer Makes Parts Stronger Than Steel
A new technique for 3D printer. Material using lasers and a rapid cooling process to fuse metal alloy particles together in a dense, tightly packed structure.
3D printing researchers want to make stronger parts for any structure. Their setup starts with a powdery layer of metal alloy particles laid on a flat surface. A computer-controlled, high-powered laser beam then advances back and forth across the surface. Particles hit by the laser melt and fuse together.
The surface then drops down a step, another layer of powder is added, and the laser heating process repeats, binding the newly melted material to the layer below. By repeating this tier-by-tier addition, engineers can build complex shapes, such as rocket engines.
This is cheap and quick. Still in research phase :)
http://www.sciencemag.org/news/2017/10/3d-printing-doubles-strength-stainless-steel
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