3D Printer Makes Parts Stronger Than Steel

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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 :)



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