plastic powders, rubbers, carbon
Selective Laser Sintering (SLS) is the rapid prototyping technique that uses the building material in powder form based on polyamide (PA) also with 30% fillers (charge glass or PA-GF, charge Aluminum or PA -AL / Alumide, charge Carbon or PA-C / Carbomide). The laser processing binds the granules together generating solid forms, but not perfectly compact due to residual spaces between the grains that are never completely dissolved. To achieve compactness and guarantee hydraulic tightness, parts made with SLS sintering must be infiltrated or impregnated. From the SLS it is possible to obtain objects in simil rubber using as a material rubber granules (block polyether amide or PEBA).
Taking advantage of structural assembly and bonding, our plastic sintered materials have no real dimensional limits. Objects of considerable size can be broken down into sub-parts that are dimensionally more controlled and already equipped with mechanical joints (such as dovetail) that are reassembled with structural epoxies and finished with fiberglass mesh to ensure superior resistance in the area of cut. These strategies allow the optimization of time and costs as well as optimizing the intrinsic deformations in the processing of thermoplastics.
This solution is very suitable in all those testing applications where the detail aspect, although good, is compromised with the best feature of the industrial polymer.
The material has a typical consistency of industrial nylon, very resistant to traction and less to cutting. The loaded aluminum has a remarkable wear resistance.