Sls rapid prototyping service is an additive manufacturing am technique that uses a laser as the energy supply to sinterpowdered material typically metal, Aiming the laser automatically at points in space defined by a 3d model, Binding the material together to create a solid structure. It is similar to direct metal laser sintering dmls, The two are instantiations of the same concept but differ in technical details. Selective laser melting slm uses a comparable concept, But in slm The composition consists of fully melted rather than sintered, 1 allowing different properties crystal structure, Porosity, In addition to otherss . Sls in addition toward the opposite side mentioned am techniques can be considered somewhat new technology that so far has mainly been used for rapid prototyping and for low, Volume production of component parts. Production roles are expanding as the commercialization of am technology improves.