SELECTIVE LASER SINTERING TO SHAPE Polymer MATERIALS
Selective laser sintering is based on the principle of the layer-wise build-up of a structure by combining powders to form a part. In general, the process can be characterized as follows:
- specification of a three-dimensional model in the form of CAD data
- no use of molding tools
- generative build-up; molding occurs not by removal of material, but by applying itany desired geometry
- offers freedom of design
Evonik has many years of experience in developing and processing products that lend themselves specifically to new 3d printing processes. Based on CAD data sets, 3d printing generates complex components through the layerwise application of polymer powders, filaments, fluids, binders or other suitable materials.
The principle of additive manufacturing using Selective laser sintering
The principle is always the same: A material is laid down layer by layer. In practice, however, a wide variety of processes lead to the same result. One of the most important processes is selective laser sintering (SLS). Here, a powder is melted by means of a laser, layer by layer. This produces very precisely detailed and robust components made of either plastic or metal.
The specialty chemicals company is a world leader in the production of polyamide 12 powders (PA 12), which have been used in 3D printing for over 20 years. The development of the flexible high-performance powder expands Evonik’s existing product portfolio of synthetic materials for 3D printing. Evonik produces the powder materials at its largest global site, the Marl Chemical Park.
New thermoplastic elastomers for powder-based 3D printing technologies.
Polyamide 12-based high-performance powder materials INFINAM® PA nylons convince with their high quality and processing capabilities.
Polyamide 613-based high-performance powder materials INFINAM® PA has been developed for applications in higher temperature range as part of its polyamide 6 series.
Evonik has developed the world's first flexible plastic material based on TPA (thermoplastic amide) stands out for its high elasticity and strength.