Selective laser sintering (SLS) is a 3D printing technology, belonging to the powder bed fusion process series, which can produce high-precision and durable parts, and can be directly used for end-use, small-batch production or handmade samples. The conventional materials are plastic powder, Nylon nylon, Non-metal composite materials, non-metallic composite materials, etc. The material thickness is about 0.06-0.1 mm/layer.
3D printing
Principle of SLS process
1. The powder particles are stored in the feed bin on the left. When printing, the lifting platform of the feed bin rises upward, and the powder higher than the printing plane is pushed onto the printing plate of the printing bin through the powder laying roller to form a thin and flat powder layer;
2. At this time, the laser beam scanning system will selectively scan the powder layer according to the two-dimensional CAD path of the slice, and the scanned powder particles will be sintered together due to the high temperature of the laser focus, resulting in a solid slice with a certain thickness, and the area not scanned will still remain the original loose powder shape;
3. After the sintering of the first layer is completed, the printing platform will drop according to the slice height, the horizontal roller will pave the powder again, and then start the sintering of the next layer, at this time, the layers are also sintered together;
4. Repeat the above steps until all layers are sintered. The printed solid model can be taken out by removing and recycling the unburned powder.
3D printing technology of selective laser sintering
SLS3D printing
ZAMIA F Series CO? RF laser can be applied to SLS 3D printing technology, with power of 80W~100W. It adopts advanced RF power supply and Flat noodles waveguide design. RF power supply and cavity are all metal integrated packaging, with good thermal conductivity and thermal stability, high-quality spot mode and stable power output (≤± 7%).
RF laser application technology – SLS 3D printing technology
As an independent industry, the continuous development of laser manufacturing has made great changes in their matching with 3D printing technology.