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Professional 3D Printing Service

SLS (Selective Laser Sintering)

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The Introduction Of SLS 3D Printing

Selective Laser Sintering (SLS) technology was invented by C.R. Decherd of the University of Texas at Austin.It is one of the 3D printing technologies with the most complex forming principles, the highest conditions, and the highest cost of equipment and material. However, it is still the most far-reaching technology to the development of 3D printing technology.

Here's how it works.

This is how it completes model production. The powder material is sintered layer by layer at high temperature under laser irradiation, and the computer controls the light source positioning device to achieve precise positioning. By repeating the process of laying out powder and melting where needed, the parts are built up in the powder bed

Advantages

  • Simple manufacturing process: This process can directly produce prototypes, parts and tools of complex shapes according to different materials.
  • No extra support: SLS does not need a support structure, and the suspended layer that appears during the stacking process can be directly supported by the unsintered powder.
  • Excellent mechanical properties: SLS technology uses polymer plastics such as nylon, so the printed parts usually have good mechanical properties, temperature resistance and chemical resistance. In addition to research and development testing purposes, they can also be directly used in final products.
  • High molding efficiency. Since SLS technology does not completely melt the powder, but only sinters it, the manufacturing speed is fast.
  • High material utilization rate: Because there is no need to support and add a base, it has the highest material utilization rate among several common 3D printing technologies.

Disadvantages

  • High equipment costs and maintenance costs: Due to the use of high-power lasers, own equipment, a lot of auxiliary protection process and the overall technical difficulty, manufacturing and maintenance costs are pretty high.
  • Surface quality is not high: Strictly speaking, the surface of the prototype is powdery, so it can not meet the requirements of customers who pursue high-quality surfaces.
  • Prototypes

    Prototypes

    Process standard plastic with functional prototypes.

  • customized

    customized

    Support parts, such as jigs, fixtures and other customized products.

  • batched

    batched

    Small batch
    production.

Industries with SLS 3D Printing

Aerospace Unmanned Aircraft / Art Craft / Automobile / Automobile Parts / Household Electronic / Medical Assistance / Motorcycle Accessories

Automobile
Aut omobile
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Household Electronic
Household Electronic
Motorcycle Accessories
Motorcycle Accessories
Art Craft
Art Craft
Medical Assistance
Medical Assistance
Automobile Parts
Automobile Parts
Unmanned Aircraft
Unmanned Aircraft

Post Processing

The models printed with nylon are usually available in gray and white, but we can dip-dye them into different colors according to customers' requirement.

  • Exquisite Processing

    Exquisite Processing

  • Chromating

    Chromating

  • Dyeing Treatment

    Dyeing Treatment

  • UV Processing

    UV Processing

  • Read More

SLS Materials

SLS materials are quite extensive. Theoretically, any powder material that can form interatomic bonding after heating can be used as SLS molding material, such as polymers, metals, ceramics, gypsum, nylon, etc.

90% of the materials used in SLS on the market are nylon, so people usually think that nylon is the material of SLS. Commonly used nylon materials are PA12 and PA12+GF.

90% of the materials used in SLS on the market are nylon, so people usually think that nylon is the material of SLS. Commonly used nylon materials are PA12 and PA12+GF.

SLS Model Type Color Tech Layer thickness Features
Chinese Nylon-Black Chinese Nylon PA 12 White/Grey/Black SLS 0.1-0.12mm High strength & strong toughness
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