SLS 3D printing is the ideal solution for producing functional products with complex geometries. The technology has very few design constraints when compared to other 3D printing technologies and is also suitable for of batch manufacturing. The laser is aimed automatically at points in space defined by a 3d model, binding the material together to create a solid structure .The process begins by spreading an initial layer of powder over the build platform. The cross-section of the part is scanned and sintered by the laser, solidifying it. The build platform then drops down one layer thickness and a new layer of powder is applied. The process repeats until a solid part is produced.
The most common material for selective laser sintering is
nylon, a popular engineering thermoplastic with excellent
mechanical properties. Nylon is lightweight, strong, and
flexible, as well as stable against impact, chemicals, heat,
UV light, water, and dirt.
The combination of low cost per part, high productivity, and established materials make SLS a popular choice among engineers for functional prototyping, and a cost-effective alternative to injection molding for limited-run or bridge manufacturing.
Fused Deposition Modeling (FDM) also known as Fused Filament Fabrication (FFF), is a quick and cost-effective way of producing parts out of thermoplastics. FDM is the most widely used 3D printing technology. It is suitable for the production of functional parts, Concept prototypes, form and fitment prototypes, Batch production.
SLA is best suited for applications where high detail or high accuracy is
required. Create high fidelity prototypes/
functional parts for medical, dental, Automotive, jewelry, casting, etc. Tough
Resin(Elastomers), High-Temperature Resin, are some of the most used materials
for SLA 3d printing.
Selective Laser Sintering (SLS) uses synthetic thermoplastic polymers, such as nylons. SLS is suitable for affordable batch production, complex geometries, or for producing strong parts. Parts produced using SLS are porous, and have decent mechanical strength. PA2200 is the most widely used material for this process.
Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM) are both used in the production of metal parts with excellent physical and mechanical properties. Suitable for Complex geometries of metal, creating Lightweight metal parts. A variety of superalloys/metals can be 3d printed using this process.
One of the fastest 3D printing technology, Polyjet is suited for realistic prototypes, and if high accuracy, smooth surface finish are important requisites. Polyjet can print in multiple materials and colors. Polyjet is mostly used for concept prototypes, not suitable for engineering applications or functional parts.
Multi Jet Fusion (MJF) is one of the fastest processes producing quality plastic parts with detailed features. The parts printed in MJF exhibit consistent mechanical properties, low porosity and are usually light grey in color. It's suitable for small batch production as an alternative to injection molding.