3D Printing Technology Types

Additive manufacturing (AM), usually we call it 3d printing, uses computer-aided design to build objects layer by layer. It becomes more and more popular. There are several types of 3d printing technology that 3d printer use today: FDM,SLA,DLP,SLS,MJ,DOD,BJ,DMLS,etc.

1. FDM
Fused Deposition Modeling-FDM

It is the most popular 3d printing technology.

Material:

Thermoplastic filament(PLA,ABS,PET,TPU,PETG,Nylon,wood)

Dimensional Accuracy:

±0.5%(lower limit 0.5mm)

Best surface finish; full color and multi-material available; brittle, not sustainable for mechanical parts

Read more about FDM/FFF.

2. SLA/DLP
Stereolithography-SLA ; Direct Light Processing-DLP

Material:

Photopolymer resin (Standard, Castable, Transparent, High Temperature)

Dimensional Accuracy:

±0.5%(lower limit 0.15mm)

Smooth surface finish; fine feature details, brittle,not sustainable for mechanical parts

Read more about SLA.

3. SLS  

Selective Laser Sintering-SLS

Material:

Thermoplastic powder (Nylon 6, Nylon 11, Nylon 12)

Dimensional Accuracy:

±0.3%(lower limit 0.3mm)

Functional parts, good mechanical properties; Complex geometries

Read more about SLS.

4. MJ/DOD

Material Jetting-MJ; Drop on Demand-DOD

Material:

Photopolymer resin (Standard, Castable, Transparent, High Temperature)

Dimensional Accuracy:

±0.1mm

Best surface finish; Full color and multi-material available; Brittle, not suitable for mechanical parts

Read more about MJ.

5. BJ

Binder Jetting-BJ

Materials:

Sand or metal powder: Stainless / Bronze, Full color sand, Silicia (sand casting)

Dimensional Accuracy:

±0.2 mm (metal) or ±0.3 mm (sand)

Large build volumes; Functional metal parts;

6. SLM/DMLS/EBM 

Direct Metal Laser Sintering –DMLS; Selective Laser Melting -SLM;Electron Beam Melting –EBM

Materials:

Metal Powder: Aluminum, Stainless Steel, Titanium

Dimensional Accuracy:

±0.1 mm

Strongest, functional parts; Complex geometries

3d printing technology

3d-printing-technology-types

3D printing is popular nowadays. This is just a simple introduction of 3d printing technology, including FDM,SLA,SLS,MJ,BJ,SLM ,and so on.

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