SLA vs FDM: Choosing the Right 3D Printing Technology
MessaggioInviato:sab dic 23, 2017 5:47 am
What is SLA ( Stereolithography)3D Printing?
SLA, or Stereolithography, is a 3D printing technique that employs a laser to harden liquid resin to build molds, prototypes, or patterns a single layer at a time. This process has been in use for many years.
What projects is SLA a good choice for?
SLA 3D printing can be useful for projects requiring a high level of accuracy and fast turnaround time. The only downside of this process is that 3D models created using SLA are often not as strong or as durable as finished products will be, making it harder to test out part functionality prior to the start of full production. Color options are also somewhat limited in comparison with FDM. 3d printing in mumbai,pune,maharashtra,delhi ncr,india
When is FDM 3D Printing the Right Choice?
FDM, or Fused Deposition Modeling, printing operates by extruding plastic through a nozzle, layer by layer. It is very flexible in its applications. Plastic prototypes created using this method will begin to harden immediately. Fused deposition modeling has many of the same characteristics as SLA, but can be used with many different materials and colors and can create prototypes that are as strong and durable as the finished parts will be. Most FDM printers use standard filament rolls in one of two standard sizes.This makes FDM 3D printing a good option for those wanting to test a part's functionality and use prior to large-scale injection mold manufacturing.
Be sure to take a look at our section regarding 3D Printing and Rapid Prototyping.
ABS plastic (Arcylonitrile Butadine Styrene)
3D Printed ABS properties:
Part of the thermoplastic polymers family, this material is primarily used as filaments in FDM or FFF 3D printers that use material extrusion for its manufacturing process. Its advantages are its lightness and impact strength. ABS plastic can resist to temperature up to 200°C (392°F). In certain cases, ABS is biocompatible.
3D Printed ABS applications:
As FDM doesn’t create parts as strong as more industrial 3D printing techniques like SLS, ABS is mostly used for prototypes, and aspect parts.
PLA (Polyactic Acid)
3D Printed PLA properties:
PLA is a fully biodegradable thermoplastic that uses cornstarch as its special raw material. Using the technology of FDM, this vegetable-based material is slightly more fragile and less durable than other 3D printing materials.
3D Printed PLA applications:
As it has limited durability, Polyactic Acid is mostly used to create decorative objects without mechanical constraints.
After plastics, resin is the most used material in 3D Printing particularly for the superior printing quality and maximum resolution which make resin is one of the excellent material for the professional applications. Resin materials use the multi technologies of SLA, Digital Light Processing (DLP), MultiJet or CLIP technologies to obtain fully creation of a 3D model.
High detail resins
Models that use this material are constructed from a photo polymeric liquid. This material is apt for models that require fine detailing and are small.
Models that have been constructed using this material have a very smooth surface and are beautifully painted.
Models are made of hardened liquid so the material is very strong, hard, stiff and water resistant by nature. This makes it an ideal material for 3D models. This material is suitable for models that require a smooth surface along with a transparent look.