Stereolithography – SLA ®

STEREOLITHOGRAPHY OR SLA® IS A 3D PRINTING MANUFACTURING PROCESS THAT GIVES ACCURATE MODELS, COMPRISING FINE DETAILS AND A SMOOTH SURFACE ASPECT

Stereolithography enables the manufacturing of accurate prototypes and complex forms from photosensitive resins.

APPLICATIONS

  • Validating a design
  • Testing ergonomics
  • Marketing presentations
  • Master models for vacuum casting
  • Model for bellows
  • USP VI medical applications

OUR ASSETS

  • Technological intelligence
  • Professionals on hand
  • Technical expertise
  • Submission of proposals
  • ISO 9001 Certification

27200 parts produced in 2016

Wide range of resins

Our epoxy resins

MANUFACTURING PROCESS

Before printing, a 3D digital file is obtained via CAD software. This file, in STL format, is transmitted to the machine where a second software cuts a model in several layers of material with a fixed thickness.

Laser process

The model is formed of successive layers of photosensitive epoxy resin under the action of an ultraviolet laser.

The laser beam sweeps the surface of liquid resin depending on the 3D digital model transmitted to the “printer”. Once one layer of the material has solidified, the platform drops to the value of the thickness of the following layer and a new section is solidified. In this way, there are as many cycles as necessary layers so as to obtain the full volume of the part.

Manufacturing cycle

  • Polymerization of the layer (the resin hardens)
  • Lowering of the platform, equal to the thickness of a layer (e.g.: -0.15mm)
  • Re-coating = Applying an even layer of resin on the entire work surface
  • Polymerization
  • Repeat…