Aerospace & Defense
Innovation and collaborative, synchronized program management for new programs
Innovation and collaborative, synchronized program management for new programsExplore Industry
Integration of mechanical, software and electronic systems technologies for vehicle systemsExplore Industry
Product innovation through effective management of integrated formulations, packaging and manufacturing processesExplore Industry
New product development leverages data to improve quality and profitability and reduce time-to-market and costsExplore Industry
Supply chain collaboration in design, construction, maintenance and retirement of mission-critical assetsExplore Industry
Integration of manufacturing process planning with design and engineering for today’s machine complexityExplore Industry
Visibility, compliance and accountability for insurance and financial industriesExplore Industry
Shipbuilding innovation to sustainably reduce the cost of developing future fleetsExplore Industry
Siemens PLM Software, a leader in media and telecommunications software, delivers digital solutions for cutting-edge technology supporting complex products in a rapidly changing market.Explore Industry
“Personalized product innovation” through digitalization to meet market demands and reduce costsExplore Industry
Faster time to market, fewer errors for Software DevelopmentExplore Industry
Remove barriers and grow while maintaining your bottom line. We’re democratizing the most robust digital twins for your small and medium businesses.Explore Industry
Siemens Digital Industries Software Vat Photopolymerization
Vat photopolymerization is a category of additive manufacturing (AM) processes that create 3D objects by selectively curing liquid resin through targeted light-activated polymerization. Stereolithography, the first AM process to be patented and commercialized, is a vat photopolymerization technique. Since the advent of stereolithography in the 1980s, vat photopolymerization has grown to also include continuous liquid interface production (CLIP), solid ground curing (SGC), and direct light processing (DLP).
All types of vat photopolymerization use special resins called photopolymers as the printing material. When exposed to certain wavelengths of light, the liquid photopolymers' molecules rapidly bind together and cure into a solid state through a process called photopolymerization. In most 3D printers that operate under the principles of vat photopolymerization, liquid photopolymer is held in a container or vat with the build platform partially submerged near the surface of the liquid. Using the information supplied by a CAD file, the printer directs a light source to selectively cure the liquid photopolymer into a solid layer. Then the build platform is re-submerged into the remaining resin and the process is repeated for the next layers until the design has fully printed.
Vat photopolymerization is known among manufacturers as a fast and very accurate AM process that can be used to print rather large models and prototypes (with an appropriately sized vat and build platform). However, photopolymers in general do not have robust structural characteristics, so the resulting parts are inherently more prone to degradation and deformation over time. Additionally, printed parts may require special handling or additional tooling depending on the process and polymers used - making vat photopolymerization prohibitively expensive for some applications.
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