SLA light curing 3D printing technology

Lost foam casting is a process that belongs to precision casting, also known as gasification mold casting, solid casting, and cavityless casting. The dimensional accuracy of this process is up to 0.2mm, and the surface roughness can reach Ra5μm to Ra6μm. It is hailed as “the new technology of casting in the 21st century” and “green engineering of casting” by the foundry industry.
Lost Foam Casting Process
The lost foam casting process is simply to make a melting and disappearing model from a fusible material. After the model is vaporized at high temperature, the molten metal is poured into it, and the shell is cooled to obtain a casting.
With the rapid development of 3D printing technology, combined with the application of computer technology, 3D design drawings of products are directly imported into the equipment, and casting prototypes can be directly obtained, which can be used to replace traditional wax patterns. From the structural design and process formulation of precision castings to the design and manufacturing of profiles, wax molding has brought great changes to the production of precision castings.
3D printed light curing (SLA) rapid precision casting applications
In traditional precision casting, which uses open-molded wax mold casting, wax molds require molds, and the production of small batches of complex parts faces high costs, long cycles, and difficulty in repeatedly modifying design verification. These problems will be changed in the use of 3D printing for rapid precision casting to achieve rapid production of castings.
What is: SLA3D printing fast precision casting?
SLA (Stereo Lithography Appearance) is a process with higher accuracy and better molding quality in the 3D printing process. It uses SLA light curing 3D printing technology to directly print resin molds instead of traditional casting wax molds for casting production. Dewaxing mold opening is a rapid prototyping technology that can simultaneously meet the precision and surface quality requirements of the foundry industry. It has a high success rate and is more environmentally friendly.
SLA light curing 3D printing
The technical principle uses UV as the light source and liquid photosensitive resin as the raw material. Under the control of the computer, according to the cross-section data of the three-dimensional graphics, the layers are proofed and printed layer by layer. The light-cured prototype used for precision casting must be made into a hollow shape. After printing, the uncured resin is poured out, a hollow shape is formed, the resin outlet is sealed, and then a wax casting system is installed to make the shell. The wall thickness of the evacuated prototype can be made into a 0.6mm thin sheet state, which is volatile and vaporized during firing, and can completely reach a state free of impurities. Is an ideal casting production process, suitable for high strength, large size, high precision parts casting production.
SLA light curing 3D printing technology
Advantages in precision casting applications
1. Make precision casting production more flexible, more adaptable, and more suitable for the rapid, high-quality, and complex requirements of modern industrial castings.
2. The application in the structural design and process formulation of precision castings provides an effective basis for the technical staff to design a more reasonable casting structure and determine a reasonable process plan.
3. Eliminates the process of making molds and wax patterns, which greatly shortens the manufacturing cycle.
4. Can produce any complex castings with good quality and high precision.
5. Relatively low cost, flexible design, clean and environmentally friendly, suitable for complex castings, etc., in line with the general trend of casting technology development in the new century, and has broad development prospects.www.cnwxyszj.com

Products

Aluminum alloy precision casting

Aluminum alloy precision casting

Stainless steel castings

Stainless steel castings