Views: 100 Author: Site Editor Publish Time: 2020-10-13 Origin: Site
In the production of castings, sand mold casting is a commonly used casting process. Casting is one of the metal processing methods. It is a metal processing method in which liquid metal alloy poured into a casting cavity suitable for the shape of the part, and then it is cooled and solidified, a metal part blanks with a certain shape, size, and performance is obtained. However, the more complex the structure and shape of the casting, the more troublesome the mold shape is.
Rapid prototyping technology makes the difficulty of the casting forming process independent of the complexity of the physical solid shape to be formed. Therefore, many modeling tasks of today's sand molds must be completed with 3D printers. This valuable technical feature makes it best to adapt to the competitive environment of the contemporary manufacturing market and develop rapidly.
Nowadays, the very hot additive manufacturing technology (often referred to as 3D printing technology) is a breakthrough in manufacturing principles. It does not require special auxiliary tools, is not limited by the size of the casting, and can quickly transform from a CAD 3D model to a 3D solid model. The cost of the product has nothing to do with the structure of the part and is especially suitable for the manufacture of complex parts with internal structure. And the manufacturing flexibility is high, and one machine can manufacture sand casting parts of various shapes.
The rapid prototyping technology only needs 30%-50% of the labor-hours of traditional processing methods and 20%-35% of the cost to manufacture sand casting samples or molds. 3D printing sand casting has been applied in the fields of machinery, electronics, automobiles, aviation, and aerospace. With the improvement of this technology, it has brought a revolution to the manufacturing industry.
3d prototyping technique is applied for sand casting, investment casting, ceramic precision casting, and plaster precision casting. Direct 3D printing of sand molds eliminates the need for traditional process models, and accurately controls the accumulation process of modeling materials according to the geometric information of the mold CAD model (including process information such as the gating system), and directly manufactures the mold.
The mold for industrial parts is made up of a whole set of assembly splicing and assembly.
This whole set of molds can be completed by 3D printing technology. In the CAD file of the 3D printer, a complete set of molds are "lay flat" on the printing table.
Since the molding cylinder of the sand 3D printer has ample space, to save costs, engineers import many model files before printing. So every time before printing, the model data looks densely packed.
Unlike common desktop 3D printers, a sand 3D printer is quite large.
The process of 3D printing is to first spread a layer of sand, cure it with an adhesive, and then stack it layer by layer. The material of the sand mold is quartz sand. Since resin is used to bond the sand materials together, this kind of sand is also called resin sand. The layer thickness of the resin sand material is 300 microns.
After the printing is completed, cleaning and pickup are required.
Save time: short delivery cycle.
Cost-saving: No tools needed to build.
The quantity, shape design, and modification flexibility are high.
Any geometric shapes can be cast.
The complex core can be built as a whole and accurately recreated.
Size: from small parts to 2000 x 1000 x 1000 mm.
Compared with traditional mold making, there is no storage and maintenance cost.
Any mixed manufacturing method and combined with traditional craftsmanship.
Parts/reverse engineering.
Yifei Machinery is an China casting manufacturer and supplier specialized in customized die casting, precision investment casting, sand mold casting and china forging service. We have the capacity to handle both large and small volume runs. Yifei is specialized in manufacturing and supplying a variety of ferrous & non-ferrous castings, utilizing sand, investment, die and permanent-mould process with grades of materials covering steel, stainless steel, bronze, copper, ductile iron, gray iron, aluminum & its alloys etc. Contact us for more details.
