Metal Shouban manufacturers can use a variety of materials, the production process is relatively simple, no support structure, high material utilization.
3. Three-dimensional spray bond forming (3DP—3Dimension Printer)
3DP technology was invented and patented by MIT and commercialized by ZCORP. Since the technology was invented in 1994 and gradually entered the market, it has been developing rapidly in the past three to four years. The principle of this molding process is to send a certain amount of powder from the storage barrel, and then use the roller to send the powder on the processing platform with a thin layer of raw material, and the nozzle is sliced according to the 3D computer model to obtain the two-dimensional layer letter. Spray adhesive, stick powder. After finishing one layer, the processing platform automatically drops a little, the storage bucket rises a little, the scraper blade pushes the powder from the raised storage bucket to the working platform and pushes the powder flat. The adhesive is sprayed again, so that the desired shape can be obtained through this cycle. The commonly used ZCorp solid printing material is gypsum powder. This process is currently the only 3D printing process that can print full-color samples.
Use materials: powder materials, such as gypsum powder.
Accuracy: 0.013 ~ 0.1mm
The high speed of forming and the low price of the forming material allow the production of color prototypes. The powder plays a supporting role in the forming process and can be easily removed after the forming process.
4. Inkjet Technology Process (Ployjet)
Sliding back and forth along the X axis, an ultra-thin layer of photosensitive resin is placed in the molding chamber. After each layer is laid, the UV bulb on the edge of the nozzle frame immediately emits UV light to quickly cure and harden each layer of photosensitive resin. This step reduces the post-processing required to use other technologies. After each layer is printed, the molding chassis inside the machine sinks extremely accurately, and the nozzle continues to work layer by layer until the prototype is completed. Two different types of photosensitive resin materials are used for molding: one is a molding material for forming a solid part, and the other is a support material for supporting a part.
Use of materials: photosensitive resin polymeric materials
Print high-quality, high-detailed 3D models, shorten design cycles and reduce R&D costs, choose a wide range of materials, and easily remove support.
5. FDM—Fused Deposition Modeling
The key to the FDM process is to keep the semi-flow molding material just above the melting point (usually controlled at about 1°C above the melting point). The FDM nozzle is controlled by the CAD layering data so that the semi-fluid fuse material (generally the wire diameter is 1.5mm or more) is extruded from the nozzle and solidified to form a thin layer of outline shape. The thickness of each layer ranges from 0.025 to 0.762 mm, and the entire part model is formed by layering one layer at a time.
Raw materials used in FDM process: Thermoplastic materials such as ABS, PC, PLA, etc., with filamentous feed
System construction principle and operation are simple, maintenance cost is low, system operation is safe, can be directly used for lost wax casting, parts of any complexity can be formed, support removal is simple, and chemical cleaning is not required