Modern additive casting technologies, such as sand 3D printing using Binder Jetting (BJ), are opening new horizons in the production and prototyping of parts. These technologies enable automated creation of casting molds and cores, significantly reducing the time and cost of manufacturing prototypes.
Patternless Casting Manufacturing (PCM) is an innovative approach that combines traditional sand casting with modern 3D printing methods. Sand casting with BJ technology allows for the creation of complex parts without the need for pattern tooling, which speeds up the process and reduces production costs.
Patternless casting is a breakthrough method that eliminates the need for traditional tooling. This approach not only accelerates the production of sand molds but also provides greater design flexibility and reduces material waste. BJ-based sand printing enables high-precision molds that are ideal for prototypes, custom parts, and short-run production.
One of the key applications of additive technologies is reverse engineering. Using 3D scanning and sand printers, it's possible to quickly create accurate digital models of existing parts and molds. This simplifies their restoration, reproduction, or further modification
No-bake process based on furan resin are widely used in sand mold and core making, providing excellent casting quality and dimensional accuracy. Combined with sand 3D printing, these processes enable the production of complex geometries and minimal wall thicknesses — crucial for prototyping and small-scale manufacturing.
The integration of additive technologies such as sand 3D printing drives the digitalization and automation of all stages of production. This is a key step toward "Industry 4.0", where the minimization of human intervention and end-to-end automation become major competitive advantages.
3D-печать – это сложный и многогранный процесс, включающий несколько ключевых этапов, каждый из которых играет важную роль в создании качественных объектов. Рассмотрим основные этапы 3D-печати: проектирование в САПР, предварительная обработка, печать и постобработка.
Stage 1: CAD Design
The process begins with creating a digital 3D model using CAD
(Computer-Aided Design) software. This model defines the part's geometry,
dimensions, and technical specifications. Engineers and designers use advanced
software to fine-tune every detail of the model to ensure it meets all
production and functional requirements.
Stage 2: Pre-Processing
After the CAD model is ready, it undergoes pre-processing. This
includes preparing the model for printing by slicing it into layers and
generating instructions for the 3D printer. This step is critical to ensure
optimal print quality and minimize risks during the build.
Stage 3: Printing
This is the core of the process, where the physical part is
created. The printer deposits material layer by layer to build the object.
Depending on the technology and application, materials such as sand, metal,
plastic, or ceramics can be used. BJ technology uses powdered sand and a
binding agent to form highly detailed and durable casting molds.
Stage 4:
Post-Processing
Once printing is complete, the part goes through post-processing to
enhance its properties and surface finish. This may include cleaning, support
removal, surface smoothing, hardening, or other finishing operations to ensure
the final product meets all required standards and specifications.
