Rapid Prototyping: Efficiency and Flexibility by Donghua
Donghua (DH) excels in rapid prototyping, enabling us to deliver samples within just 7 days without the need for tooling. Our rapid prototyping process is achieved by engraving resin sand layers to create sand shell molds.
Capabilities
Our facility houses two CNC engraving machines with engraving ranges of 6m x 6m x 2m, allowing us to produce samples within 3-7 days of receiving drawings. By eliminating the need for tooling, this process saves both time and money, making it ideal for low volume, large casting parts. We can produce castings using a diverse array of materials, including carbon steel, steel alloy, stainless steel, cast iron, brass, and aluminum, accommodating various material specifications.
Choose Donghua for rapid prototyping that delivers efficiency, flexibility, and exceptional quality.
Process
Step 1: Utilize CAD to design 3D models of molds and import the data into the engraving machine.
Step 2: Create sand shell molds by engraving resin sand layers using engraving machines.
Step 3: Assemble the two shell molds and pour molten metal into them.
Step 4: Break down the mold, remove the castings, and cut off the gating system using sawing machines.
Step 5: Grind and shot-blast the casting to achieve a smooth surface.
Experience the efficiency and precision of Donghua's rapid prototyping process for exceptional results.
Process Comparison
Manual Lost Wax Process
Steps
Time (hour)
Process Design
8
Tooling
72
Wax mold making
4
Shell making
8
Pouring
8
Cleaning
8
Heat treatment
8
Machining
8
Total Time
124
Rapid Prototyping
Steps
Time (hour)
Process Design
8
Shell mold engraving
24
N/A
N/A
N/A
N/A
Pouring
8
Cleaning
8
Heat treatment
8
Machining
8
Total Time
64
Compared to the lost wax process, rapid prototyping is a more efficient method for verifying and improving processes.