Use of the V-Process as a Rapid Prototype and Production Casting Technique

The need for converting 3-D models quickly into aluminum castings has found a new niche. The V-Process is unique as a form of sand casting in that the castings have a smooth surface finish and good dimensional accuracy. Moreover, the process does not require draft angles on the castings.

The advantages of this casting process are:

• Prototype castings in two to four weeks.
• Reduced design and CAD time due to zero draft pattern requirements.
• Easier and less expensive pattern construction.
• Reduction or elimination of machining operations.
• Close tolerances and good surface finish.
• Easy revisions to patterns.
• Quick turnaround using SLA or CNC machined patterns.
• Unlimited life patterns that can be used for both prototypes and production quantities.
• Wall sections as thin as .090 inch.
• Cost effective for prototypes and production quantities up to 20,000

Tooling or patterns for the V-Process are constructed of machined plastic or Sterolithography (SLA) models. All of these methods of producing patterns result in unlimited life patterns capable of supporting both prototype and production requirements.

Because of these advantages this process is an excellent choice for both prototype and production castings.