Technical Paper
Use of Foam Plastics for Pattern-Making and Its Application to Tooling and Production Castings
1965-02-01
650433
The process discussed is available for use by engineers in design of prototype work and small run or high production castings. The purpose in the use of foam as a casting pattern is to reduce pattern and core box costs to a minimum when one-piece or low volume parts are required. It should always be considered when weldments are discussed. Additional advantages are apparent in the reduction of delivery time required for a finished casting. The pattern is produced in a positive form and thus allows the designer to see the actual size, shape, and design before it is cast.