Another approach to iron casting: the permanent mold process.
Modern Casting › Vol. 86 Nbr. 11, November 1996
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Another approach to iron casting: the permanent mold process.
Some foundries, particularly those overseas, have challenged paradigms and are exploiting FPM's niche advantages for iron castings.
The ferrous permanent mold (FPM) process was patented by Eaton Corp. in 1932. Although this method of pouring molten iron into an iron or steel mold was born on U.S. soil, the process has been more widely embraced overseas. In Europe, for example, 6-8% of all iron castings are made in FPM, and the growing use of the process is also seen in China, Japan and India. The FPM casting process is predominantly a mass-production method that becomes cost-effective only when used for properly selected parts. Matched with the proper casting design, there are definite advantages in cost, quality, energy reduction and environmental issues. Advantages In addition to superior casting finish and dimensiona...See the full content of this document
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