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3. Permanent molds
This term covers all metal tools used for direct molding of parts (figures 9 and 10 ).
These are mainly gravity dies, low-pressure and pressure dies for non-ferrous metals (Al, Mg, Zamak...), dies for casting castings, and dies (monobloc or in 2 half-parts) for centrifuging. These are generally complex tools, often highly automated, very costly, and only suitable for large-scale production.
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Permanent molds
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In Engineering Techniques
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