What is lost foam molding?

Lost foam molding is a foundry molding method made with a styrofoam foam pattern. Styrofoam foam models, which are prepared in special molds and printed in machines, are placed in the sand mold. The casting styrofoam model is made while the sand is in the mold. The foam melts and metal fills its place.

What are the lost foam molding stages?

Lost foam begins by heating the EPS material with steam or electricity to the desired shape. Foam models in the drying chamber are painted and dried. With the vacuum effect, both the preservation of the mold's form and the absorption of the gas formed by the melting of the foam during casting takes place.

Lost Foam Molding - IDEAL MODEL

LOST FOAM MOLDING

Patterns are made by foam material in these systems. While metal is poured into molds, foam evaporates. That’s why system is called “Lost Foam Process”. System is slower compared to green sand molding lines. Because there is no core used, complicity pieces and non-ferrous castings can be made easily.

This system has similarity to investment casting. Foam pattern pieces brought together and glued in order to create a cluster in investment casting. Then covered with ceramic. After ceramic gets harder, cluster is placed into flasks and supported with resin free sand.

Features:

Suitable and easy to complex part molding and castings.
One of the most significant feature is, it doesn’t need core or core sand when molding.
Provides design and weight advantages because of no draft angle in the pattern.
No need to add binder into the molding sand.
Molding sand could be re-used without reclamation with amount of %99.
Surface quality of casting is extremely good in such kind of molding method.
Due to high surface quality, grinding and finishing cost is lower.
Suitable to medium speed of production.

CORE ACTIVITIES

CORE ACTIVITIES

LOST FOAM MOLDING

Features:

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