Briefly explain how a compression molding press works and name the major components.

Expert Solution

Compression Molding is a process of molding in which the moulding material, is usually preheated in a open mould cavity. Compression molding is a high-volume, high-pressure process. The process employs thermosetting resins in a partially cured stage, either in the form of granules, putty-like masses, or preforms. IT is one of the oldest manufacturing techniques used for rubber molding.

It is suitable for molding complex, high-strength fiberglass reinforcements. Advanced composite thermoplastics can also be compression molded with unidirectional tapes, woven fabrics, randomly oriented fiber mat or chopped strand. The advantage of compression molding is its ability to mold large, fairly intricate parts. It is also a cost effective process.

There are four main steps for composite compression molding process:

A high strength, two parts metallic tool is created, installed and heated; that matches the dimensions required to produce the desired part.
The composite is formed (previously) into the shape of the tool. This helps to improve the performance.
The above said part is inserted in the heated mold, then compressed under very high pressure.
After the pressure is released, the part is removed from the tool along with any resin flash around the edges.

queen_honey_blossom answered 2 years ago

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