Aluminum die-casting

Aluminum has found wide application in the modern world. This metal is characterized by light weight, ductility and ductility, which allows it to be used in many industries. The melting point is 660 ° C. In production, aluminum casting is often used, thanks to which all kinds of parts are manufactured.

Technological process

Aluminum has been melted for a long time. He easily acquires any
Form, so it is simply indispensable in the world industry. Today, many steel companies use high-pressure casting technology. It is created in a special chamber by means of a piston, which is pressurized with air, emulsion or oil, which accelerates the movement. The molten metal enters a high-strength steel mold at a speed of about 50 m / s, which ensures its absolute filling.

Aluminum die-casting under pressure has many advantages, including not only an increase in productivity, but also a high accuracy of the finished product. The technology is used to produce important parts in instrument making, mechanical engineering and aircraft construction.

Aluminum casting at home

An uncomplicated part of this metal can be done by yourself. Everything you need for this is found in the home workshop.

First of all, you need a box with a lid, where the molding earth will be stored. Casting of aluminum usually occurs using mixtures of sand and clay. For small parts, you can take ordinary silica. It must be sifted and poured into a prepared wooden box.

In the process, the following tools will be needed: a wooden spatula, tweezers, hooks, scalpels, brushes, brushes and a trowel made of high-quality steel and having a smooth surface.

Aluminum casting at home means pouring metal into molds. They can be made from a wooden box.

Form Manufacturing

The molding of the future part takes place in two moldings (frames). To make them,
You need to remove the bottom and lid of the box and saw it with a longitudinal saw in two different parts in height. In the resulting flasks, you need to drill two vertical holes on opposite walls and insert coke rods into them. When closing the box, the coke that protrudes from its lower part must enter the holes drilled in the upper frame. This allows you to accurately fix the flasks relative to each other.

If the aluminum mold is correctly prepared in the ground, a cavity must be obtained that will completely copy the molded part. It is made by pressing one side of the copy of the product into the ground of the upper flask, and the second - into the bottom surface. The frames must rest on a solid shield. A copy of the part can be made of wood or polystyrene.

The filling of the molding earth should be gradual. Each new layer should be well tamped, otherwise the sifted earth will not keep its shape. It remains to make several gas vents and insert a gate, through which molten metal will flow. Now you need to let the earth dry well.

Filling of aluminum in the mold

Before you finally assemble the form, you must carefully inspect it and
Make sure there is no clump of land. Casting aluminum will give an excellent result only if the groove will ideally repeat the product. The joint formed between the lower and upper flasks, it is recommended to cover with clay, so that the liquid metal does not pour over the edges of the depressions. After that, the top molding is superimposed on the bottom and fixed with coke.

Aluminum needs to be melted in a tin can, by placing it on a burning stove. When the metal ceases to stick to the poker lowered into it, it can be removed from the fire and poured into the mold through the gate.

After waiting for cooling, it is necessary to extract the part from the ground. Usually, after this, additional processing of the product is carried out, including cutting off excess projecting edges and grinding.

Casting aluminum is a very fun and rewarding process. Thanks to this technology, small parts can be manufactured independently, which will allow you to get pleasant emotions and save money.