Metal Casting and Foundry Production Procedure – Whether you are aware or not, in the place where we live, there are many metal products that can be found around us. We can found it in the house construction or even in the kitchen’s equipment. It can be said that some metal products are always used in our everyday life. The present article will share with you about the metal casting. Let’s follow this writing.
Before going ahead, it is important to introduce the word casting. It is known as the process from which solid metal shapes are produced by filling voids in molds with liquid metal. Making casting needs at least six basic ways; pattern making, molding, melting and pouring, shakeout and cleaning, heat treating, and inspection.
The patternmaking is known as the process of producing the patterns. The pattern determines to cast form, while casting can be no better than the pattern from which it is made. In order to produce a good quality of casting, it is necessary that the pattern is carefully designed, constructed, and finished.
Metal Casting Procedure Is:
The word molding can be defined as the process of preparing a mold to receive molten metal. The process of molding shown two different forms: first called non-reusable. Based on suggestions, the repetition of using the reusable mold is allowed. The casting process does not break down. The mold during the metal solidification and cooling process. The second is named the reusable molds. This type is usually made from metal. Different from the non-reusable molds are temporary objects which are destroyed during the metal solidification and cooling process.
The next form is Melting & Pouring. Metal casting produces two categories from; ferrous ‘metals that contain iron’ and non-ferrous ‘metals that do not contain iron’. Ferrous alloys which contain steel, malleable iron, and gray iron. The non-ferrous alloys most commonly used in casting are aluminum and copper, however, the magnesium, nickel, and titanium-based alloys are sometimes used for specialized applications.
Shakeout and cleaning. The molten metal is decanted into the mold via a system of gates and risers. The casting is then released from the mold, or removed from a sand mold by shakeout. The gates and risers that deliver molten metal to the mold interior also fill with molten metal in the process. The metal within solidifies of the mold with metal in the gate and riser system, forming a single piece quickly after shakeout, metal from the gate, and rider system is still enclosed to the main casting body.
The Inspection and Heat treatment. Some castings are used in demanding industrial applications: they may need to maintain their exact shape in freezing temperatures, resist corrosion in a wet environment, or bear up under the immense weight. Heat treatment is applied to change the physical properties of metal to the specifications required.
The treating of heating entangles the use of heating and chilling, often to extreme temperatures, to reduce stress within a cast part, and modify the physical properties of the metal. The temperature must be checked accurately for reaching the desired physical properties.
See: 10 Welding Defects Causes and remedies.
That’s enough about the metal casting. The article has described the term and its basic types of making a casting. Hopefully, the explanation above can give you new insight.