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Metals, in industries, like manufacturing, construction, aircraft and automotive play a crucial role. A highly ductile form of metal is needed by these sectors for manufacturing of various necessary units like cars, transport and any other significant units. For this reason, forging has become a crucial process in extrusion of metals.

Forging is a method which is carried for forming or molding of metals. It's done through a number of techniques that are different for different metals and are used based on their temperature. Various lubricants are used for performing this process and most common of them are MoS2, graphite, synthetics, and glass. Glass lubricants for forging process are used as they're extremely brittle even at higher temperatures. Therefore, for this reason these glass lubricants are used in hot forging technique that's done at a temperature of 1300 degrees Celsius and is later reduced to 750 degrees Celsius.

During this method, a forged glass coating is formed over metals that are water based and lead free. This glass coating is inculcated with extremely high lubrication and heat insulation properties. So, they are used for forging of some certain alloys of metals like titanium, stainless steel, tungsten, and nickel. A few of the advantages that make this process essential as a forging lubricant for aircraft industry are as follows:

- This method prevents oxidization of metals which has undergone forged method. So, it helps the structures prepared from those metals to remain in its initial shape and prevents their reaction with oxygen.

- This is a fantastic lubricant as it takes the form of plastic at higher temperatures.

- Most importantly forged glass is the only lubricant that can bear so much high temperature without losing its technical characteristics.

A general forging process used in aerospace industry is seamless ring rolling forging. In this technique a hole is punched in thick, piece of metal which makes its shape like a donut. After this those pieces are drawn under rolling & squeezing process into a ring. The diameter of ring varies according to the amount of metal to be forged.

These seamless rings rollers could be either flat or cylindrical in shape. The height of those configurations varies between half inches to 9 feet. All this are dependent on the instruments used and according to it wall thickness and height are proportioned. The common proportion range is 1:16 at the base and 16:1 at the top, but this can differ in case of special processing's.

Forging process is vital for rising ductility and tangential strength of metals that make them appropriate for parts that are resistant to pressure like engines for aircrafts, couplings, gears, rotor pacers, cases and sealed discs, pressure vessels, wheel bearings, valve bodies & flanges.

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