Forging is the term for shaping metal by using localized compressive forces. Cold forging is done at room temperature or near room temperature. Hot forging is done at a high temperature, which makes metal easier to shape and less likely to fracture. Warm forging is done at intermediate temperature between room temperature and hot forging temperatures. Forged parts can range in size from 2 cm to 170 metric tons. Forged parts usually require further processing to achieve a finished part.
The most common thought of forging equipment is the hammer and anvil. The principles behind the hammer and anvil are still used today in drop-hammer equipment. The principle behind the machine is very simple, raise the hammer and then drop it or propel it into the work piece, which rests on the anvil. The main variations between drop-hammers is in the way that the hammer is powered; the most common being air and steam hammers.
There is different type of forgings listed below.
Hot forging:
Hot forging is defined as working a metal above its recrystallization temperature. The main advantage of hot forging is that as the metal is deformed the strain-hardening effects are negated by the recrystallization process.
Cold forging:
Cold Forging is defined as working a metal below its recrystallization temperature, but usually around room temperature.
Upset Forging:
Upset Forgings is the term used to describe the gathering of metal over a given area and then subsequently formed in dies (or tools) to a required shape. Conventional methods of upsetting are electrical resistance and mechanical pre-forming. The process can be carried out at the end of the bar, both ends of the bar, or at any mid-division point.
Roll Forging
Roll forging is a process where round or flat bar stock is reduced in thickness and increased in length. Roll forging is performed using two cylindrical or semi-cylindrical rolls, each containing or more shaped grooves. A bar is inserted into the rolls and when it hits a stop the rolls rotate and the bar is progressively shaped as it is rolled out of the machine.
Drop forging
If it’s high strength and quality you need then Brooks Forgings can provide you with a drop forged solution. A cost effective method of manufacturing for all sorts of components from materials such as Carbon, Alloy & Stainless Steels as well as Complex Alloys and Aluminum and Brass.
Hand forging
Hand forging is not just a process used to make products from the past. Many low volume bespoke products are more cost effectively made by hand forging, due to the low set up costs. Another benefit is the superior grain flow and refining of the steels internal structure which comes from bending and working whilst hot. This means that products made using this method are stronger, more durable and longer lasting than fabricated, cast or machined components.
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