What is metal forging?
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 weight from less than a kilogram to 170 metric tons.[1] Forged parts usually require further processing to achieve a finished part.
Forging is any process that deforms metal in a press in order to change the shape and the structure of the metal. Some forging is done hot, with the metal heated to fairly high temperature (“hot” depends on which metal you are talking about). Some forging is done cold. Some forging is done with hammers, some with shaped dies, some with closed dies so the metal comes out at or near the final shape you want. When metal undergoes the forging process, the internal structure of the metal is changed. This typically increases the strength of the metal so, in general, a forged part is stronger than a cast part.
Metal forging is the forming of metal in dies by gradual deformation. ie. A first stage will do an initial part of a shape, the next almost finishes it, and the last gives a finished metal product. This can be ether hot or cold forging. With hot forging, the metal is heated to red hot before deformation. Cold forging is used where the extra strength of cold worked metal is required with limited deformation available when cold working.
