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What is metal forging in manufacturing?

forging

Forging is a manufacturing process that involves shaping metal into the desired shape using localised compressive force such as hammering, pressing or rolling. Forging is often the best method with which to manufacture crucial metal parts that need to be strong, are of custom sizes or have specific performance specifications. This is because it is usually the most cost effective way to produce the parts and provides the very highest quality. We explain the main ways metal parts can be forged. 

Impression die forging

Also known as closed-die forging, this method involves pounding or pressing metal between two dies (which are called tooling) that contain a pre-cut profile of the desired part so that when the tooling is removed, the metal is transformed into the required shape. This process is used when more complex shapes are needed. 

Open die forging

Open-die forging can produce parts from just a few pounds all the up to more than 150 tonnes. The desired part is shaped by hammering or stamping the material through a series of movements between multiple dies that do not completely enclose the metal. This forging process can produce a huge variety of shapes and sizes that have optimal structural integrity. 

Cold metal forging 

Most metal forging is done with hot metal but it is possible to do it with cold metal. Cold forging can encompass many different processes including bending, drawing, heading, coining, extrusion, punching and many more and can produce a variety of shapes. During the process a chemically lubricated bar slug is forced into a shaped die under extreme pressure thus taking on the desired shape. 

Seamless rolled ring forging 

This metal forging process involves punching a hole in a thick, round piece of metal and then rolling and squeezing or pounding it into a thin ring. It can produce rings that weigh less than 1 pound and up to 350,000 pounds and measure just a few centimetres up to more than 9 feet. 

The Advantages of forging 

  • Produces incredibly strong metal parts that can withstand directional, structural and impact stress
  • The parts produced are hard-wearing and will last for many years
  • Almost unlimited flexibility and versatility in terms of part size and shape
  • A cost-effective way to produce metal components 
  • Forging cycles are rapid – a typical forging is complete within 10-30 seconds
  • Can produce a huge range of shapes of various sizes using lots of different metals
  • This process produces very little waste and all trimmed flash and offcuts are recycled

Outsourcing metal forging to China 

Forging is a relatively dangerous process that needs strict health and safety rules and regulations as well as specialist machinery. Save yourself the stress and expense of setting up your own metal forging manufacturing and take advantage of the huge savings available by outsourcing to China. Partner with an experienced outsourcing company, such as China Outsourcing, to ensure the process is simple, quick and that you get the very best deal. 


To learn more about how outsourcing your metal forging to China can save you a significant amount of money and earn you high quality parts, contact China Outsourcing today on +44 (0)1202 606141