Forging has been around since at least 4000 BC , it is believed that back in the day hand tools and weapons were among the first things to be forged, using metals and fire.
There are many different types of forging including open die forging, drop forging and hand forging.
There are many different terms used in forging, we have listed just a few to show you the vast range of terminology that you may come across when dealing with the forging process.
Alloy steel forging – made from steel containing extra alloy elements other than just carbon.
As forged – this is the condition of forging as it comes out of the finisher cavity.
Bender – a die impression or tool designed to bend forging stock.
Block – metal is progressively formed to a general desired shape.
Cast – reproduction of a die cavity.
Chop – a die forging defect
Double forging – a forging that is designed to be cut and used in two separate pieces
Draftless forging – Forging with zero draft on vertical walls
Edging – This is the forging operation of a working bar between contoured dies.
Extrusion – The process of forcing metal to flow through a die orifice
Finish forging – a conventional type of forging
Grain growth – increase in the size of grains of a metal or alloy
Gripper dies – clamping dies that are used in a mechanical upsetter or forging machine
Hammer- a machine that “hammers” a blow
Impression – A cavity machined into a forging die to produce configuration in the workpiece
Ingot – A casting intended for forging
Knockout – A mechanism for releasing piece of work from a die
Liftout – Also known in the forging trade as a knockout
Master block – a forging die block
Mill scale – The oxcide layer that forms during forging and heating
Open dies – Dies that are used for producing hand forgings