Editing Forging (section)

===Isothermal forging===
Isothermal forging is a process by which the materials and the die are heated to the same temperature (''[[wikt:iso-#English|iso-]]'' meaning "equal"). Adiabatic heating is used to assist in the deformation of the material, meaning the strain rates are highly controlled. This technique is commonly used for forging aluminium, which has a lower forging temperature than steels. Forging temperatures for aluminum are around {{convert|430|C|F}}, while steels and super alloys can be {{convert|930|to|1260|C|F}}.

Benefits:
*Near net shapes which lead to lower machining requirements and therefore lower scrap rates
*Reproducibility of the part
*Due to the lower heat loss smaller machines can be used to make the forging

Disadvantages:
*Higher die material costs to handle temperatures and pressures
*Uniform heating systems are required
*Protective atmospheres or vacuum to reduce oxidation of the dies and material
*Low production rates