How to forge stainless steel forgings?

The precision of rough or stainless steel forgings is higher. The application of advanced technology and equipment can achieve little or no cutting.
The metal materials used in forging should have good plasticity, so that under the action of external force, plastic deformation can be produced without rupture. Among the commonly used metal materials, cast iron is brittle material with poor plasticity and can not be used for forging. Copper, aluminum and their alloys in steel and non-ferrous metals can be machined under pressure in cold or hot states.
Improve the internal structure and mechanical properties of stainless steel forgings. Stainless steel forging blank after forging processing, its organization, the performance is improved and improve, forging processing can remove the inside of the metal ingot casting defects such as blow hole, shrinkage cavity and dendritic crystal, and as a result of the metal plastic deformation and recrystallization, can make the rough grain refinement, get the dense metal organization, so as to improve the mechanical properties of stainless steel forgings. In the design of parts, if the force direction and fiber organization direction of parts are selected correctly, the impact resistance of parts can be improved.

High utilization rate of materials. Metal plastic forming mainly depends on the relative position of the metal body tissue rearrangement, without the need to cut the metal.
Higher productivity. Forging processing is generally the use of press and forging hammer for forming processing.
It is not suitable for stainless steel forgings with complex shape. Forging is formed in the solid state, compared with casting, metal flow is limited, generally need to take heating and other technological measures to achieve. It is difficult to manufacture the parts or blank with complex shape, especially the parts with complex inner cavity.
Because forging has the above characteristics, so bear the impact or alternating stress of the important parts (such as transmission spindle, gear ring, connecting rod, rail wheel, etc.), should be made of stainless steel forgings blank processing, so forging processing in machinery manufacturing, mining, light industry, heavy industry and other industries have been widely used. Forging is one of the main methods for the production of blank and parts in machinery manufacturing. It is often divided into free forging and die forging.