Important parts that bear impact or alternating stress (such as transmission spindles, gear rings, connecting rods, rail wheels, etc.) should all be processed with stainless steel forging blanks. Therefore, forging processing has been widely used in machinery manufacturing, mining, light industry, heavy industry and other industries. Forging is one of the main methods for producing blanks and parts in mechanical manufacturing, and is often divided into free forging and die forging.

Characteristics of stainless steel forging blanks

The precision requirements of stainless steel forging blanks are high, and the application of advanced processes and equipment can achieve less or no cutting. The metal material used for forging should have good plasticity so that it can produce plastic deformation without cracking under the action of external force. Among the commonly used metal materials, cast iron is a brittle material with poor plasticity and cannot 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. After forging, the structure and performance of stainless steel forging blanks are improved and enhanced. Forging can remove casting defects such as pores, shrinkage holes, and dendrites inside the metal ingot. Due to the plastic deformation and recrystallization of the metal, the grains of the blank can be refined to obtain a dense metal structure, thereby improving the mechanical properties of stainless steel forgings. When designing parts, if the force direction and fiber structure direction of the parts are correctly selected, the impact resistance of the parts can be improved.

Characteristics of forging

Forging has a high material utilization rate. Metal plastic forming mainly relies on the rearrangement of the relative position of the metal body structure without cutting the metal, and has a high productivity. Forging is generally performed using a press and a forging hammer, which is not suitable for stainless steel forgings with complex shapes. Forging is formed in the solid state. Compared with castings, the metal flow is restricted, and generally heating and other process measures are required to achieve it. Parts or blanks with complex shapes, especially parts with complex inner cavities, are more difficult to manufacture.