Bearings: New wisdom in traditional industries

What is cold forging, warm forging, and hot forging? What are the characteristics of each? What is the impact on precision machining?
⒈Hot forging: refers to the processing of the blank above the recrystallization temperature of the metal.

  • Reduce the deformation resistance of the metal, thereby reducing the forging pressure required for the deformation of the bad material, and greatly reducing the tonnage of the forging equipment;
  • Change the as-cast structure of the steel ingot. After recrystallization in the hot forging process, the coarse as-cast structure becomes a new structure with fine grains, which reduces the defects of the as-cast structure and improves the mechanical properties of the steel;
  • Improve the plasticity of steel, which is especially important for some high-alloy steels that are brittle and difficult to forge at low temperatures. It is suitable for a class of metal materials with large deformation resistance and poor plasticity at room temperature.

⒉Warm forging: the forging process performed within about the recrystallization temperature.
The purpose of the warm forging process is to obtain precision forgings. The advantage of warm forging is that it can improve the precision and quality of forgings without having the same forming force as cold forging. Suitable for small and medium carbon steel precision die forgings with complex shapes.

⒊Cold forging: refers to the processing of the blank above the recrystallization temperature of the metal.
Features: Cold forgings have good surface quality and high dimensional accuracy, which can replace some cutting processes.

Cold forging can strengthen the metal and increase the strength of the parts. It is suitable for aluminum and some alloys, copper and some alloys, low carbon steel, medium carbon steel, and low alloy structural steel with low deformation resistance and good plasticity at room temperature.

Jiaerda Machinery is mainly for precision processing on customized requirements, and our company can adopt reasonable and efficient processing technology according to the requirements of the drawings. The products processed by our CNC include: copper alloy parts, pump parts, submersible electric pump parts, precision machinery parts, auto parts, marine parts and other high-standard and high-quality products.