What are the features of forged parts?
Compared to castings, metal can enhance its structure and mechanical properties through forging. The forging method involves hot processing that deforms the casting structure, leading to the recrystallization of the metal. This transformation changes the original coarse dendrites and columnar grains into an equiaxed recrystallization structure with finer and more uniform grains. Consequently, the original segregation and recrystallization in the steel ingot are compacted and welded, reducing porosity, pores, slag inclusions, and other imperfections. This results in a more compact structure and improves the plasticity and mechanical properties of the metal.
The mechanical properties of forgings are generally superior to those of castings made from the same material. Furthermore, the forging process ensures the continuity of the metal fiber structure, aligning the fiber structure of the forging with its shape, and preserving complete metal streamlines.
Risk factors and primary causes of accidents in forging production can be categorized into three types:
1. Mechanical injuries - including scratches and bruises caused directly by machines, tools, or workpieces.
2. Burns.
3. Electrical shocks.
Forging equipment exerts significant force during operation, such as crank presses, stretch forging presses, and hydraulic presses. While these machines typically operate under stable conditions, the force generated by their working parts is substantial. Even a common 100~150t press produces significant power. Improper installation or operation of molds can redirect force onto components of the mold, tool, or equipment itself. Installation errors or improper tool operation may result in damage to machine parts or cause serious equipment or personal accidents
