Casting: A method of smelting metal, making a casting mold, pouring molten metal into the casting mold, and obtaining a casting of certain shape, size, composition, structure and performance after solidification. There are pine, not dense, and not suitable for important parts; (casting does not have many advantages of forging, but it can produce parts with complex shapes, so it is often used in the manufacture of bearing parts that do not require high mechanical properties. For example, machine tool casings Wait.)
Forging: Under the action of forging equipment and tools (die), the blank or ingot is plastically deformed to obtain a forging with a certain geometric size, shape and quality. Dense, for important parts. (During forging, the metal undergoes plastic deformation, which has the effect of refining grains, and the cutting fibers are continuous, so it is often used in the manufacture of wool for important parts, such as shafts, tooth theory, etc.)
Comparison: Metals can improve their microstructure and mechanical properties after forging. After the casting structure is deformed by the forging method, due to the deformation and recrystallization of the metal, the original coarse dendrites and columnar grains become an equiaxed recrystallized structure with finer grains and uniform size, which makes the original segregation and recrystallization in the steel ingot. Porosity, pores, slag inclusions, etc. are compacted and welded, and the organization becomes more compact, which improves the plasticity and mechanical properties of the metal.
The mechanical properties of castings are lower than those of forgings of the same material. In addition, the forging process can ensure the continuity of the metal fiber structure, so that the fiber structure of the forging is consistent with the shape of the forging, and the metal streamline is complete, which can ensure that the parts have good mechanical properties and long service life. Forgings produced by precision die forging, cold extrusion, warm extrusion and other processes are unmatched by castings.
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Nicole
Company: Baoji Jimiyun Dynamic Co., Ltd
Cuntry:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 13369210920
Gmail:nicole@jmyunti.com
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