Forgings are stronger. Casting cannot obtain the strengthening effects of hot and cold working. Forging surpasses casting in predictable strength properties – producing superior strength that is assured, part to part. Forging refines defects from cast ingots or continuous cast bars. A casting has neither grain flow nor directional strength and the process cannot prevent the formation of certain metallurgical defects. Pre-working forge stock produces a grain flow oriented in directions requiring maximum strength. Dendritic structures, alloy segregation, and like imperfections are refined in forging.
Custom Steel forging is commonly used in mechanical and industrial applications due to its strength, availability, and specialized alloys like stainless and carbon steel. Forgings in steel offer unsurpassed resilience for manufacturing parts that simply must not fail.
What is forging?
Forging is manufacturing process where metal is pressed, pounded or squeezed under great pressure into high strength parts known as forgings. The process is normally (but not always) performed hot by preheating the metal to a desired temperature before it is worked. It is important to note that the forging process is entirely different from the casting (or foundry) process, as metal used to make forged parts is never melted and poured (as in the casting process).
The forging process performed above the recrystallization temperature of the metal is called hot forging. Hot forging is also called hot die forging. During forging, the deformed metal flows violently, and the contact time between the forging and the die is long. Therefore, the mold material is required to have high thermal stability, high-temperature strength and hardness, impact toughness, thermal fatigue resistance and wear resistance, and easy processing. Light-duty hot forging dies can be made from low alloy steels.
Steel forging is an object to which a metal is subjected to pressure to shape the desired shape or compressive force through plastic deformation. In the process of forging steel forging, the forging step is the key. Today we will know the forging steps of die steel forgings.
First, it is necessary to draw a steel forging diagram and design the size and shape of the blank for each step. The blank design of each step is usually compared with some forgings, and then a simple volume calculation is carried out, combined with the judgment of the designer.
The difference between steel forging and cast steel is mainly reflected in the difference in the processing technology (forging and casting) of steel. Forging of steel forging is a plastic deformation process, while casting is liquid forming.
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