Forging vs Casting
It is quite obvious that there is difference between forging and casting operations. They are very important operations in manufacturing world. These two processes have make machinery, tools, shapes etc. Possible to work. Forging and casting are both done in manufacturing industries but have differences.
Casting is a process of heating metals to liquid/melt and pouring the molten metal into a cavity in order to take the shape of the cavity in every detail so as to produce an article called casting.
It is a very old process of producing any materials with desired shape. It has been in existence since 6000 year ago. Castings are used to produce complex shape that cannot be easily manufacture by other manufacturing process.
Casting is also used to make complex parts of any machine, they are done in automobile industries, railways, aeroscope, shipping etc. For producing different parts. Casting are used in electrical aspect in producing items like motors, generators, pumps, compressors etc.
Casting operations are also perform in hardware industries where production of plumbing pipes, joints, fittings, valves etc. There are still a lot of items produced with casting. In fact almost 90% of metal items are produced with casting. Read: Casting Processes
Forging is a manufacturing process in which metals are heated to some extend and compressed using external egencies like, hammers, rolls, press, or upsetting machine to obtain a specific shape.
Forging is used for different purposes and for specific reasons. It is used when an object needs greater strength, high tensile strength, high degree of surface finish, greater productivity, more reliability, greater dimensional accuracy, greater fatigue strength etc. Forging operations are also used when less complex object is needed and object with less weight.
Forging are commonly used in project like rail road equipment, small tools, automobile tools and parts, aviation industries etc.
here are some specific differences between forging and casting (forging vs casting)
- The metal material is heated until it completely melt in casting process while in forging operations the metal is heated below its recrystallization temperature.
- Casting have high compressive strength when compared with forging.
- One of the difference between forging and casting is that, Fatigue strength of casting are less while fatigue strength in forging product is high.
- The imperfection or directional defect improves in forging while in casting it sometimes deteriorate due to little mistakes.
- Items produced with forging operations is more reliable as compared with items produce with casting.
- Another great difference between forging and casting is that, forging provide greater tensile strength to the object than casting.
- Forging are less tedious as compared with casting.
- Forging don’t required secondary finishing but in casting secondary finishing are required to get the desired dimension.
- Forging object is more accurate than casting.
- Forging gives greater productivity than casting.
- In forging, less materials is waste as it requires no secondary finishing but in casting wastage of material is more as secondary finishing is required.
- High degree of surface finish is obtained in forging but not so in casting
- The cost of materials and production time is less in forging but in casting operations the cost and production tome is much.
And that is it for this article, difference between forging and casting. You can add to it via our comment box and easily answer the question below to know if the knowledge is attain. Thank for reading!
Question: In your understanding briefly describe forging and casting operations.