Forging is a basic process in which the work-piece is shaped by compressive forces applied through various dies and tooling. One of the oldest and most important metal-working operations, dating back at least to 4000 B.C., forging first was used to make jewellery, coins, and various implements by hammering metal with tools made of stone.
Parts that can be made with forging
Forged parts now include large rotors for turbines; gears; bolts and rivets; cutlery, hand tools; numerous structural components for machinery, aircraft, and railroads; and a variety of other transportation equipment.
Finishing Process in forging
Forgings generally are subjected to additional finishing operations, such as
heat treating to modify properties and machining to obtain accurate final dimensions and a good surface finish. These finishing operations can be minimized by precision forging, which is an important example of net-shape or near-net-shape forming processes.
Each of these will produce a part having different characteristics, particularly with regard to strength, toughness, dimensional accuracy, surface finish, and the possibility of internal or external defects.
Several other operations related to the basic forging process are carried out in order to impart the desired shape and features to forged products.
Coining
This is essentially a closed-die forging process that is typically used in the minting of coins, medallions, and jewellery. The blank or slug is coined in a completely closed die cavity. In order to produce fine details (for example, the detail on newly minted coins), the pressures required can be as high as five or six times the strength of the material. On some parts, several coining operations may be required.
Marking parts with letters and numbers also can be done rapidly through
Coining. In addition, the process is used with forgings and other products to improve surface finish and to impart the desired dimensional accuracy with little or no change in part size.
Heading
Also called upset forging, a heading is essentially an upsetting operation, usually performed on the end of a round rod or wire in order to increase the cross
section. Typical products are nails, bolt heads, screws, rivets, and various other fasteners
Piercing
This is a process of indenting (but not breaking through) the surface of a work-piece with a punch in order to produce a cavity or an impression. The work-piece may be confined in a container (such as a die cavity) or may be unconstrained.
Hubbing
This process consists of pressing a hardened punch with a particular tip geometry into the surface of a block of metal. The cavity produced is subsequently used as a die for forming operations, such as those employed in the making of tableware.
Forging-process is a forging directory where one can come and post their forging company and customers can look for the company suitable and available to them nearby and can contact them and choose the best forging company suiting their needs.
There are various blogs written on forging
•The Best method for doing forging.
•Comparison between hot and cold forging
•Forging defects companies must avoid.
•Casting vs Forging.
•Applications of Forging Process
And much more…