{"id":1634,"date":"2018-01-20T10:19:22","date_gmt":"2018-01-20T10:19:22","guid":{"rendered":"http:\/\/www.steelforging.org\/?p=1634"},"modified":"2021-03-25T02:47:30","modified_gmt":"2021-03-25T02:47:30","slug":"forging-company","status":"publish","type":"post","link":"https:\/\/www.steelforging.org\/?p=1634","title":{"rendered":"Forging Company"},"content":{"rendered":"

Forging, is one kind of metal forming processes that uses forging press to exert pressure on metal billet to produce plastic deformation to obtain certain shapes and dimensions.<\/p>\n

 <\/p>\n

History of Forging<\/h2>\n

Forging<\/a> and casting<\/a> are all the oldest known metalworking processes with long history. The art of forging and metalworking is found in human culture as early as 4,500 B.C. Traditional forging\u00a0process was operated by a smith using hammer and anvil, for iron parts by introducing water power. Until 12th century, large trip hammers or power hammers are used in forging process, which\u00a0greatly improved the production efficiency. Several centuries was taked before forging become industial metal forming process in a facility, which includes raw material, forging press, frequency\u00a0furnace, heat treating, machining workshop to produce metal components.<\/p>\n

Modern forging is operated with the workforce of forging presses or hammers mainly powered by electricity. The current forging process is open to produce complex shaped components in both\u00a0steel, aluminum and brass. With forging, no matter it is small or large, round or long, all dimensions are available.<\/p>\n

 <\/p>\n

Types of Forging<\/h2>\n

\"forging\"<\/a><\/p>\n

There are multiple options of hot forging<\/a>. There are basically three methods (or processes) to make a forged part: Open die forging, closed die forging and rolling forging. Open die forging and\u00a0closed die forging are the most two common drop forging processes that use pressure and temperature to modify material, but different uses of dies to form the metal.<\/p>\n

Open Die Forging<\/strong><\/p>\n

Open die forging is the forging process shaping a piece of metal between multiple dies while keep the metal in a open status that not completely enclose the material. The metal is worked at\u00a0temperatures ranging from 500\u00b0F to 2400\u00b0F and is shaped into the desired shape through hammering or pressing. Most of these forgings or made on flat dies, but V-dies, round swaging dies,\u00a0pins, mandrels, and loose tools are also used depending on the specific part.<\/p>\n

Open die forgings produce strong, durable parts in sizes that range from a few pounds to hundreds of tons. As a result, it is a favorable method to produce large and simple parts such as bars,\u00a0rings, blanks, hollows, and spindles. Open die forging is a great open forging process to obtain high strength large products.<\/p>\n

Closed Die Forging<\/strong><\/a><\/p>\n

Closed die forging, also named as impression die forging, is the forging type that uses pressure to compress a workpiece to final shapes under forging dies. In closed die forging process, several\u00a0types of impression dies may be used to form final desired shape. The type of material, tightness of tolerances, and need for heat treatment can determine the number of passes the product\u00a0requires through the dies. With closed die forging, we can produce all types of precision metal components.<\/p>\n

Most metal alloys can be forged via closed die forging process, among them: carbon and alloy steels, tool steels, and stainless, aluminum and copper alloys, and certain titanium alloys. Strain-rate\u00a0and temperature-sensitive materials (magnesium, highly alloyed nickel-based super-alloys, refractory alloys and some titanium alloys) may require more sophisticated forging processes and\/or\u00a0special equipment for forging in impression dies.<\/p>\n

Rolling Forging<\/strong><\/p>\n

Roll forging is a forging type that utilizes opposing rolls to shape a metal part. Even though roll forging uses rolls in order to accomplish the deformation of the material, it is classified as a metal\u00a0forging process and not a rolling process. More similarly to metal forging than metal rolling, it is a discrete process and not a continuous one. Roll forging is usually performed hot. The precisely\u00a0shaped geometry of grooves on the roll, forge the part to the required dimensions. The forging geometry of the rolls used to forge metal parts is only present over a portion of the roll’s\u00a0circumference. Only part of a full revolution of a roll is needed to forge the work piece. Typically in manufacturing industry, the forging geometry on the rolls may occupy from one quarter to three\u00a0quarters of the roll’s circumference.<\/p>\n

Roll forging manufacture is often used in the automotive industry to manufacture parts. Shafts of various geometries, knives, hand tools and leaf springs, are some products commonly\u00a0manufactured by this process. Parts created by roll forging possess superior mechanical properties than those produced from many other processes.<\/p>\n

 <\/p>\n

Materials of Forging<\/h2>\n

Steel<\/strong><\/a><\/p>\n

Steel is the main material type used in forging. We call this type of material as “forged steel”. According to the chemical composition of steel, steel used in forging can be classified as carbon\u00a0steel, alloy steel and stainless steel, among them, the forging ability of stainless steel is the worst for its bad metal liquidity. Forged steel is the right selection for its low cost in many applications.\u00a0Besides, forged steel has three times as strongth as aluminium although it is much heavier.<\/p>\n

Aluminum<\/strong><\/a><\/p>\n

Aluminum forging is the ideal soultion for applications where performance and safety are critical but a lighter-weight metal is needed for speed or energy efficiency. The challenging and harsh\u00a0environments in space necessitate structures that are strong and durable, but also lightweight. Forged aluminum\u2019s low density relative to steel makes it an ideal candidate for aerospace
\napplications.<\/p>\n

 <\/p>\n

Advantages of Forging<\/h2>\n