Compare the Forging Process to Machined Steel Bar / Plate
This page discusses Machined Steel Bar and Plate compared to Forging - fatigue, stress, corrosion, machining, material grain pattern, grain structure, strength, ductility, resistance, flame cutting plate, rings, hubs, turning, grinding, polishing, surface irregularities, dimensional accuracy, machinability -
Queen City Forging - Custom Forging.
Compare Forging...
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to Machined Steel Bar/Plate
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| Broader size range of desired material grades. |
Sizes and shapes of products made from steel bar and plate are limited to the dimensions in which these materials are supplied. Often, the forging process may be the only metal working option available with certain grades in desired sizes. Forgings can be economically produced in a wide range of sizes - from parts whose largest dimension is less than 1 in. to parts weighing more than 450,000 lbs. |
| Grain oriented to shape for greater strength. |
Machined bar and plate may be more susceptible to fatigue and stress corrosion because machining cuts material grain pattern. In most cases, forging yields a grain structure oriented to the part shape, resulting in optimum strength, ductility and resistance to impact and fatigue. |
| Better, more economical use of materials. |
Flame cutting plate is a wasteful process - one of several fabricating steps that consumes more material than needed to make such parts as rings or hubs. Even more is lost in subsequent machining. Material cost savings can be significant, whether aluminum, steel or special alloy forging is applied. |
| Lower scrap; greater, more cost-effective production. |
Especially for near net shape forgings, better use is made of material, generating little scrap. In high-volume production runs, forgings have the decisive cost advantage. |
| Fewer secondary operations required. |
As supplied, some grades of bar and plate require additional operations - such as turning, grinding and polishing - to remove surface irregularities and achieve desired finish, dimensional accuracy, machinability and strength. Often, forgings can be put into service without expensive secondary operations. |