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steel forging


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Products/Minerals, Metals & Materials /Cast & Forged/Model no.: steel forgingProduct keywords: steel forgingPlace of origin: ChinaBrand Name: steel forgingPrice Terms: 2Minimum Orders: 0Payment Terms: T/TProduct description: In steel forging,the steel billet is placed in a die resembling a mold, which is attached to an anvil.Usually,the hammer die is shaped as well. The hammer is then dropped on the workpiece,causing the metal to flow and fill the die cavities.The hammer is generally in contact with the workpiece on the scale of milliseconds.Depending on the size and complexity of the part, the hammer may be dropped multiple times in quick succession.Excess metal is squeezed out of the die cavities, forming what is referred to as "flash".The flash cools more rapidly than the rest of the material;this cool steel is stronger than the metal in the die,so it helps prevent more flash from forming.This also forces the steel to completely fill the die cavity.After forging,the flash is removed.In commercial steel forging,the workpiece is usually moved through a series of cavities in a die to get from an ingot to the final form. The first impression is used to distribute the metal into the rough shape in accordance to the needs of later cavities; this impression is called an "edging", "fullering", or "bending" impression. The following cavities are called "blocking" cavities, in which the piece is working into a shape that more closely resembles the final product. These stages usually impart the workpiece with generous bends and large fillets.The final shape is forged in a "final" or "finisher" impression cavity.If there is only a short run of parts to be done, then it may be more economical for the die to lack a final impression cavity and instead machine the final features.Steel forging has been improved in recent years through increased automation which includes induction heating, mechanical feeding, positioning and manipulation, and the direct heat treatment of parts after forging.One variation of steel forging is called "flashless forging", or "true closed-die forging". In this type of forging, the die cavities are completely closed, which keeps the workpiece from forming flash. The major advantage to this process is that less metal is lost to flash. Flash can account for 20 to 45% of the starting material.That is why people use steel forging as their metal forming process. The disadvantages of this process include additional cost due to a more complex die design and the need for better lubrication and workpiece placement.

Closed Die Forging
Address:Zhenhai District
From:cn, Zhejiang, Ningbo

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