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Advantages and disadvantages of different forging processes for metal materials

Advantages and disadvantages of different forging processes for metal materials

Forging is defined as the forming or deformation of a metal in its solid state. Many forging is completed by upsetting process. In the upsetting process, the hammer or striker moves horizontally to press on the rod or the end of the rod to widen and change the shape of the end. Parts usually pass through successive stations before reaching the final shape. High strength bolts are "cold headed" in this way. Engine valves are also formed by upsetting.

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What are the common defects in castings?

What are the common defects in castings?

Castings are metal shaped objects obtained by various casting methods, that is, smelting good liquid metal. By using casting, injection, suction or spray casting methods in other pre prepared molds, and cooling through subsequent treatment after grinding, the metal castings obtained will form a certain shape, size and product performance.

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