Explanation

Use the silver head, anvil block or die on the forging and pressing equipment to apply external force on the metal billet to make it plastic deformation, so as to obtain the forming processing method of forgings with qualified size, shape and performance. The shorter the application time is called forging, and the longer the application time is called pressing. In the plastic forming of metallic materials, the earliest method is forging. The main equipment used for forging are steam hammer, electro-hydraulic hammer, flat forging machine and fast forging machine, etc. The main equipment used for pressing is press (hydraulic press, hydraulic press, crank press, friction press and screw press). According to the forging and pressing equipment and dies used, forging and pressing processes can be divided into hammer forging, die forging, die pressing, stamping, etc; According to the temperature of forging and pressing billet, it can be divided into hot forging, warm forging and cold forging.

Classification