我們知道,在各种机械中不論是机床、或是汽車、火車、輪船等,都有好多零件由鍛工鍛出來的。就拿咱們鍛工車間來說吧!手裹拿的大錘、鉗子,幹活用的工具、模子,汽錘上的拉桿、砧子跟手把等也都是鍛出來的。可見鍛件在机械製造工業中是多麽普遍啊!為什麼呢?因為鍛件的質量比鑄件或直接用机械加工所得的零件要好得多,而且也可以節省金屬材料。現在我們來研究一下,怎样 We know that in all kinds of machinery, whether it is a machine tool, or a car, a train, a ship, etc., many parts are forged by forge workers. Take our forging workshop, for example! Hand sledgehammer, pliers, work tools, molds, hammer on the rod, anvil with the handle are also forged out. Why is forgings so common in the machine building industry? Why? Because the quality of forgings is much better than that of castings or parts machined directly, it also saves metal. Now let’s study and what