最近,已研制成功用金属废屑热压制成锻件,如法兰、凸缘、轴套、垫环、杯形及盘形等复杂零件,这是一种少无切削及充分利用能量的先进工艺方法。这种方法类似于粉末冶金,即在闭式模具中热压金属碎屑成99％理论密度的基础上发展起来。但在原材料的形状上 Recently, hot forging has been developed using metal scraps to produce forgings such as flanges, flanges, bushings, grommets, cup-shaped and disc-shaped complex parts that are less advanced and less energy intensive Process method. This method is similar to that of powder metallurgy, developed on the basis of a theoretical density of 99% of hot press metal scrap in a closed mold. But in the shape of raw materials