The article has described substance, characteristic, methods and die types of flasless die forging technology, and it has list the typical die construction figures of flasless die forging.
叙述了闭式模锻工艺的实质、特点、方式及模具型式，列举了典型的闭式模具结构图。
2
The article has described substance, characteristic, methods and die types of closed extrusion-die forging, and it has enumerated the typical die construction figures of closed extrusion die forging.
叙述了闭式挤锻的实质、特点、方式及模具型式，列举了典型闭式挤锻模具结构图。
3
This paper introduces characteristic of cross rolling technology and its application in forging products of left continuous motion stem on automobile.