某机机头罩环圈是生产中的一项关键零件。多年来采用传统的拉深工艺加工,存在着不少缺点。某厂曾试验过用爆炸直接成形,再车内外形的方法,但由于存在一些困难也未投入生产。几年来,通过大量试验,机头罩环圈采用厚鈑强旋和厚鈑预制坯强旋已经获得成功,并通过了中批量的生产考验。实践证明:该类型零件采用强旋法成形不但是可行的,而且具有明显的技术经济效果。 A machine hood ring is a key part in production. Over the years the use of traditional drawing process, there are many shortcomings. A factory has experimented with the explosion directly formed, then the car inside and outside the method, but because of some difficulties have not put into production. Over the past few years, through a large number of tests, the hood ring with thick sheet metal strong spin and thick sheet preform strong spin has been successful, and passed the batch production test. Practice has proved that: this type of parts using strong spin forming is not only feasible, but also has obvious technical and economic effects.