At present,the cold rolling mill market is mainly composed of two-roll conical roll type and three-roll circumferential with the round roll type mill.The two-roll tapered roll type cold rolling mill has the advantages of large pass deformation and high production,but low product accuracy.Three-roll circumferential roll type cold rolling mill has the characteristics of high rolling accuracy,but the pass deformation is small.So,a new three-roll pilger surface configuration design method is constructed by combining the traditional two-roll tapered roll design method with the three-roll circumferential homocircular roll section design method,which is used to solve the defects of low precision of traditional two-roller conical roll cold rolling mill products.By comparing the roundness,rolling force,three-way stress,residual stress,rebound and so on,it is concluded that the tube rolled by the new three-roll Pilger heterosexual surface configuration is better than the tube rolled by the two-roll tapered roll configuration.
关键词
皮尔格轧制/冷轧成形/三辊轧制/辊型设计
Key words
Pilger rolling/cold roll forming/three-roll rolling/roll design