Large Flange Hot Bending Research

Large flange has a wide range of applications as seal and fastening connection inaeropace and military and wind power.Adopting new technologies and new techniques is aimportant measures to improve product quality and save energy cost reduction.There are two kinds of the traditional large flange forming tehnology,Integral forgingforming and Roll expansion forming.The feature of the former is time-consuming,poorquality of product,low pass percent and large energy consumption.The latter si a complexprocess and low yield,covers an area of big,energy consumption.In view of the existing technology exists some problems, The paper aims to provide alarge flange forming equipment and molding process,to avoid these shortcomings inreaching the objective of forming a billet heating.Firstly Through consulting relevant data and patent technology and the designmethod of some bending roll machine to design a large flange hot bending roll machinestructure.The design provides the parts of the large flange bending roll machine and theconcrete implementation way.Secondly Analyzing the process of bending roll byDEFORM, a finite element analysis software. the rotating table hot bending roll flangeforming and the force of In the process of roll bending was analyzed. Analyzed theinfluence factors of bending roll conditions, and the factors of different process parameterson the influence of bending roll force, After bending roll specimens of cross section shapemachine change rule,The change rules of specimens’ cross section shape was bendroll,After that, Giving the suggestions for the late finishing. Finally With three rollbending plate method to simulate the large flange forming process,The research emphasison changing the three bending roll relative position to solve the shortcoming of blank headto tail cannot bend, tries to increase the utilization rate of material.