Investigation Rough Correct Rule Of Unclosed Cure Elongate Flange

In practice, rough part of unclosed curve profile flange was decided by trial-and-error procedures. It is not only time-consuming but also expensive. Based on the FEA, carried on the simulation of the flanging process in the computer.Find out the rough correct rule of unclosed cure elongate flange by the result in simulation.Modeling is the premise of the simulation. The quality of the model affects the the result of simulation.The model includeing CAD model and CAE model,In the CAD model, the main issue is the disposal of important features,and the problem is the model reflect the real circs of part.In the CAE model, the main issue is meshing technology.Some advices in flanging simulation was putforward, such as how to dominate the tendency of the mesh near the flanging line; How to unite the different mesh to form the mould mesh; How to reasonably assign the mesh size and optimize the parameter of the simulation and the rough dimension.Investigated rough correct rule of unclosed cure elongate flange when the flange line only includeing the cure.Find out the ringht shape of rough step by step based on the result in simulation,and found out parameter of the infection rough correct line.By change angle of flange cure, found out rule that parameter of rough correct line when chang the angle of flange cure;By change extent of flange board, found out rule that parameter of rough correct line when chang the extent of flange board.Investigated rough correct rule of unclosed cure elongate flange when the flange line includeing the cure and the straight line. Find out the ringht shape of rough step by step based on the result in simulation,and found out parameter of the infection rough correct line. By change angle of flange cure or extent of flange board., found out rule that parameter of rough correct line.Also investigated the length of flange line when side is't incline,and found out the rule that length of flange line accord angle of flange cure. According the investigation,it was some rule in rough correct rule of unclosed cure elongate flange,and master this rule is significance for reduce the times and make sure the shape of rough celerity,the result of research established foundation for after research.