Optimization Of Die Forging Of Front Axle Beam

The front axle beam is the core part of the axle,which is the important parts of the car.The front axle beam is of the truck is difficult to shape since its complex structure and fluctuated cross section.At present,roll forging-die forging composite technology has been adopted extensively in production.However,the application of advantages of composite technology has be restrained by the problems such as materials filling defects,metal folding,short die life and so on.It is very significant to optimize the process for the improvement of the quality of the axle beam,the die life and economic benefits.At first,this paper analyzes the existing problems of the truck front axle beam using the beam of roll forging-die forging composite technology.,focusing on die forging forming part.under the conditions of roll forging process,the die forging process has been divided into three parts to finish the whole forming:bending+preform+final forging.Based on section method,the minimal flash and complex filling as targets,design the preform body of other steps by analyzing the especial sections(such as "work","T shape section).Besides,it also has probed deformation degree distribution,reduction of the forming force,improvation of the mold service life and so on.This paper,based on orthogonal test and finite element simulation,optimize the finish-forming process parameters.For improving the end forging quality,preform body structure and process parameters has to be selected accurately.After simulation and analyzation,the finish forging material has been improved obviously.This paper choose the section method to design the preform body of the axle.The reversal design method has universal meaning to increase the quality and service life of mold.Nevertheless,the universal design has to be discussed further due to its immature.