Finite Element Structural Analysis Of Aluminum Powder Forged Connecting Rod

As the important part of transferring power in engine, connecting rod is subjectto alternating load generated by a variety of complex and periodic tension, pressureand inertial force, have poor working conditions. Therefore, to meet the connectingrod requirement is the focus of engine research and improvement process. Thus themain request of designing the connecting rod is to reduce its mass as much as possibleaimed at protecting environment and conserving energy in the assurance of sufficientstrength, stiffness and stability.Powder metallurgy (P/M) is a type of material and energy conservation, lessinvestment, no pollution, no cutting, efficient metal forming process suitable for massproduction, but also the manufacture of the weight of special metal materialstechnology.Powder forging is manufactured using traditional pressing and sintering method,and then the porous perform billet forging into the final shape of the dense.In this dissertation, the connecting rod of powder forging is studied. In this study,the assembling model which contains piston pin, bush, crank pin, bearing shells andconnecting rod bolt, is built with the Pro/E. Then meshing in H y p e r m e s h. The loadand boundary conditions were determined and the stress was calculated withABAQUS software.From the figures of stress，max tension lies in the notch transitionpart between big end and body and max pressure lies in the transition part betweensmall end and body.Through calculated the safe coefficient, the safety was discussed of connectingrod. The rod made with Powder forging is better in mechanical and technologyproperties.From finite element calculate and analysis，the conclusion that the powderforging rod has tremendous development space.Otherwise, the paper still makes use of finite theory carried on stress analysis tothe bolt and recognized the bolt satisfies an operate request at the performancepreparing tight force under the action.