Finite Element Analysis Of Rotary Forging In Flanged Sleeve

Rotary roll is a new technology that applied in partly presswork succession plasticity forming. The cold rotary forging used in flanged sleeve is an advanced technique which used in flanged sleeve processing. It has a good many merits, such as high material utilization, high productivity, low manufacturing cost, high mechanical property, high service life and high forming dimensional accuracy etc. It widely applied in flanged sleeve processing.This thesis based on the research of the rotary forging in flanged sleeve. Finite element analysis is employed to research the process of cool rotary forging in differential flanged sleeve. The statuses of strain and stress, metal flow rule and force-time curve are obtained and reveal the deformation characteristic. And importantly, the influence of blanks on flanged sleeve was obtained.The flanged sleeve's rotary roll model has been created in three-dimensional molding software UG based on its prototype. The models which will be used in DEF0RM-3D have been gotten. They're the foundation of finite element analysis in flanged sleeve's rotary roll.The statuses of strain and stress, metal flow rule have been gotten based on the three-dimensional simulation software DEF0RM-3D by the use of rigid plasticity finite element analysis. And the deformation rulers have been gotten. The ideal blank have been gotten by simulation, and the ideal size of blank had been designed.The finite element simulation method is employed to change the processing parameter of rotary roll. The effect of feed rate of cavity die, friction factor and inclination of rotary head on die stress have been analyzed and discussed based on the manufacture experiences and finite element analysis. Force Contrastive curve in different processing parameter have been gotten. They reveal the concretion incidence of the rotary forging processing parameter.This paper analyzes the causes of defects in forgings and presents preventive measures.