چکیده مقاله
Radial forging is a forging process in which one or two punches move axially causing a radial flow into a die cavity by means of which a flange is formed This process is used in producing of pulley and gears on a shaft In this study radial forging process is simulated by a 2D finite element method FEM on a produced laboratory specimen AL 6061 and the benefits of FEM simulation such as time and cost saving is scrutinized The effective parameters for this forging process are die corner radius R , ring gap height H , friction factor m , work hardening coefficient n , die clearance and the speed of the punch The effects of these parameters on the flange thickness ratio h/H , the outer protruding shape ratio D/D0 , effective strain, warping and reaction force are also investigated and results were compared with experiments and theoretical results to confirm the accuracy It is shown that when the corner radius is larger, the outer protruding shape ratio D/D0 is smaller, and vice versa and when the height of gap is larger the effective strain distribution is homogeneous and flowing of material is easier By increasing of friction factor the flowing of material becomes nonhomogeneous and D/D0 becomes smaller Punch speed has limited effects on strains Increasing die clearance has slight effects on reaction forces
کلیدواژهها
نویسندگان
M Sabeghi
Iran University of Science and Technology, Tehran ,Iran
F Javanroodi
Iran University of Science and Technology, Tehran ,Iran
شیوه ارجاع
Sabeghi, M and Javanroodi, F,1384,Analysis of the effective parameters on the radial extrude (radial forging) process by a 2D finite element method (FEM),01st Tehran International Congress on Manufacturing Engineering (TICME2005),Tehran
ارائهشده در
مجموعه مقالات اولین کنفرانس بین المللی و هفتمین کنفرانس ملی مهندسی ساخت و تولید1 فروردین 1384 · تهران