Title :
Simulation and physical modeling of forging sequence of BJ type outer race
Author :
Sadeghi, M.H. ; Mohammadi, M.M.
Author_Institution :
Dept. of Mech. Eng., Tarbiat modares Univ. of Technol., Tehran
Abstract :
A constant velocity joint outer race is an important load-supporting part in cars. Its geometry is very complicated and its required precision is high. Traditional hot and cold forging methods have their own limitations to produce such a complex shaped part. Therefore, multistage forging may be advantageous to produce complex shaped parts. Actual problems in ironing sequence are prevention of ductile fracture and surface defects in final product and true formation of internal ball grooves of the workpiece. In this study Cockroft & Latham failure criterion was applied to final ironing sequence. Finally physical modeling is down using lead, In order to verifying simulation and damage modeling results the cross section profile of internal grooves is measured by a CMM machine and compared with simulation based profile.
Keywords :
automobile industry; automotive components; coordinate measuring machines; ductile fracture; failure (mechanical); forging; lead; BJ type outer race; CMM machine; Cockroft&Latham failure criterion; cars; constant velocity joint outer race; ductile fracture; forging sequence; internal ball grooves; ironing sequence; multistage forging; surface defects; Billets; Computer aided manufacturing; Coordinate measuring machines; Costs; Deformable models; Forging; Geometry; Machining; Predictive models; Surface cracks; CMM; Damage modeling; Multistage forging; Outer race; Physical modeling;
Conference_Titel :
Automation Congress, 2008. WAC 2008. World
Print_ISBN :
978-1-889335-38-4
Electronic_ISBN :
978-1-889335-37-7
