Near Net Shape Forging of CV Joint Outer Race
A CV joint outer race is an important load-supporting part in cars. Its geometry is very complicated. 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 this part. The key point of outer race is performing the geometry of ball grooves with negative slope angle. Traditional methods form the ball groove by machining that takes long time and waste many portions of the material. Thus near net shape forging is an attractive option for producing of outer race. In this study, the process sequence in the multistage forging of a CV joint outer race has been investigated by using the rigid plastic finite volume method and forging process sequence is designed which can produce a near net-shape housing without defects within a given press capacity. Finally physical modelling with commercial lead is used to verify the reliability of numerical simulation results.
M. S. J. Hashmi, B. S. Yilbas and S. Naher
M.M. Mohammadi and M.H. Sadeghi, "Near Net Shape Forging of CV Joint Outer Race", Advanced Materials Research, Vols. 83-86, pp. 143-149, 2010