Abstract：The connecting rod is an essential part of the automobile engine. As one of the automobile transmission
parts, it is required to own high mechanical strength and consistency. Therefore, the powder compact prepared by
powder metallurgy method should have uniform density distribution. This paper used finite element deform soft‐
ware to simulate different densities of rod compact and determine that the relative density is 0.8. An optimal combi‐
nation scheme with forging speed of 350 mm/s, mold preheating temperature of 300 ℃, compact heating tempera‐
ture of 1 130 ℃ and friction coefficient of 0.2 is obtained from the numerical simulations designed by the ortho‐
graphical method. Finally, the reliability of the optimal combination is verified through experiments, and the prepa‐
ration of high-performance automotive connecting rods is achieved.
2023, Vol. 33 
