Effect of Forging Equipment Speed on plastic Deformation and Properties of Metal Powder Sintered Preform

The upsetting test of metal powder sintered preform by blow speed of the hydraulic press,crank press,pneumatic hammer and high energy rate forging hammer was reported.The relation between the deformation degree,blow speed and forging density was analysed.The results show that the upsetting deformation law of sintered preform is alike with the compact body,and the crank press is the best equipment of powder forging technology.