Exploration and Practice on Large Module Forging Penetration Problem with FM Forging Method

The 800mm × 1300mm module of 718H steel was made successful with the 3500 t quick forging machine,using FM forging process method.The results show that the forging process is reasonable and feasible;the ultrasonic of blanks more than 95% meet GB / T4162-B level requirements.The center porosity problem of large size mold steel was solved well.