The so-called forging die failure refers to the forging die can not be repaired to restore its use function of damage, that is, caused by the damage or scrap of the commonly said forging die. Because plays a forming die chamber of the function of the forgings, it directly in contact with the hot billet, bear the function of impulse type heat load, and forging equipment applied under high energy impact load and blank metal flow scouring and embellish the role of the slip agent and other environmental media, in the mold of metallurgy and processing quality specification and normal operating conditions, forging die of damaged or destroyed Most occurred in the die chamber, therefore, the failure of forging die is mainly mold chamber file now can't repair method to restore the production of qualified forgings capabilities.