Et sic dicta clangentes mori defectum refers to the tincidunt mori non reparari potest ad restituere usum munus damnum, id est, fecit per damnum vel exiguo vulgo dicti clangoris. 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 De Forging mori maxime fingunt camera lima nunc non reparare modum ut restituat productio de qualified rem vosmet diam.