METHOD FOR REPAIRING A PRESS INCLUDING A SURFACE DEFECT ON A MATRIX AND / OR PUNCH, INSERT FOR SUCH A METHOD AND PRESS COMPRISING SUCH AN INSERT

摘要

The invention relates to a method of repairing a die (1) and / or a punch of a press, said press being intended to form, by stamping, a piece between work surfaces (11) of the die (1) and the punch, the die (1) and / or the punch having a defect on a portion of said working surface (11), characterized in that it comprises: • A first step of forming a cavity (12) for housing an insert (2), said cavity (12) being formed along the working surface (11) of the die (1) and / or the punch, at the location of the defect; and a second step of removing the insert (2) in the cavity (12), the insert (2) being previously cooled in liquid nitrogen.