A method for removing the core of similar cast parts cast from a metal melt in a serial operation, wherein at least one core for replicating a mold element (A, K, L), which may be an orifice, a passage, a channel, a cavity or a recess, is placed in each cast part, and wherein the at least one core is formed from a molding material which, when subjected to impulse impact applied by at least one knocking unit, crumbles into fragments, comprising the following method steps: - providing a core removal machine equipped with at least one knocking unit, in which, as parameters of the impulse application, - the impact position of the knocking unit on the cast part, - the shape of the impact surface with which the knocking unit impinges on the cast part, - the impact direction, from which the knocking unit impinges on the cast part, - the duration of the impulse application, - the striking frequency of the knocking unit, - the striking force of the knocking unit, - the impact speed of the knocking unit, - the geometry of the knocking unit or - the mass of the knocking unit are variable either separately or as a combination of all or specific parameters; - performing a preliminary examination, in which, in each case, the adjustment value for the parameters of the impulse application is determined, which, within a predefined maximum duration of the impact application, causes the crumbling of the core into fragments having a size that, taking into consideration the smallest clear width of the mold element (A, K, L), ensures that the fragments can freely trickle out of the cast part; - installing the knocking unit of the core removal machine taking into account the adjustment values for the parameters of the impulse application that were determined in the preliminary examination; - taking up the serial operation, wherein for each of the similar cast parts, the knocking unit is operated while maintaining the adjustment values for the parameters of the impulse application that were determined in the preliminary examination, characterized in that, in the context of the preliminary examination, it is first determined by means of an analytical observation, taking place with the support of a computer simulation, from which direction in which manner the impulse must be given in order to achieve a fragmentation of the respective core in the shortest possible time. - providing a core removal machine equipped with at least one knocking unit, in which, as parameters of the impulse application, - the impact position of the knocking unit on the cast part, - the shape of the impact surface with which the knocking unit impinges on the cast part, - the impact direction, from which the knocking unit impinges on the cast part, - the duration of the impulse application, - the striking frequency of the knocking unit, - the striking force of the knocking unit, - the impact speed of the knocking unit, - the geometry of the knocking unit or - the mass of the knocking unit are variable either separately or as a combination of all or specific parameters; - the impact position of the knocking unit on the cast part, - the shape of the impact surface with which the knocking unit impinges on the cast part, - the impact direction, from which the knocking unit impinges on the cast part, - the duration of the impulse application, - the striking frequency of the knocking unit, - the striking force of the knocking unit, - the impact speed of the knocking unit, - the geometry of the knocking unit or - the mass of the knocking unit are variable either separately or as a combination of all or specific parameters; - performing a preliminary examination, in which, in each case, the adjustment value for the parameters of the impulse application is determined, which, within a predefined maximum duration of the impact application, causes the crumbling of the core into fragments having a size that, taking into consideration the smallest clear width of the mold element (A, K, L), ensures that the fragments can freely trickle out of the cast part; - installing the knocking unit of the core removal machine taking into account the adjustment values for the parameters of the impulse application that were determined in the preliminary examination; - taking up the serial operation, wherein for each of the similar cast parts, the knocking unit is operated while maintaining the adjustment values for the parameters of the impulse application that were determined in the preliminary examination,