Method and device for producing precision blankings from a material strip

A method for producing precision blankings in a precision blanking die, wherein a material strip is clamped between two die halves comprising an upper and a lower die plate as well as an upper and a lower blanking punch, and the cutting operation in interaction with the upper and the lower blanking punch is performed as an incomplete compound die cut, wherein the precision blankings are removed from the die interior of the die in the running direction of the material strip,

• characterized in that the incomplete compound die cut along the circumference of the precision blanking is performed with a specially shaped cutting edge of the blanking punch and/or the die plate such that the precision blanking remains initially connected by a material bonding to at least one partial connecting part on the material strip, either on its upper or lower plane at a level relative to the material strip, and then it is moved together with the material strip in the running direction of the strip to a subsequent removal stage, in which the precision blanking and the material strip are separated from each other perpendicular to the running direction of the material strip towards the bottom by breaking out the precision blanking without a vertical shear force component and without being pressed back, wherein the removed precision blanking is discharged through a discharge chute in the die plate.