Workpiece with a three-dimensional surface

Flat workpiece (2) with a surface of the workpiece (2) designed three-dimensionally by means of a milled recess (4)， characterized in that that - the recess (4) is designed in the form of at least two geometric basic space shapes (6) arranged partially overlapping in their base areas (12)， - circumferential lines (8) of the geometric basic space shapes (6) in the form of the outer edges of the edge surfaces ( 10) are plastically shaped， - the edge surfaces (10) and base surfaces (12) of a first geometric base space shape (6) outside the space above a base surface (14)， which results from the overlap area of ????the overlapping base areas (12) of the geometric base space shapes (6)， are arranged in a first spatial plane (16)， - the edge surfaces (10) and base surfaces (12) of the first geometric basic space shape (6) in the edge area of ????the space above the base surface (14) in a second， lower than the first spatial plane (16) spatial plane (18) are arranged offset， - the edge surfaces (10) and base surfaces (12) of the second geometric base space shape (6) outside the space above the base surface (14) in the first plane (16) or a third spatial plane (20 ) are arranged， and - the edge surfaces (10) and base surfaces (12) of the second geometric basic space shape (6) are in the edge region of the space above the base surface (14) in the second spatial plane (18) when the edge surfaces (10) and Base areas (12) of the second geometric base space shape (6) are formed outside the space above the base area (14) in the first spatial plane (16)， or are located in a fourth spatial plane， when the edge surfaces (10) and base surfaces (12) of the second geometric base space shape (6) are formed outside the space above the base surface (14) in the third spatial plane (20).