Patent ID: 8578745

Claim:
A peening device for peening a turbine blade which has a blade leaf, a blade foot and a blade platform arranged between the blade leaf and blade foot, a part of the turbine blade which is to be peened being formed by that side of the blade platform which faces the blade foot, and a part of the turbine blade which is not to be peened being formed by the blade leaf and by that side of the blade platform which does not face the blade foot, comprising: a chamber with at least one orifice arranged in the chamber, the orifice dimensioned such that at least a part of the blade leaf is led at least partially through the orifice, wherein the orifice is surrounded by a nipple projecting toward a chamber interior; and a mounting that holds the turbine blade in place with respect to the nipple and with the blade foot inside the chamber, the mounting having a portion which, when that part of the turbine blade which is not to be peened is led at least partially through, completely covers the orifice in the chamber and completely surrounds that part of the turbine blade which is not to be peened between a region of the turbine blade which is adjacent to that part of the turbine blade which is to be peened and the orifice, the mounting configured such that the mounting completely surrounds an edge of the blade platform.