Method and apparatus for machining a blank from all directions

A method of machining a blank from all directions using at least one machine tool, the method comprising:

• a first machining step in which the blank is held by at least one first adapter and a first region is given a final partial shape by the machine tool, with the final partial shape corresponding to an intended use;
• a second machining step in which the partly machined blank is held in the first region by at least one second adapter, and a remaining region is given a final overall shape by the machine tool corresponding to the intended use;
• removing the partly machined blank in a defined mounting from a machining region of the machine took
• cleaning the partly machined blank after the first machining step;
• and
• preparing defined gripping surfaces in the remaining region for the defined mounting during the first machining step.

A method of machining a blank from all directions using at least one machine tool, the method comprising:

• a first machining step in which the blank is held by at least one first adapter and a first region is given a final partial shape by the machine tool, with the final partial shape corresponding to an intended use;
• a second machining step in which the partly machined blank is held in the first region by at least one second adapter, and a remaining region is given a final overall shape by the machine tool corresponding to the intended use;
• removing the partly machined blank in a defined mounting from a machining region of the machine tool;
• measuring the partly machined blank in a measuring station after the first machining step;
• and
• preparing defined gripping surfaces in the remaining region for the defined mounting during the first machining step.

A method of machining a blank from all directions using at least one machine tool, the method comprising:

• a first machining step in which the blank is held by at least one first adapter and a first region is given a final partial shape by the machine tool, with the final partial shape corresponding to an intended use;
• and
• a second machining step in which the partly machined blank is held in the first region by at least one second adapter, and a remaining region is given a final overall shape by the machine tool corresponding to the intended use;
• wherein the final partial shape comprises the root region of a turbine blade;
• wherein in the first machining step two defined gripping surfaces in the form of blind holes are milled on each of two opposite sides of the blank, a top pair being used for gripping with a gripper for removing the partly machined blank from a machining region of the machine tool and for repositioning the partly machined blank, and a bottom pair being used for defined fixing of the partly machined blank in a measuring station.

A method of machining a blank from all directions using at least one machine tool, the method comprising:

• a first machining step in which the blank is held by at least one first adapter and a first region is given a final partial shape by the machine tool, with the final partial shape corresponding to an intended use;
• and
• a second machining step in which the partly machined blank is held in the first region by at least one second adapter, and a remaining region is given a final overall shape by the machine tool corresponding to the intended use;
• wherein the first adapter grips the blank at a first end and a second end is fixed via a tailstock and center hole, so that in the first machining step a center region of the blank is given the final partial shape;
• wherein the second adapter grips the partly machined blank at the final partial shape in the center region and at least one end region of the blank is processed into the final overall shape;
• and
• wherein one of the end regions of the blank is also given the final partial shape in the first machining step.

A method of machining a blank from all directions using at least one machine tool, the method comprising:

• a first machining step in which the blank is held by at least one first adapter and a first region is given a final partial shape by the machine tool, with the final partial shape corresponding to an intended use;
• a second machining step in which the partly machined blank is held in the first region by at least one second adapter, and a remaining region is given a final overall shape by the machine tool corresponding to the intended use;
• wherein the final partial shape comprises a turbine blade;
• and
• wherein during the first machining step, unmachined projecting portions are left in at least one location of the turbine blade selected from the group consisting of a tip part and a root part.

A method of machining a blank from all directions using at least one machine tool, the method comprising:

• a first machining step in which the blank is held by at least one first adapter and a first region is given a final partial shape by the machine tool, with the final partial shape corresponding to an intended use;
• a second machining step in which the partly machined blank is held in the first region by at least one second adapter, and a remaining region is given a final overall shape by the machine tool corresponding to the intended use;
• wherein the final partial shape comprises a turbine blade;
• and
• wherein the second adapter grips the partly machined turbine blade using two gripping jaws, with the partly machined turbine blade defined on an axis that comes to lie substantially perpendicular to a fastening axis of the second adapter in the machine tool.