Walter Ag

Markus Wetli

Rolf Huber

For producing forked roots of turbine blades, the turbine blades are, in a first step, roughed-in and smoothed (finished) on their outer faces in a single operation with two rigidly coupled disk milling cutters that are provided hard metal cutter inserts. In a second step, the forked root is formed with fingers by a set of rigidly coupled disk milling cutters that are provided with hard metal cutter inserts. The disk milling cutters form slots in the forked root. All of the slots are simultaneously opened (roughed-in) and smoothed (finished), the slots having parallel walls.

Method and apparatus for producing forked roots of turbine blades

A machining tool (,) has a tool body (,) with tip seats (,), to which cutting tips (,) are assigned fixedly and individually. The cutting tips (,) belong to a set of cutting tips. The machining tool (,) includes further sets of cutting tips, again with cutting tips (,) individually assigned to the tip seats (,). In order to assure that each cutting tip (,) will be mounted on the tip seat (,) on which it was ground, both the tip seats (,) and cutting tips (,through,) are provided with markings (,), which allow an unequivocal, unmistakable association.

Growing community of inventors

Dintikon, Switzerland

Markus Wetli