Walter Ag

Rolf Huber

Rolf Vollmer

Siegfried Deiss

Markus Wetli

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.

Precision milling cutter equipped with cutting tips

To form undercut grooves in a work piece, especially to retain turbine rotor blades, in a first step, the grooves are cut such that the flanks of the grooves have a preliminarily desired shape; then, in a second step, a bell-type countersink is moved radially to cut the desired shape of the flanks of the groove. Countersink cutters for the second step include a plurality of groups of cutting bits or inserts secured to posts on a shell, or bell-type countersink, in accordance with the profile to be cut.

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Tübingen, Germany

Rolf Huber