In this regard, one of the tuning applications Dr. schmitz aircraft structural parts, which exceeded 100mm deep grooves. In order to reduce the weight of this part, we need to remove material from the corner of the groove. This operation is necessary for small-sized mills will there is a high flutter.

Engineers involved in the project tried different overhang, each overhang used the high spindle speed machining process without changing any other aspect. The overhang is 8 times the diameter of the tool chatter occurs. When the overhang is nine times the diameter of the tool chatter even worse. But in the overhang of 10 times, there have been unexpected circumstances. In the tool overhang is longer, however, reduced chatter, because this overhang will just "sweet spot" is transferred to near the spindle at maximum speed. This application tools and other applications overhang study conducted has made it possible to give some rough indication of its effects.