Dynamic Efficiency: more chips in less time

With Dynamic Efficiency, HEIDENHAIN combines important functions of TNC contouring controls for heavy machining. They make the machine operator’s work easier, but also make the manufacturing process itself faster, more stable and more predictable—in short, more efficient. It combines effective control functions with intelligent machining strategies in order to increase the metal removal rate and reduce machining time.

The package comprises three options:

Adaptive Feed Control (AFC): optimize the feed rate
Active Chatter Control (ACC): reduce tool chatter
Trochoidal milling: accelerate roughing

Technical Information

Adaptive Feed Control (AFC)

Adaptive feed control optimizes the feed rate, taking into consideration the spindle power and other process data. Particularly when cutting conditions change during machining, e.g. through fluctuation cutting depths, tool wear, or changing material hardness, AFC ensures the best possible feed rate.

AFC

Dramatically reduces machining time
Prevents tool wear or tool breakage
Protects the machine’s mechanical elements
Shortens machining times

AFC webinar

ACC (Active Chatter Control)

When cutter teeth engage solid material it can generate disturbing chatter vibrations that leave ugly marks on the workpiece surface. Chatter increases heavy and irregular tool wear. In some situations the tool can even break. The ACC algorithm increases the stability limit of the spindle speed, and therefore increases machine performance.

ACC

Make higher cutting power possible
Dramatically reduces machining time
Increases the metal removal rate by up to 25 %
Increases tool life
Protects the machine’s mechanical elements

Trochoidal milling

The TNC cycle trochoidal milling accelerates roughing of slots with any kind of contour It superimposes a circular tool movement over a linear feed movement. The cycle requires an end mill and enables it to remove material over its entire cutting edge.

Trochoidal milling

Works with large cutting depths and high cutting speeds
Increases the removal rate

Considerable time gained through combining trochoidal milling and AFC

During trochoidal milling, the tool is is guided along a circular path into the material. Wherever there is no contact with the material along the way, AFC moves the tool at a much higher feed rate, thereby saving an enormous amount of time during the machining process.

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