Nuovo Pignone Spa

Nuovo Pignone Srl

Nuovo Pignone Tecnologie Srl

Emanuele Cigni

Massimo Guerrini

Maurizio Donati

A cutting head for a mill configured to rotate about an axis to remove material from a work piece includes a base surface, a side region connected to the base surface, and a top region connected to the side region. The top region defines a central area and a periphery. A plurality of top teeth are disposed on the top region. The top teeth have cutting edges configured to contact the work piece to remove material. Each cutting edge extends from the central area towards the periphery and includes an axially extending peak portion.

Milling cutter and method of use

A method for plunge milling a workpiece. The method includes rotating a cutting head while advancing the cutting head along a direction towards the workpiece; removing material from the workpiece with frontal teeth disposed on a frontal face of the cutting head; bending a tool holder configured to lead the cutting head inside the workpiece; stopping the advancing of the cutting head along the direction towards the workpiece when the cutting head has reached a predetermined depth inside the workpiece; and retrieving while rotating the cutting head from the inside of the workpiece such that side teeth of the cutting head remove material from the inside of the workpiece due to the bending of the tool holder.

Mill and method of use

A tool is provided. The tool comprises an interchangeable cutting portion and a holder to which the interchangeable cutting portion is adapted to be replaceably mounted. The interchangeable cutting portion comprises a first part with at least one cutting edge and a second part for connection to the holder, the second part being provided with a conical external abutment surface and an external cylindrical screw thread. The holder is provided with an internal cylindrical screw thread, to which the external screw thread is removably screwed, and a conical internal abutment surface, the conical external abutment surface and the conical internal abutment surface being mutually engageable for positioning the cutting portion and the holder relative to one another.

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Florence, Italy

Emanuele Cigni