Abstract: A cutting tool insert is formed from a cemented carbide body and a coating particularly useful in medium-rough to rough turning of stainless-steels and superalloys. The cemented carbide body is formed from cemented carbide with a composition of 7.0-12.0 wt-% Co, 5.0-11.0 wt-% cubic carbide forming metals from group IVb, Vb and VIb of the periodic table, preferably Ti, Nb and Ta, and balance WC with a 10-30 ?m essentially cubic carbide phase free and binder phase enriched surface zone. The coating includes an MTCVD Ti(C,N) as the first layer adjacent the body having a thickness of from >2.5 to 7.0 ?m, on top of which an ?Al2O3 layer is present, with a thickness of between 2.0 and 5.0 ?m, and a total thickness of the coating of between 5.5 and 9.5 ?m. The alumina layer has a (006) texture.

Abstract: The present invention relates to a cutting tool insert comprising a cemented carbide body and a coating particularly useful in fine to medium-rough turning of stainless-steels. The cemented carbide body consists of a cemented carbide with a composition of 5.0-9.0 wt-% Co, 5.0-11.0 wt-% cubic carbide forming metals from group IVb, Vb and VIb of the periodic table, preferably Ti, Nb and Ta, and balance WC with a 10-30 ?m essentially cubic carbide phase free and binder phase enriched surface zone. The coating comprises an MTCVD Ti(C7N) as the first layer adjacent the body having a thickness of from 2.5 to 7.0 ?m, on top of which an ?-Al2O3 layer is present, with a thickness of between 2.0 and 5.0 ?m, and a total thickness of the coating between 5.5 and 9.5 ?m. The alumina layer has a (006) texture.

Abstract: The present invention relates to a cutting tool insert comprising a cemented carbide body and a coating particularly useful in medium-rough to rough turning of stainless-steels and superalloys. The cemented carbide body consists of a cemented carbide with a composition of 7.0-12.0 wt-% Co, 5.0-11.0 wt-% cubic carbide forming metals from group IVb, Vb and VIb of the periodic table, preferably Ti, Nb and Ta, and balance WC with a 10-30 mum essentially cubic carbide phase free and binder phase enriched surface zone. The coating comprises an MTCVD Ti(C7N) as the first layer adjacent the body having a thickness of from 2.5 to 7.0 ?m, on top of which an ?-Al2O3 layer is present, with a thickness of between 2.0 and 5.0 ?m, and a total thickness of the coating of between 5.5 and 9.5 ?m. The alumina layer has a (006) texture.

Abstract: The present invention relates to a cutting tool insert comprising a cemented carbide body and a coating particularly useful in fine to medium-rough turning of stainless-steels. The cemented carbide body consists of a cemented carbide with a composition of 5.0-9.0 wt-% Co, 5.0-11.0 wt-% cubic carbide forming metals from group IVb, Vb and VIb of the periodic table, preferably Ti, Nb and Ta, and balance WC with a 10-30 ?m essentially cubic carbide phase free and binder phase enriched surface zone. The coating comprises an MTCVD Ti(C7N) as the first layer adjacent the body having a thickness of from 2.5 to 7.0 ?m, on top of which an ?-Al2O3 layer is present, with a thickness of between 2.0 and 5.0 ?m, and a total thickness of the coating between 5.5 and 9.5 ?m. The alumina layer has a (006) texture.

Abstract: A hybrid drive system includes an internal combustion engine with an output shaft. An energy converter is connected to the output shaft via a coupling. The energy converter has first and second rotors which are rotatable at different speeds in relation to each other. At least one of the rotors is provided with one or more windings which are supplied with current from a current converter. The current converter is supplied with direct current from a direct current source. A transmission with variable gear ratio is coupled to one of the rotors. The transmission and the current converter cooperate via a control arrangement. The control arrangement comprises a control unit for controlling rotational speed and torque of the internal combustion engine and the energy converter.