To provide a cutting tool insert for turning work of a steel made of a cemented carbide body and an aftertreatment film.
A first extreme internal layer belt having total thickness of 0.7-4.5μm is made of at least two layers of TiCxNyOz(X+Y+Z≤1), a second multilayer belt is made of Al2O3 and TiCxNyOz(X+Y+Z≤1), favorably, k-Al2O3 and TiN of al alternate layer of 5-31 in total, The Al2O3-layer is <0.5 μm, the TiCxNyOz is 0.01-0.2 μm and the multilayer has total thickness of 1.0-4.0 μm on this cutting tool insert. The multilayer is exposed toward a rake face and a flank along a cutting blade line and at least 0.03 from the cutting blade line of the rake face, and favorably contact length of a chip is at most 0.9 mm and is 0.02-0.2 mm on the flank.
LINDHOLM MIKAEL
JONSSON ANDERS
ANDERSSON GUNILLA
NORDGREN ANDERS
LAGERQUIST MIKAEL
| JPH1071507A | 1998-03-17 | |||
| JPH11131235A | 1999-05-18 | |||
| JP2001205505A | 2001-07-31 | |||
| JP2002363750A | 2002-12-18 | |||
| JPH09253916A | 1997-09-30 | |||
| JP2002361502A | 2002-12-18 | |||
| JP2002137103A | 2002-05-14 | |||
| JP2000515588A | 2000-11-21 |
Takashi Ishida
Tetsuji Koga
Masaya Nishiyama