FIELD: manufacturing technology.
SUBSTANCE: cutting tool includes a base material and a coating layer formed on the surface of the base material. Coating layer comprises at least one α-type aluminum oxide layer. In a cross section of the α-type which is substantially parallel to the surface of the base material, when the angle formed between a normal to the cross section and a normal to the (222) face of particles in the α-type aluminum oxide layer is defined as the orientation difference and when the area of the particles having an orientation difference of 0–90°, is defined as 100 % of the cross section by area, and the area of the particles in the α-type aluminum oxide layer having an orientation difference of 0–90°, is divided into sections at a pitch of 10°, then the total area Sa of the particles in the α-type aluminum oxide layer having an orientation difference of 20° or more to less than 30°, is the maximum within the total of the areas of the nine sections at a pitch of 10°.
EFFECT: coated cutting tool is proposed.
25 cl, 2 dwg, 7 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CUTTING TOOL WITH CVD-COATING WITH LAYER OF κ-AlO TEXTURE {0 0 1} | 2017 |
|
RU2669134C1 |
| CUTTING TOOL WITH ABRASION RESISTANT COATING | 2014 |
|
RU2643754C2 |
| COATED CUTTING TOOL | 2014 |
|
RU2635055C2 |
| CVD-COATED CUTTING TOOL | 2017 |
|
RU2736536C2 |
| CVD COATED CUTTING TOOL | 2015 |
|
RU2704949C2 |
| CVD-COATED CUTTING TOOL | 2017 |
|
RU2736039C2 |
| COATED CUTTING TOOL | 2018 |
|
RU2766635C2 |
| CUTTING TOOL WITH COATING | 2018 |
|
RU2758424C2 |
| CUTTING TOOL EQUIPPED WITH COATING | 2018 |
|
RU2760426C2 |
| COATED CUTTING TOOL | 2018 |
|
RU2766604C2 |
