| 摘要 |
The present disclosure relates to a deep hole drill tool of the type that includes a basic body, a cutting insert having a cutting edge, which is formed between a chip surface and a clearance surface. The chip surface includes a chamfer surface adjacent to the cutting edge and the clearance surface, the chamfer surface having a width of at least 0.2 mm defined between two boundary lines, and which, in each infinitesimal part along the cutting edge, forms an angle (γ) of at least 25° and at most 50° with a reference plane extending perpendicular to the center or rotation axis of the tool. |
| 主权项 |
1. A deep hole drill tool comprising:
a basic body having a center axis, toward which an imaginary reference plane extends at a right angle; and a cutting insert of a material that is harder than a material of the basic body, the cutting insert including a front side, a back side, and a cutting edge formed between a chip surface included in the front side and a clearance surface, extending from the chip surface toward the back side, the cutting edge running inward from a peripherally outer end situated along the basic body to an inner end, wherein the chip surface includes a chamfer surface in connection to the cutting edge and the clearance surface, the chamfer surface having a width of at least 0.2 mm defined between two boundary lines, and which, in each infinitesimal part along the cutting edge, forming an angle of at least 25° and at most 50° with said reference plane. |
