Cutting insert

Patent metadata

Field	Value
Publication number	US-12280434-B2
Application number	US-202117792910-A
Country	US
Kind code	B2
Filing date	Jan 8, 2021
Priority date	Jan 17, 2020
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

A cutting insert for a cutting tool includes a body having a cutting edge, a rake face, and micro channels provided on the rake face adjacent the cutting edge. The micro channels define a grid pattern of micro channels that intersect each other in a region of the rake face where contact between a chip and the rake face is assumed to occur during cutting with the cutting insert.

First claim

The invention claimed is:

1. A cutting insert for a cutting tool, comprising a body having:
a cutting edge,
a rake face,
micro channels provided on said rake face adjacent the cutting edge, wherein the micro channels define a grid pattern of micro channels that intersect each other in a region of the rake face, wherein contact between a chip and the rake face occurs during cutting with the cutting insert, and
cooling channels provided inside the body, the cooling channels being configured to be connected to a cooling medium source, wherein the cooling channels have outlets in a region of the grid pattern defined by the micro channels.

2. The cutting insert according to claim 1 , wherein the micro channels comprises at least two micro channels extending in a first direction and at least two micro channels extending in a second direction and intersecting the micro channels extending in the first direction.

3. The cutting insert according to claim 2 , wherein the first direction is perpendicular to the second direction.

4. The cutting insert according to claim 2 , wherein that the first direction is parallel with the adjacent cutting edge.

5. The cutting insert according to claim 1 , wherein each micro channel has a width in the range of 20-1000 μm.

6. The cutting insert according to claim 1 , wherein each micro channel has a width of at least 50 μm.

7. The cutting insert according to claim 1 , wherein each micro channel has a width of 200 μm or less.

8. The cutting insert according to claim 1 , wherein each micro channel has a depth in the range of 20-1000 μm.

9. The cutting insert according to claim 1 , wherein each micro channel has a depth of at least 50 μm.

10. The cutting insert according to claim 1 , wherein each micro channel has a depth of 200 μm or less.

11. The cutting insert according to claim 1 , wherein a distance between neighboring micro channels that do not intersect each other is at least 1.5 times the width of the respective micro channel.

12. The cutting insert according to claim 1 , wherein the micro channels are at a distance k 1 from the cutting edge, wherein 200 μm≤k 1 ≤3 mm.

13. The cutting insert according to claim 12 , wherein an intersection of the micro channels is at a distance k 2 from the cutting edge, wherein k 1 ≤k 2 ≤k 1 +0.5 mm.

14. The cutting insert according to claim 1 , wherein the outlets of the cooling channels have a diameter which is at least 3 times the width of the micro channels.

Assignees

• Seco Tools Ab

Inventors

• M'Saoubi Rachid
• Liao Zhirong
• Thelin Jimmy
• Axinte Dragos

Classifications

• B23C5/283

  Cutting inserts with internal coolant channels · CPC title

• B23C5/202

  Plate-like cutting inserts with special form (special form related to securing of the insert B23C5/22) · CPC title

• B23B2250/12

  Cooling and lubrication · CPC title

• B23B2260/072

  Grooves · CPC title

• B23B2200/086

  with one or more grooves · CPC title