Metal-cutting tool, in particular a reaming tool and method of making the same

Patent metadata

Field	Value
Publication number	US-10960502-B2
Application number	US-201916537913-A
Country	US
Kind code	B2
Filing date	Aug 12, 2019
Priority date	Jan 4, 2017
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

A reaming tool includes a tool body having an axially rearward shank portion and an axially forward cutting portion, the forward cutting portion having at least one peripherally arranged cutting insert. The reaming tool also includes an inlet coolant channel formed in the tool body and an inlet opening at an axially rearward end of the shank portion. An outlet coolant channel is formed in the tool body and is in fluid communication with the inlet coolant channel, wherein the outlet coolant channel defines an outlet opening proximate to the cutting insert. In one particular aspect, at least a portion of the outlet coolant channel is non-linear. A method of making a component of the reaming tool by performing a printing operation on a substrate to form the component is also provided.

First claim

What is claimed is:

1. A method of making a component of a reaming tool, comprising:
providing a substrate; and
performing a printing operation on the substrate to form the component of the reaming tool on the substrate, including:
printing the component to include a cutting area;
printing the component to further include an outlet coolant channel proximate to the cutting area; wherein at least a portion of the outlet coolant channel is non-linear;
printing the component to include an inlet coolant channel configured to be in fluid communication with the outlet coolant channel;
printing the component to include a guide element seat configured for receiving a peripherally arranged guide element; and
printing the component to include an additional outlet coolant channel formed in the component and in fluid communication with the inlet coolant channel, wherein the additional outlet coolant channel comprises an additional outlet opening proximate to the guide element seat.

2. The method of claim 1 , wherein said printing of the component to further include the outlet coolant channel comprises forming the outlet coolant channel to have an outlet opening proximate to the cutting area.

3. The method of claim 2 , wherein said printing of the component to further include the cutting area comprises including an insert seat configured for receiving a cutting insert.

4. The method of claim 3 , wherein said printing of the component to further include the outlet channel comprises configuring the outlet opening for directing a coolant material towards the insert seat that receives the cutting insert.

5. The method of claim 3 , further including printing the component to include a chip flute adjacent to the cutting area.

6. The method of claim 5 , wherein said printing of the component to further include the chip flute comprises including an open chip flute that extends from an axial forward end of the component to adjacent an axial rearward end of the component.

7. The method of claim 6 , further including printing the component to include a forward coolant channel that defines a forward outlet opening in an axially forward face of the component.

8. The method of claim 7 , wherein:
said performing of the printing operation comprises printing the component to include an inlet coolant channel in fluid communication with the outlet coolant channel; and
said printing of the component to include the forward coolant channel comprises forming the forward coolant channel to be in fluid communication with the inlet coolant channel.

9. The method of claim 5 , wherein said printing of the component to include the chip flute comprises:
defining a sidewall; and
configuring the outlet opening on the sidewall.

10. The method of claim 2 , wherein:
said performing of the printing operation comprises printing the component to include an inlet coolant channel in fluid communication with the outlet coolant channel; and
said printing of the component to further include the outlet coolant channel comprises forming the outlet coolant channel to branch off of the inlet coolant channel and end at the outlet opening.

11. The method of claim 1 , further including printing the component to be an axially forward cutting portion of the reaming tool.

12. A component of a reaming tool made by the method of claim 1 .

13. The method of claim 1 , wherein said printing of the component to further include the outlet coolant channel comprises:
forming the outlet coolant channel to have an outlet opening proximate to the cutting area; and
forming at least a portion of the outlet coolant channel to be curved, arcuate or otherwise not entirely linear from the inlet coolant channel to the outlet opening.

14. The method of claim 1 , wherein said performing of the printing operation comprises printing the component to comprise a tool body.

15. The method of claim 14 , wherein:
the tool body has an axially rearward shank portion; and
said printing of the component to include the inlet coolant channel comprises:
forming the inlet coolant channel in the tool body; and
defining an inlet opening at an axially rearward end of the shank portion.

16. The method of claim 14 , wherein said printing of the component to include the coolant channel comprises forming the outlet coolant channel in the tool body.

Assignees

• Kennametal Inc

Inventors

• Ning Li

Classifications

• B23B51/06

  Drills with lubricating or cooling equipment {(B23B51/042 takes precedence)} · CPC title

• B23B51/0018 Primary

  Drills for enlarging a hole · CPC title

• B23P15/46 Primary

  reaming tools · CPC title

• Y10T408/89

  Tool or Tool with support · CPC title

• B23D77/02

  Reamers with inserted cutting edges · CPC title