Interpolated milling methods

Patent metadata

Field	Value
Publication number	US-10695846-B2
Application number	US-201916431225-A
Country	US
Kind code	B2
Filing date	Jun 4, 2019
Priority date	Apr 4, 2016
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A milling method includes moving a milling tool having at least two axially spaced apart sets of cutting inserts to an axial position within a bore in a material and rotating the milling tool about a longitudinal axis. The method further includes initiating contact between the milling tool and a wall of the bore in a region of the wall having a least amount of material at the axial position. The method further includes moving the milling tool around a perimeter of the bore.

First claim

What is claimed is:

1. A method, comprising:
moving a milling tool having at least two axially spaced apart sets of cutting inserts to an axial position within a bore having a wall at least partially defining at least two tapered channels extending perpendicular to and intersecting the bore, and being wider at a first wider end than a second narrower end;
rotating the milling tool about a longitudinal axis;
initiating contact between the milling tool and a wall of the bore in a region of the wall having a least amount of material at the axial position, the initiating step includes initiating contact between the milling tool and the wall of the bore in a region of the wall including the first wider ends of the at least two tapered channels; and
moving the milling tool around a perimeter of the bore, each of the at least two axially spaced apart sets of cutting inserts is aligned with one of the at least two tapered channels when the milling tool is in the axial position such that the moving the milling tool around the perimeter of the bore enlarges the at least two tapered channels aligned with the set of cutting inserts.

2. The method of claim 1 , wherein the moving step includes moving the milling tool around an entire perimeter of the bore at the axial position at least once to form at least one groove in the bore.

3. The method of claim 1 , wherein the moving step includes moving the milling tool around an entire perimeter of the bore at the axial position at least once to form a face and a groove in the bore.

4. The method of claim 1 , wherein the initiating step includes moving the milling tool in an arcuate path and contacting the wall of the bore at an acute angle.

5. The method of claim 1 , wherein the moving of the milling tool around the perimeter of the bore occurs after the initiating of contact between the milling tool and the wall of the bore.

6. The method of claim 1 , further comprising forming the bore in a valve body.

7. The method of claim 6 , wherein the moving of the milling tool around the perimeter of the bore enlarges the at least two tapered channels aligned with the set of cutting inserts by removing material from the valve body.

8. The method of claim 7 , wherein more of the material is removed at the second narrower end than the first wider end of each of the at least two tapered channels.

9. A method, comprising:
moving a milling tool including two axially spaced apart sets of cutting inserts to an axial position within a bore having a wall at least partially defining at least two tapered channels extending perpendicular to and intersecting the bore, and being wider at a first wider end than a second narrower end;
rotating the milling tool about a longitudinal axis;
initiating contact between the milling tool and a wall of the bore in a region of the wall having a least amount of surface area at the axial position, the initiating step includes initiating contact between the milling tool and the wall of the bore in a region of the wall including the first wider end of the at least two tapered channels; and
moving the milling tool around a perimeter of the bore, each of the at least two axially spaced apart sets of cutting inserts is aligned with one of the at least two tapered channels when the milling tool is in the axial position such that the moving the milling tool around the perimeter of the bore enlarges the at least two tapered channels aligned with the set of cutting inserts.

10. The method of claim 9 , wherein the moving step includes moving the milling tool around an entire perimeter of the bore at the axial position at least once to form at least one groove in the bore.

11. The method of claim 9 , wherein the moving step includes moving the milling tool around an entire perimeter of the bore at the axial position at least once to form a face and a groove in the bore.

12. The method of claim 9 , wherein the initiating step includes moving the milling tool in an arcuate path and contacting the wall of the bore at an acute angle.

13. The method of claim 9 , wherein the moving of the milling tool around the perimeter of the bore occurs after the initiating of contact between the milling tool and the wall of the bore.

14. The method of claim 9 , further comprising forming the bore in a valve body.

15. The method of claim 14 , wherein the moving of the milling tool around the perimeter of the bore enlarges the at least two tapered channels aligned with the set of cutting inserts by removing material from the valve body.

16. The method of claim 15 , wherein more of the material is removed at the second narrower end than the first wider end of each of the at least two tapered channels.

Assignees

• Ford Motor Co

Inventors

• Habel Michael Joseph
• Carlone Gregory S
• Chukwuma Emenike Nick
• Ziada Youssef

Classifications

• B23C2210/04

  Angles · CPC title

• B23C5/28

  Features relating to lubricating or cooling · CPC title

• B23C2210/247

  Stepped milling cutters · CPC title

• B23C3/05 Primary

  Finishing valves or valve seats {(machines for grinding seat surfaces, e.g. in valve housings, B24B15/00)} · CPC title

• B23C5/10

  Shank-type cutters, i.e. with an integral shaft · CPC title