# US 2014/0360355 A1 · Cylindrical Surface Profile Cutting Tool and Process

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- Number: US 2014/0360355 A1
- Document ID: US20140360355A1
- Status: Published application
- Kind: A1
- Application number: 13/913,865
- Filed: 2013-06-10
- Published: 2014-12-11
- Earliest claimed: 2013-06-10
- Assignees: Ford Global Technologies, LLC
- Applicants: Ford Global Technologies, LLC
- Inventors: Rodney G. Whitbeck; David Alan Stephenson; Keith Raymond Bartle; David Garrett Coffman
- Web page: https://patentgrep.com/patent/US20140360355A1

## CPC

- F02F 1/18: Other cylinders
- B23B 41/12: for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts
- B24B 5/08: involving a vertical tool spindle
- F16J 10/02: Cylinders designed to receive moving pistons or plungers
- Y10T 408/34: Combined cutting means
- F02F: CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- B23B: TURNING; BORING (arrangements for copying or controlling B23Q)
- B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A cutting tool. The cutting tool includes a cylindrical body and one or more axial rows of cutting elements, which project outwardly from and are situated radially to the circumference of the cylindrical body. Each cutting element of each row includes one or more pocket cutting elements and one or more groove cutting elements. Each pocket cutting element includes a cutting surface. Each groove cutting element includes a cutting surface having groove cutting teeth.

## Claims

### Claim 1

A cutting tool comprising:
a cylindrical body; and
one or more axial rows of cutting elements projecting outwardly from and situated radially to the circumference of the cylindrical body, each cutting element of each row including one or more pocket cutting elements and one or more groove cutting elements, each pocket cutting element including a cutting surface, and each groove cutting element including a cutting surface having groove cutting teeth.

### Claim 2 (depends on 1)

The cutting tool of claim 1, wherein the height of the groove cutting teeth is greater than the height of the pocket cutting teeth by a nonzero offset h.

### Claim 3 (depends on 1)

The cutting tool of claim 1, wherein the axial cutting elements are substantially equally radially spaced apart from each other.

### Claim 4 (depends on 1)

The cutting tool of claim 1, wherein the one or more axial rows of cutting elements includes two or more axial rows of cutting elements.

### Claim 5 (depends on 4)

The cutting tool of claim 4, wherein the width of each of the two or more axial rows of cutting elements overlaps adjacent axial rows of cutting elements.

### Claim 6 (depends on 4)

The cutting tool of claim 4, wherein the two or more axial rows of cutting elements include first and second axial rows of cutting elements, each having the same sequence of groove and pocket cutting elements, axially offset by one cutting element.

### Claim 7 (depends on 1)

The cutting tool of claim 1, wherein the axial rows of cutting elements include three or more cutting elements.

### Claim 8 (depends on 7)

The cutting tool of claim 7, wherein the three or more cutting elements include one pocket cutting element and two groove cutting elements.

### Claim 9 (depends on 8)

The cutting tool of claim 8, wherein the two groove cutting elements are adjacent to each other.

### Claim 10 (depends on 1)

The cutting tool of claim 1, wherein the groove cutting surface includes flat valley portions between the pocket cutting teeth.

### Claim 11 (depends on 1)

The cutting tool of claim 1, wherein the top surfaces of the groove cutting teeth are offset radially from the top surface of the pocket cutting element by a nonzero value h.

### Claim 12 (depends on 1)

The cutting tool of claim 1, wherein the groove cutting teeth include a pair of side walls substantially parallel to each other and a top surface substantially perpendicular to the pair of side walls.

### Claim 13 (depends on 1)

The cutting tool of claim 1, wherein the cutting elements are formed of a material having a stiffness greater than an aluminum or magnesium alloy.

### Claim 14 (depends on 1)

The cutting tool of claim 1, wherein the pocket and groove cutting surfaces are tangentially to the surface of the cylindrical body.

### Claim 15 (depends on 1)

The cutting tool of claim 1, wherein the diameter of the inner surface of a cylinder bore cut with the cutting tool is significantly greater than the cutting tool diameter.

### Claim 16

A cutting element of a cutting tool and comprising:
a body having a cutting surface and a tapered surface extending away from the cutting edge, the cutting edge including a series of rectangular cutting teeth, the body formed of a tool material suitable for machining aluminum or magnesium alloy, and the series of rectangular cutting teeth cutting grooves in the aluminum or magnesium alloy.

### Claim 17

A cylinder bore comprising:
an inner surface including an axial travel area and an axial non-travel area; and
a plurality of annular grooves formed in the axial non-travel area.

### Claim 18 (depends on 17)

The cylindrical bore of claim 17, wherein the nominal diameter of the axial travel area is greater than that of the axial non-travel area.

### Claim 19 (depends on 17)

The cylindrical bore of claim 17, wherein the axial non-travel area includes two discontinuous axial widths of the cylindrical bore, and the axial travel area extends therebetween.

### Claim 20 (depends on 17)

The cylindrical bore of claim 17, wherein the aspect ratio of the depth of the annular grooves to the width of the annual grooves is 0.5 or less.
