Mechanically roughened brake rotors

Patent metadata

Field	Value
Publication number	US-2016178019-A1
Application number	US-201414578763-A
Country	US
Kind code	A1
Filing date	Dec 22, 2014
Priority date	Dec 22, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

A brake rotor includes an outer surface; first and second opposing braking surfaces, each bounded by the outer surface to form first and second opposing braking surface edges. A plurality of concentric grooves are formed on the first and/or second braking surfaces.

First claim

What is claimed is:

1 . A brake rotor comprising:
an outer surface; first and second opposing braking surfaces, each bounded by the outer surface to form first and second opposing braking surface edges; and a plurality of concentric grooves included on the first braking surface.

2 . The brake rotor of claim 1 , wherein each of the plurality of concentric grooves has a substantially constant diameter.

3 . The brake rotor of claim 1 , wherein the plurality of concentric grooves includes a first and second concentric grooves.

4 . The brake rotor of claim 3 , wherein the first groove is closer to the first braking surface edge than the second groove, and the first groove having a larger substantially constant diameter than the second groove.

5 . The brake rotor of claim 3 , wherein the first and second grooves are adjacent to each other and form a peak extending therebetween.

6 . The brake rotor of claim 5 , wherein a width of each peak is 100 to 200 μm.

7 . The brake rotor of claim 5 , wherein the first and second grooves each include a groove depth and a valley width.

8 . The brake rotor of claim 7 , wherein the groove depth of each of the first and second grooves is 50 to 150 μm.

9 . The brake rotor of claim 7 , wherein the valley width of each of the first and second grooves is 200 to 300 μm.

10 . The brake rotor of claim 1 , wherein the plurality of concentric grooves is included on a portion of the first braking surface.

11 . The brake rotor of claim 1 , further comprising a plurality of concentric grooves included on the second braking surface.

12 . The brake rotor of claim 11 , wherein the plurality of concentric groove on the second braking surface includes first and second concentric grooves, and wherein the first groove is closer to the first braking surface edge than the second groove, and the first groove having a larger substantially constant diameter than the second groove.

13 . A method comprising:
while rotating a brake rotor having first and second opposing braking surfaces, actuating a tool to roughen the first braking surface of the brake rotor to form a plurality of concentric grooves in the first braking surface of the brake rotor.

14 . The method of claim 13 further comprising:
simultaneously actuating a first and second tool to roughen the first and second braking surfaces of the brake rotor to form a plurality of concentric grooves on the first and second braking surfaces.

15 . The method of claim 13 , further comprising:
simultaneously actuating a first and second tool to roughen the first and second braking surfaces of the brake rotor to form a plurality of concentric grooves on the first and second braking surfaces, wherein the first and second tool is stationary during an actuating step.

16 . The method of claim 13 , further comprising deforming the plurality of concentric grooves on the first braking surface to form a plurality of deformed concentric grooves.

17 . The method of claim 13 , further comprising applying a coating to the concentric grooves of the first braking surface.

18 . A cutting tool comprising:
a body having a cutting surface; and one or more rows of cutting elements projecting outwardly from the cutting surface, each cutting element of each row including one or more groove cutting elements and one or more peak forming elements, each groove cutting element including one or more groove cutting teeth and each peak forming element having a cutting surface.

19 . The cutting tool of claim 18 , wherein groove cutting teeth are substantially equally spaced apart from each other in a first row.

20 . The cutting tool of claim 18 , wherein additional groove cutting teeth are equally spaced apart in a second row, the second row being parallel to a first row, and the groove cutting teeth in the second row are aligned with the peak forming elements of the first row.

Assignees

• Ford Motor Co

Inventors

• Stephenson David Alan
• Boileau James Maurice
• Potter Timothy J
• Coffman David Garrett

Classifications

• F16D2250/0038

  Surface treatment · CPC title

• F16D65/125

  characterised by the material used for the disc body · CPC title

• B23B5/02

  for turning hubs or brake drums (B23B5/04 takes precedence) · CPC title

• F16D65/127 Primary

  characterised by properties of the disc surface; Discs lined with friction material · CPC title

• B23B2235/045

  Simultaneous machining of both sides of the brake disc · CPC title