公开(公告)号：US20220018410A1

公开(公告)日：2022-01-20

申请号：US16928579

申请日：2020-07-14

Applicant: GM Global Technology Operations LLC

Inventor： Steven J. Schuster ,  Matthew A. Robere ,  Kevin P. Callaghan

IPC: F16D65/12 ,  F16D65/00

Abstract: A brake rotor for a braking system of a motor vehicle is provided. The brake rotor includes a disc section for rotating about a longitudinal axis and engaging a brake pad assembly. The brake rotor further includes a hat section for attaching to a wheel. The hat section has a stepped surface spaced from the disc section along the longitudinal axis, and the stepped surface defines a recess for spacing the wheel and a portion of the stepped surface from one another when the wheel is attached to the hat section.

公开(公告)号：US11873873B2

公开(公告)日：2024-01-16

申请号：US17721661

申请日：2022-04-15

Applicant: GM Global Technology Operations LLC

Inventor： Benjamin Everest Slattery ,  Kevin P. Callaghan ,  Mark T. Riefe

IPC: F16D65/12 ,  C21D1/18 ,  B23K26/359 ,  C21D9/00 ,  C23C8/32

CPC classification number: F16D65/127 ,  B23K26/359 ,  C21D1/18 ,  C21D9/0068 ,  F16D65/125 ,  C21D2211/008 ,  C23C8/32 ,  F16D2200/0017 ,  F16D2250/0046 ,  F16D2250/0053

Abstract: Systems and methods of making an enhanced brake rotor having enhanced wear resistance are provided. The systems and methods provide a vehicular rotor comprising a base comprising iron (Fe). The base comprises an outer surface having a laser-hardened portion thereon. The laser-hardened portion comprises martensite and having a thickness of between 10 and 100 microns of the outer surface to define the enhanced brake rotor with enhanced wear resistance.

公开(公告)号：US20230332658A1

公开(公告)日：2023-10-19

申请号：US17721661

申请日：2022-04-15

Applicant: GM Global Technology Operations LLC

Inventor： Benjamin Everest Slattery ,  Kevin P. Callaghan ,  Mark T. Riefe

IPC: F16D65/12 ,  B23K26/359 ,  C21D9/00 ,  C21D1/18

CPC classification number: F16D65/127 ,  B23K26/359 ,  F16D65/125 ,  C21D9/0068 ,  C21D1/18 ,  F16D2250/0053 ,  F16D2250/0046 ,  F16D2200/0017 ,  C21D2211/008 ,  C23C8/32

Abstract: Systems and methods of making an enhanced brake rotor having enhanced wear resistance are provided. The systems and methods provide a vehicular rotor comprising a base comprising iron (Fe). The base comprises an outer surface having a laser-hardened portion thereon. The laser-hardened portion comprises martensite and having a thickness of between 10 and 100 microns of the outer surface to define the enhanced brake rotor with enhanced wear resistance.

公开(公告)号：US20230332657A1

公开(公告)日：2023-10-19

申请号：US17721654

申请日：2022-04-15

Applicant: GM Global Technology Operations LLC

Inventor： Benjamin Everest Slattery ,  Kevin P. Callaghan ,  Mark T. Riefe

IPC: F16D65/12

CPC classification number: F16D65/125 ,  F16D65/127 ,  F16D2200/0021 ,  F16D2250/0046 ,  F16D2065/132

Abstract: Systems and methods of making an enhanced vehicular brake rotor having improved wear and corrosion resistance are provided. The enhanced vehicular brake rotor comprises a brake rotor comprising a base comprised of iron (Fe). The base comprises an outer surface having open pores formed thereon. The rotor has a steam-treated layer formed on the outer surface and in the open pores. The steam-treated layer is comprised of iron oxide (Fe3O4) and has a thickness of between 10 and 50 microns for enhanced wear and corrosion resistance to define the enhanced vehicular rotor.