Invention Grant
US08402659B2 Sintered gear element featuring locally selective surface compression
有权
具有局部选择性表面压缩的烧结齿轮元件
- Patent Title: Sintered gear element featuring locally selective surface compression
- Patent Title (中): 具有局部选择性表面压缩的烧结齿轮元件
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Application No.: US11953137Application Date: 2007-12-10
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Publication No.: US08402659B2Publication Date: 2013-03-26
- Inventor: Gerhard Kotthoff
- Applicant: Gerhard Kotthoff
- Applicant Address: DE Radevormwald
- Assignee: GKN Sinter Metals Holding GmbH
- Current Assignee: GKN Sinter Metals Holding GmbH
- Current Assignee Address: DE Radevormwald
- Agency: Woodcock Washburn LLP
- Main IPC: B21K1/30
- IPC: B21K1/30

Abstract:
A method for producing an at least partially surface-densified metallic toothed element comprising a densified sintering material, in order to improve a strength profile, a preform of the toothed element being produced with a locally selective oversize profile relative to a final size of the toothed element and being rolled to the final size by means of at least one rolling die, the toothed element being densified in locally varied manner at least in the region of at least one flank and/or one root of a tooth of the toothed element to produce a densified outer layer.
Public/Granted literature
- US20080166579A1 Sintered Gear Element Featuring Locally Selective Surface Compression Public/Granted day:2008-07-10
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