Invention Grant
- Patent Title: Laser welded multi-layered steel gasket assembly
- Patent Title (中): 激光焊接多层钢垫圈总成
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Application No.: US11679955Application Date: 2007-02-28
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Publication No.: US07374176B1Publication Date: 2008-05-20
- Inventor: Lloyd Garrold Wade
- Applicant: Lloyd Garrold Wade
- Applicant Address: US MI Southfield
- Assignee: Federal-Mogul World Wide, Inc.
- Current Assignee: Federal-Mogul World Wide, Inc.
- Current Assignee Address: US MI Southfield
- Agency: Dickinson Wright PLLC
- Agent Robert L. Stearns
- Main IPC: F02F11/00
- IPC: F02F11/00 ; B21D53/84 ; B23K26/00

Abstract:
The subject invention provides a method of manufacturing a multi-layered steel gasket assembly including a plurality of steel gasket layers each having a predetermined electrical resistance and including at least one coating layer of a material having an electrical resistance substantially greater than that of the steel gasket layers. The method includes the steps of: applying the coating layer of the selected material to at least one surface of at least one of the steel gasket layers to provide at least one coated gasket layer; assembling the coated gasket layer with at least one other steel gasket layer such that the coating layer prevents the use of traditional resistance welding in joining the gasket layers; and thereafter welding the assembled gasket layers together by either a JAG or CO2 laser to form the multi-layered steel gasket assembly.
Public/Granted literature
- US20080100004A1 LASER WELDED MULTI-LAYERED STEEL GASKET ASSEMBLY Public/Granted day:2008-05-01
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