Invention Grant
- Patent Title: Thermal stir welder
- Patent Title (中): 热熔焊机
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Application No.: US13157895Application Date: 2011-06-10
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Publication No.: US08127977B1Publication Date: 2012-03-06
- Inventor: R. Jeffrey Ding
- Applicant: R. Jeffrey Ding
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee Address: US DC Washington
- Agent Douglas Jackson; James J. McGroary
- Main IPC: B23K20/12
- IPC: B23K20/12 ; B23K37/00
Abstract:
A welding apparatus is provided for forming a weld joint between first and second elements of a workpiece. The apparatus heats the first and second elements to form an interface of material in a plasticized or melted state interface between the elements. The interface material is then allowed to cool to a plasticized state if previously in a melted state. The interface material, while in the plasticized state, is then mixed, for example, using a grinding/extruding mixer, to remove any dendritic-type weld microstructures introduced into the interface material during heating.
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